@inproceedings{SproeteBensFischeretal., author = {Spr{\"o}te, Roland and Bens, Oliver and Fischer, Thomas and Raab, Thomas and H{\"u}ttl, Reinhard F.}, title = {Soil water repellency as a phenomenon of initial soil formation - approaches and first results from the Transregional Collaborative Reserch Centre (SFB/TRR) 38}, series = {EGU General Assembly 2009, held in Vienna, Austria, 19 - 24 April 2009}, booktitle = {EGU General Assembly 2009, held in Vienna, Austria, 19 - 24 April 2009}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{SproeteVesteFischeretal., author = {Spr{\"o}te, Roland and Veste, Maik and Fischer, Thomas and Lange, Philipp and Bens, Oliver and Raab, Thomas and H{\"u}ttl, Reinhard F.}, title = {Wie beeinflussen Kiefern (Pinus sylvestris L.) die Entwicklung der Benetzungshemmung auf Sandb{\"o}den?}, series = {B{\"o}den verstehen - B{\"o}den nutzen - B{\"o}den fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011}, booktitle = {B{\"o}den verstehen - B{\"o}den nutzen - B{\"o}den fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011}, language = {de} } @inproceedings{SproeteVesteFischeretal., author = {Spr{\"o}te, Roland and Veste, Maik and Fischer, Thomas and Lange, Philipp and Bens, Oliver and Raab, Thomas and H{\"u}ttl, Reinhard F.}, title = {Development of biologicalsoil crusts in initial ecosystems in Lusatia, Germany}, series = {DBG Jahrestagung 2009 Bonn "B{\"o}den - eine endliche Ressource", 05.-13.09.2009, Bonn}, booktitle = {DBG Jahrestagung 2009 Bonn "B{\"o}den - eine endliche Ressource", 05.-13.09.2009, Bonn}, language = {en} } @misc{SutLohmannFischerRepmannetal., author = {Sut-Lohmann, Magdalena and Fischer, Thomas and Repmann, Frank and Raab, Thomas and Dimitrova, Tsvetelina}, title = {Feasibility of field portable near infrared (NIR) spectroscopy to determine cyanide concentrations in soil}, series = {Water, Air and Soil Pollution}, volume = {223}, journal = {Water, Air and Soil Pollution}, number = {8}, issn = {1573-2932}, doi = {10.1007/s11270-012-1298-y}, pages = {5495 -- 5504}, abstract = {Vicinities of manufactured gas plants were often contaminated with solid iron-cyanide complexes as a result of the coal gasification process. During the remediation of affected soils, knowledge about contaminant concentrations is crucial, but laboratory methods are often expensive and time consuming. Rapid and non-destructive field methods for contaminant determination permit an analysis of large sample numbers and hence, facilitate identification of 'hot spots' of contamination. Diffuse near infrared reflectance spectroscopy has proven to be a reliable analytical tool in soil investigation. In order to determine the feasibility of a Polychromix Handheld Field Portable Near-Infrared Analyzer (FP NIR), various sample preparation methods were examined, including homogenizing, sieving, drying, and grinding. Partial least squares calibration models were developed to determine near infrared (NIR) spectral responses to the cyanide concentration in the soil samples. As a control, the contaminant concentration was determined using conventional flow injection analysis. The experiments revealed that portable near-infrared spectrometers could be a reliable device for detecting cyanide concentrations >2,400 mgkg-1 in the field and >1,750 mgkg-1 after sample preparation in the laboratory.We found that portable NIR spectrometry cannot replace traditional laboratory analyses due to high limits of detection, but that it could be used for identification of contamination 'hot spots'.}, language = {en} } @inproceedings{MykhailovaRaabGypseretal., author = {Mykhailova, Larysa and Raab, Thomas and Gypser, Stella and Fischer, Thomas}, title = {Development and hydrology of biological soil crusts -- first results from a surface inoculation experiment}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{SutLohmannFischerRepmannetal., author = {Sut-Lohmann, Magdalena and Fischer, Thomas and Repmann, Frank and Raab, Thomas}, title = {Long-Term Release of Iron-Cyanide Complexes from the Soil of a Manufactured Gas Plant Site}, series = {Journal of Environmental Protection}, volume = {4}, journal = {Journal of Environmental Protection}, number = {11B}, issn = {2152-2219}, doi = {10.4236/jep.2013.411A2002}, pages = {8 -- 19}, abstract = {Iron-cyanide (Fe-CN) complexes have been detected at Manufactured Gas Plant sites (MGP) worldwide. The risk of groundwater contamination depends mainly on the dissolution of ferric ferrocyanide. In order to design effective reme- diation strategies, it is relevant to understand the contaminant's fate and transport in soil, and to quantify and mathe- matically model a release rate. The release of iron-cyanide complexes from four contaminated soils, originating from the former MGP in Cottbus, has been studied by using a column experiment. Results indicated that long-term cyanide (CN) release is governed by two phases: one readily dissolved and one strongly fixed. Different isotherm and kinetic equations were used to investigate the driving mechanisms for the ferric ferrocyanide release. Applying the isotherm equations assumed an approach by which two phases were separate in time, whereas the multiple first order equation considered simultaneous occurrence of both cyanide pools. Results indicated varying CN release rates according to the phase and soil. According to isotherm and kinetic models, the long-term iron cyanide release from the MGP soils is a complex phenomenon driven by various mechanisms parallely involving desorption, diffusion and transport processes. Phase I (rapid release) is presumably mainly constrained by the transport process of readily dissolved iron-cyanide complexes combined with desorption of CN bound to reactive heterogeneous surfaces that are in direct contact with the aqueous phase (outer-sphere complexation). Phase II (limited rate) is presumably driven by the diffusion controlled processes involving dissolution of precipitated ferric ferrocyanide from the mineral or inner-sphere complexation of fer- ricyanides. CN release rates in phase I and II were mainly influenced by the pH, organic matter (OM) and the total CN content. The cyanide release rates increased with increasing pH, decreased with low initial CN concentration and were retarded by the increase in OM content.}, language = {en} } @inproceedings{SutLohmannFischerRepmannetal., author = {Sut-Lohmann, Magdalena and Fischer, Thomas and Repmann, Frank and Raab, Thomas}, title = {Feasibility of field portable near infrared (NIR) spectroscopy to determine cyanide concentrations in soil}, series = {European Geosciences Union, General Assembly 2013, Vienna, Austria, 07 - 12 April 2013}, booktitle = {European Geosciences Union, General Assembly 2013, Vienna, Austria, 07 - 12 April 2013}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {In Germany, at more than 1000 sites, soil is polluted with an anthropogenic contaminant in form of iron-cyanide complexes. These contaminations are caused by former Manufactured Gas Plants (MGPs), where electricity for lighting was produced in the process of coal gasification. The production of manufactured gas was restrained in 1950, which caused cessation of MGPs. Our study describes the application of Polychromix Handheld Field Portable Near-Infrared (NIR) Analyzer to predict the cyanide concentrations in soil. In recent times, when the soil remediation is of major importance, there is a need to develop rapid and non-destructive methods for contaminant determination in the field. In situ analysis enables determination of 'hot spots', is cheap and time saving in comparison to laboratory methods. This paper presents a novel usage of NIR spectroscopy, where a calibration model was developed, using multivariate calibration algorithms, in order to determine NIR spectral response to the cyanide concentration in soil samples. As a control, the contaminant concentration was determined using conventional Flow Injection Analysis (FIA). The experiments revealed that portable near-infrared spectrometers could be a reliable device for identification of contamination 'hot spots', where cyanide concentration are higher than 2400 mg kg-1 in the field and >1750 mg kg-1 after sample preparation in the laboratory, but cannot replace traditional laboratory analyses due to high limits of detection.}, language = {en} } @misc{RodionovNiiAnnangFischeretal., author = {Rodionov, Andrei and Nii-Annang, Seth and Fischer, Thomas and Gattinger, Andreas and Bens, Oliver and Raab, Thomas and H{\"u}ttl, Reinhard F.}, title = {Cross-linked polyacrylates in post-mining substrates: persistence and effects on plant growth}, series = {Soil Use and Management}, volume = {30}, journal = {Soil Use and Management}, number = {1}, issn = {1475-2743}, doi = {10.1111/sum.12103}, pages = {78 -- 87}, abstract = {Application of hydrophilic polymers composed of cross-linked polyacrylate can improve soil water-holding capacity and accelerate the restoration of post-mining substrates. In this work, we studied the persistence of a polyacrylate polymer incorporated into a soil and its impact on plant nutrients at a reclamation site of former lignite mining in Lusatia (Germany). In contrast to autumn application, the incorporation of the polymer enhanced the sequestration of plant-derived carbon in the soil, which was reflected by a significant increase in the concentration of a lignin marker. Attenuated total reflexion-Fourier transform infrared spectra (ATR-FTIR) and total elemental contents in the applied polymer suggested an intensive cation exchange between the polymer framework and the soil-forming substrate. In addition, there was an enrichment of carbonaceous material, which seems to reduce the swelling and thus the water-holding capacity of the cross-linked polyacrylate. Conversely, this process protected the polymer structure from rapid decomposition.}, language = {en} } @inproceedings{SchneiderGerkeMaureretal., author = {Schneider, Anna and Gerke, Horst H. and Maurer, Thomas and Nenov, Rossen and Raab, Thomas}, title = {Hydro-geomorphic differentiation of an artificial catchment during the initial phase of ecosystem development}, series = {AGU Fall Meeting 2011, San Francisco, Calif., 5-9 Dec. 2011}, booktitle = {AGU Fall Meeting 2011, San Francisco, Calif., 5-9 Dec. 2011}, pages = {H31A-1134}, language = {en} } @incollection{BachmannBensElmeretal., author = {Bachmann, Ute and Bens, Oliver and Elmer, Michael and Fischer, Thomas and Raab, Thomas and H{\"u}ttl, Reinhard F.}, title = {Boden und Standortqualit{\"a}t}, series = {Nachhaltige Bewirtschaftung von Eichen-Kiefern-Mischbest{\"a}nden : im Spannungsfeld von Klimawandel, Waldumbau und internationalem Holzmarkt}, booktitle = {Nachhaltige Bewirtschaftung von Eichen-Kiefern-Mischbest{\"a}nden : im Spannungsfeld von Klimawandel, Waldumbau und internationalem Holzmarkt}, editor = {Elmer, Michael and K{\"a}tzel, Ralf and Bens, Oliver and Bues, Claus-Thomas and Sonntag, Herbert and H{\"u}ttl, Reinhard F.}, publisher = {oekom}, address = {M{\"u}nchen}, isbn = {978-3-86581-196-7}, pages = {31 -- 44}, language = {de} } @inproceedings{GerkeSchneiderMaureretal., author = {Gerke, Horst H. and Schneider, Anna and Maurer, Thomas and Raab, Thomas}, title = {Quantification and reconstruction of Initial 3D Sediment Mass Distribution in an Artificially-Created Catchment Area Using GOCAD}, series = {American Geophysical Union, Fall Meeting - Eos transactions}, volume = {90}, booktitle = {American Geophysical Union, Fall Meeting - Eos transactions}, number = {52, Suppl.}, abstract = {For systems such as soils or watersheds, the initial distribution of sediment mass and composition at the starting point of the development are mostly not well-known. The development of such systems, however, has frequently been assumed to depend on boundary and initial conditions including the solid phase. Here, an experimental watershed of about 6 ha surface area was artificially-created in order to imitate an initial stage just at the beginning of the geo-ecosystem development. However, sediment homogeneity could not be achieved for this large-scale field experiment, and the 3D spatial distribution of structures and components remained uncertain. The objective of this study was to quantify and reconstruct the initial sediment distribution and the first development stages using aerial photographs, point information, and a 3D model. The watershed was made of coarse-textured sediments of quaternary origin with a low permeable clay liner as the bottom boundary. A 2D horizontal digital elevation model (DEM) of the surface and a DEM of the subsurface clay layer are used to construct a 3D triangulated numerical grid of the catchment's initial spatial structure using the 3D-GIS software GOCAD. Physical and chemical soil properties obtained from borehole samples are assigned to this model and interpolated onto the 3D grid. The volumetric changes in space and time are quantified and related to material properties to obtain the mass changes. Correlations between terrain attributes, sediment properties, and mass changes are explored specifically in regions of differing source materials. A temporal sequence of surface DEMs is obtained from photogrammetric, high-precision ground based laser scanning and airborne laser scanning data. 3D models of elevation change are constructed from these DEMs. The processes following the initial state are mainly characterized by runoff-induced erosive mass relocations related to the distribution of surface and subsurface structures and sediment properties. The results suggest that both sediment structures and mass translocations differ between the western and eastern parts of the watershed and that correlations between initial surface structures and subsequent mass changes exist.}, language = {en} } @misc{HeinkenBlumroederAdhikarietal., author = {Heinken, Thilo and Blumr{\"o}der, Jeanette S. and Adhikari, Yojana and Balthasar, Cathrina and Binder, Anja and Birkhofer, Klaus and Bischoff, Antje and Brosinsky, Arlena and Bubner, Ben and Clerc, Danica and Djoudi, El Aziz and Dobkowitz, Sophia and Francke, Till and Gerwin, Werner and Hartong, Heinrich and Hess, Carsten and Jarling, Ren{\´e} and Jouy, Florent and Leinen, Loretta and Meißner, Andreas and Raab, Thomas and Repmann, Frank and R{\"o}nnefarth, Susanne and Schaaf, Wolfgang and Schirrmacher, Marina and Schmehl, Marie-Therese and Schmitt, Thomas and Schr{\"o}der, Jens and Sch{\"u}le, Maren and Sturm, Knut and Welle, Torsten and Ibisch, Pierre L.}, title = {PYROPHOB - A post-fire ecosystem research project to inform management for resilient forest development}, series = {Tuexenia}, volume = {44}, journal = {Tuexenia}, issn = {0722-494X}, doi = {10.14471/2024.44.004}, pages = {35}, abstract = {PYROPHOB (fire-resistant) is the name of an interdisciplinary research project that is running for five years from 2020 to 2025. In this project, eight institutions are investigating the ecological effects of wildfires and subsequent forest management strategies in pine forests (plantations) in Brandenburg (NE Germany), with the aim of formulating practical recommendations for managing fire-prone forests and the effective restoration of post-fire forest areas. We provide a brief overview of what is known about the effects of wildfire on abiotic and biotic parameters in temperate pine forests, as well as the effects of silvicultural treatments. To date, we know little about how different components of biodiversity are linked in post-fire forest ecosystems and how management affects their functioning. By describing the project, we illustrate the requirements for the implementation of such an applied research project. We emphasize the importance of the study design for dealing with interdisciplinary questions and for the quantitative synthesis of research results. The project comprises a set of standardised field plots in two wildfire areas covering different post-fire management options. Fifteen study sites were established, including two reference sites in unburned pine stands, each with ten study plots as replicates. In situ nitrogen mineralisation, litter decomposition tests and soil biological activity are used for soil biological characterisation. Microclimate data is measured continuously. Standing and lying dead wood and tree regeneration are recorded as key indicators of the success of forestry treatments. Further methods com-prise terrestrial laser scanning, remote sensing techniques as well as surveys of vegetation and above and below ground biomass. Identification of fruiting body-forming fungi, phytoparasites and ectomycorrhizal fungi is supported by marker gene sequencing. Faunistic indicators comprise predatory soil arthropods (pairs of emergence tents and soil traps), saproxylic beetles (flight traps and funnel traps), moths (automated window traps), mammals (camera traps), and breeding birds (visual and acoustic observation). We discuss the strengths and limitations of the project design. We are able to systematically capture short-term temporal shifts in parameters and trends in post-fire ecosystem development. Research in a real landscape with ongoing environmental changes and interventions pres-ents challenges for experimental design, data analysis and interpretation. The drivers of ecosystem development are rarely completely independent or perfectly balanced, and lack of replication is ine-vitable. The two fires did not occur in the same year and season, resulting in different initial conditions for the colonisation of the burned areas. Finally, a large part of one study area was again affected by a fire in 2022, which destroyed direct comparability with the other sites. Despite these obstacles the project has started to generate valuable results to address management and conservation challenges.}, language = {en} } @misc{HollaenderBiemeltRaabetal., author = {Holl{\"a}nder, Hartmut M. and Biemelt, Detlef and Raab, Thomas and Schoenheinz, Dagmar}, title = {Hydrological earth observatories and artificial catchments: From observation to modelling}, series = {Physics and Chemistry of the Earth}, volume = {36}, journal = {Physics and Chemistry of the Earth}, number = {1-4}, issn = {1873-5193}, doi = {10.1016/j.pce.2010.12.012}, pages = {1 -- 2}, language = {en} } @misc{KruemmelbeinBensRaabetal., author = {Kr{\"u}mmelbein, Julia and Bens, Oliver and Raab, Thomas and Naeth, M. Anne}, title = {A history of lignite coal mining and reclamation practices in Lusatia, eastern Germany}, series = {Canadian journal of soil science}, volume = {92}, journal = {Canadian journal of soil science}, number = {1}, issn = {1918-1841}, pages = {53 -- 66}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Extending and simplifying the standard K{\"o}hn-pipette technique for grain size analysis}, series = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, booktitle = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Grain size distribution is a fundamental parameter to characterize physical properties of soils and sediments. Manifold approaches exist and according to the DIN ISO 11277 soil texture is analyzed by default with the combined pipette sieving and sedimentation method developed by K{\"o}hn.With this standard technique subfractions of sand and silt as well as the total clay content can be determined but the differentiation of clay subfractions is impossible. As the differentiation of the clay subfractions yields relevant information about pedogenesis, we present a protocol basing on standard techniques of granulometry with easy to handle and low cost equipment. The protocol was tested on a set of soil samples to cover the range of grain size distributions.}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Contradictory indications from terrestrial archives for the asynchronous LGM glaciation in the Central Spanish Pyrenees}, series = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, booktitle = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Studies from several Mediterranean sites suggest a nonuniform glaciation during the last glacial cycle. For the Pyrenees an asynchronous maximum ice extent compared to the global last glacial maximum (LGM) is controversially discussed. Our study sites are located in the Central Spanish Pyrenees, namely the Aragon and Gallego Valley. Both valleys are type locations for the Pleistocene glaciations and the early maximum ice extent for the Pyrenees was dated amongst other sites in the Gallego Valley to about 36 ka. Due to the potential time span since the earlier deglaciation compared to LGM sites from Central Europe we used a pedological and sedimentological approach to reconstruct the Late Quaternary landscape development. Our results indicate a considerable reshaping of the LGM landscape prior to the onset of the Holocene. The LGM tills are covered by a deposit with high content of fine sand and coarse silt. On the slopes the clasts in these fine-grained sediments are aligned parallel to the slope direction, whereas in the underlaying tills the clasts are aligned rectangular to the slope direction and therefore representing the direction of the Pleistocene glacier movement.We attribute the alignment of the clasts in the sediment covering the tills to solifluction induced by periglacial conditions. The high contents of coarse silt and fine sand are also characteristic for the eolian component in periglacial slope deposits. OSL datings suggest an age of about 14 ka for these sediments. Soil micromorphology shows that the periglacial deposits were not subject to intensive pedogenic processes prior to the sedimentation but that profiles are strongly affected by lessivation after deposition. Soil erosion is only evident during the Holocene and we associate these phases of soil erosion with the human impact. We found no indications for geomorphologic and pedogenic processes between the reported deposition of the LGM till around 36 ka and theperiglacial conditions dated in our study to about 14 ka.}, language = {en} } @inproceedings{SchwabBrauerBlaszkiewiczetal., author = {Schwab, Markus and Brauer, Achim and Blaszkiewicz, Miroslaw and Raab, Thomas and Wilmking, Martin and Blume, Theresa}, title = {The Virtual Institute of Integrated Climate and Landscape Evolution Analyses - ICLEA}, series = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, booktitle = {European Geosciences Union, General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {The GFZ, Greifswald University and the Brandenburg University of Technology together with their partner the Polish Academy of Sciences strive for focusing their research capacities and expertise in a Helmholtz Virtual Institute for Integrated Climate and Landscape Evolution Analyses (ICLEA). The Coordination Team is based at the GFZ in Potsdam and consists of a permanent scientific manager and administrative personnel. ICLEA offers young researchers an interdisciplinary and structured education and promote their early independence through coaching and mentoring. Postdoctoral rotation positions at the ICLEA partner institutions ensure mobility of young researchers and promote dissemination of information and expertise between disciplines. Training, Research and Analytical workshops between research partners of the ICLEA virtual institute are another important measure to qualify young researchers.}, language = {en} } @misc{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Geophysical prospection on Late Quaternary sediments in the Gallego Valley, Central Spanish Pyrenees}, series = {Zeitschrift f{\"u}r Geomorphologie, Suppl.}, volume = {58}, journal = {Zeitschrift f{\"u}r Geomorphologie, Suppl.}, number = {3}, issn = {1864-1687}, doi = {10.1127/0372-8854/2014/S-00165}, pages = {47 -- 62}, abstract = {This study aims to characterize the Late Quaternary stratigraphy in a type region of Pleistocene glaciation in the Central Spanish Pyrenees by using geophysical prospection techniques to extrapolate stratigraphical field information from soil pits. The main objectives are (i) to identify the thickness of the Quaternary sediments, (ii) to characterize the internal structures and stratifications within the Quaternary deposits and (iii) to test the validity of combined geophysical prospection techniques, including shallow seismic refraction (SSR) and electric resistivity tomography (ERT). We focus on two selected study sites: the Late Pleistocene terminal moraine at Seneg{\"u}{\´e} on the bottom of the G{\´a}llego Valley and a Pleistocene non-glaciated slope located nearby. This study proves that information about the depth, structure and distribution of Late Quaternary sediments (glacial, periglacial and fluvial) can be gathered by the combination of geophysical techniques (SSR and ERT). These techniques allow for a reliable, inexpensive and fast extrapolation of stratification information from soil pits and enable Late Quaternary and Eocene sediments to be distinguished. The reconstruction of the sediment genesis is facilitated by the geophysical techniques due to the potential to prospect the internal structures of large areas.}, language = {en} } @inproceedings{KnoopDornackDietrichetal., author = {Knoop, Christine and Dornack, Christina and Dietrich, Nils and Kr{\"u}mmelbein, Julia and Raab, Thomas}, title = {Quality and condition of residues from organic waste fermentation with regard to its usage as soil amendment}, series = {Proceedings, Fifth International Symposium on Energy from Biomass and Waste, San Servolo, Venice, Italy, 17-20 November 2014}, booktitle = {Proceedings, Fifth International Symposium on Energy from Biomass and Waste, San Servolo, Venice, Italy, 17-20 November 2014}, publisher = {CISA Publisher}, address = {Padova}, abstract = {The input of biowaste material in biogas plants has increased in the recent years. With that comes a certain amount of residues that can potentially be applied as organic soil amendment in order to recycle nutrients and to maintain and improve soil functions. The aim of this article is to give an impression of preliminary results of our study on characteristics of solid fermentation residues from different German biogas plants using organic waste material as main input substrate. A fundamental analysis shall reveal information such as material composition, nutrient and heavy metal concentration and impurity content. These characteristics are compared to existing data on composts and residues from organic waste treatment and will be evaluated in the context of organic amendment application.}, language = {en} } @inproceedings{Raab, author = {Raab, Thomas}, title = {Defining Point Zero of Pedogenesis - What About Pre-Industrial Land Use?}, series = {2014 GSA Annual Meeting in Vancouver, British Columbia (19-22 October 2014)}, booktitle = {2014 GSA Annual Meeting in Vancouver, British Columbia (19-22 October 2014)}, publisher = {Geological Society of America}, address = {Boulder, Colo.}, pages = {S. 37}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Extending and simplifying the standard K{\"o}hn-pipette technique for grain size analysis}, series = {3rd Annual ICLEA Workshop 2014, Dynamics of Climate and Landscape Evolution of Cultural Landscapes in the Northern Central European Lowlands since the Last Ice Age}, booktitle = {3rd Annual ICLEA Workshop 2014, Dynamics of Climate and Landscape Evolution of Cultural Landscapes in the Northern Central European Lowlands since the Last Ice Age}, editor = {Schwab, Markus J. and Theuerkauf, Martin and Brauer, Achim and Wilmking, Martin and Lampe, Reinhard}, publisher = {GFZ German Research Centre for Geosciences}, address = {Potsdam}, doi = {10.2312/GFZ.b103-14028}, pages = {40}, language = {en} } @inproceedings{SchwabBrauerBłaszkiewiczetal., author = {Schwab, Markus J. and Brauer, Achim and Błaszkiewicz, Mirosław and Raab, Thomas and Wilmking, Martin}, title = {Bridging long proxy data time series and instrumental observation in the Virtual Institute of Integrated Climate and Landscape Evolution Analyses - ICLEA}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{SchneiderHirschRaabetal., author = {Schneider, Anna and Hirsch, Florian and Raab, Thomas and Wechler, Klaus-Peter}, title = {Reconstructing spatial and temporal patterns of soil formation in an anthropogenic drift sand area in Northeastern Germany}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{Raab, author = {Raab, Thomas}, title = {Was ist eigentlich Geopedologie?}, series = {Forschung \& Lehre : alles was die Wissenschaft bewegt}, volume = {22}, journal = {Forschung \& Lehre : alles was die Wissenschaft bewegt}, number = {8}, issn = {0945-5604}, pages = {646 -- 647}, abstract = {Die Geopedologie kann den Erd- und Umweltwissenschaften zugerechnet werden. Sie hat ihre Wurzeln in der Geomorphologie und der Bodenkunde. Hinzu kommen Aspekte der Geologie, der Mineralogie und Petrologie. Geforscht wird interdisziplin{\"a}r.}, language = {de} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Human impact on late Quaternary landscapes in the Central Spanish Pyrenees}, series = {AGU Meeting Abstract, 2011 Fall Meeting San Francisco 2011}, booktitle = {AGU Meeting Abstract, 2011 Fall Meeting San Francisco 2011}, language = {en} } @inproceedings{RaabHirsch, author = {Raab, Thomas and Hirsch, Florian}, title = {Quart{\"a}re Sedimente und Bodenbildung in den Aragonesischen Pyren{\"a}en}, series = {AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten}, booktitle = {AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten}, editor = {Wunderlich, J. and Houben, P.}, publisher = {Goethe Universit{\"a}t, Institut f{\"u}r Physische Geographie}, address = {Frankfurt am Main}, pages = {S. 38}, language = {de} } @misc{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Stratigraphy and distribution of Late Quaternary sediments in the Aragon- and Gallego Valley (Aragonese Pyrenees, Spain)}, series = {Quaternary International}, volume = {279-280}, journal = {Quaternary International}, doi = {10.1016/j.quaint.2012.08.370}, pages = {S. 202}, abstract = {Within the scope of the research project post-LGM pedogenesis and geomorphodynamics in the Aragonese Pyrenees (Spain), funded by the DFG (Az RA 931/3-1), soils and sediments are used to reconstruct the Late Quaternary landscape formation. By employing multiple field and laboratory methods, several sediment facies (glacial, periglacial, fluvial and anthropogenic induced colluvial displacement) can be distinguished. Due to small scale horizontal and vertical distribution of the Quaternary sediments, the genetic differentiation is crucial for the dating of periglacial and glacial phases. The polygenetic sediment sequences indicate periods of post-glacial geomorphodynamic, probably induced by changing climatic or anthropogenic influences. The glacial sediments are preserved as lateral and terminal moraines. Due to the arrangement of the moraines, several Pleistocene glacial advances can be recognized. Cold climate conditions led to the formation of periglacial slope deposits which are classified as lower and upper heads in accordance to findings from Central Europe (Raab \& V{\"o}lkel 2003, Raab et al. 2010). Although lower heads are restricted to the Pleistocene extraglacial landscape, upper heads can be located in the Pleistocene extraglacial and glacial landscape. Upper heads are characterized by a high amount of silt, which is interpreted as the result of an aeolian admixture. The aeolian component is not limited to the upper head but can also be found as loess deposit on glaciofluvial and fluvial terraces. Due to the characteristically low inclination of the terraces the aeolian cover was only sparsely affected by erosion. On the other hand, on steeper slopes, intensive land use results in residual shallow sediment cover above the bedrock in the upper slopes and deep colluvial layers on the foot slopes and valley bottoms.}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Sedimentologische Untersuchungen zur quart{\"a}ren Landschaftsgeschichte in den Aragonesischen Pyren{\"a}en}, series = {AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten}, booktitle = {AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten}, editor = {Wunderlich, J. and Houben, P.}, publisher = {Goethe Universit{\"a}t, Institut f{\"u}r Physische Geographie}, address = {Frankfurt am Main}, pages = {S. 19}, language = {de} } @inproceedings{TuruHirschPenaMonneetal., author = {Turu, Valenti and Hirsch, Florian and Pena-Monne, J. L. and Raab, Thomas and Ros, X. and Marti-Bono, Carlos and Constante-Orrios, A.}, title = {Prospeccion geofisica y geomecanica de la ribera de Biescas (pirineos centrales): estructura del relleno sedimentario del fondo del valle y los sedimentos de vertiente}, series = {Resums XIII Reunio Nacional de Quaternari, AEQUA, Andorra 2011}, booktitle = {Resums XIII Reunio Nacional de Quaternari, AEQUA, Andorra 2011}, editor = {Turu, Valenti and Constante, Ana}, publisher = {Imp. Envalira [u.a.]}, address = {Andorra la Vella}, isbn = {978-99920-1-861-3}, pages = {81 -- 83}, language = {es} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Post-LGM-zeitliche Pedogenese und Geomorphodynamik in den Spanischen Zentralpyren{\"a}en}, series = {Jahrestagung 2012, 10. - 13. Oktober 2012 in M{\"u}nchen/Campus Weihenstephan, Deutscher Arbeitskreis f{\"u}r Geomorphologie, Tagungsband zur Critical Zone-Forschung}, booktitle = {Jahrestagung 2012, 10. - 13. Oktober 2012 in M{\"u}nchen/Campus Weihenstephan, Deutscher Arbeitskreis f{\"u}r Geomorphologie, Tagungsband zur Critical Zone-Forschung}, editor = {V{\"o}lkel, J{\"o}rg}, publisher = {M{\"u}nchen}, address = {Technische Universit{\"a}t}, pages = {S. 26}, language = {de} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Reliktische Bodenbildung in den Spanischen Zentralpyren{\"a}en als Hinweis auf sp{\"a}tquart{\"a}re Klimawechsel}, series = {Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, Berlin, Potsdam}, booktitle = {Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, Berlin, Potsdam}, publisher = {Deutsche Bodenkundliche Gesellschaft}, address = {G{\"o}ttingen}, language = {de} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Soil formation on Late Quaternary sediments in the Central Pyrenees (Spain)}, series = {Landscapes and soils through time, proceedings, Hohenheim, July 28th - August 01th, 2011}, booktitle = {Landscapes and soils through time, proceedings, Hohenheim, July 28th - August 01th, 2011}, editor = {Sauer, Daniela and Jahn, Reinhold and Stahr, Karl}, address = {Hohenheim}, pages = {4 -- 5}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Distribution, formation and chronology of Late Quaternary sediments in the Central Spanish Pyrenees}, series = {8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume}, booktitle = {8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume}, publisher = {International Association of Geomorphologists}, address = {Paris}, pages = {S. 342}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Micromorphology and macrofabrics of Late Quaternary sediments in the Aragonese Pyrenees, Spain}, series = {8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume}, booktitle = {8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume}, publisher = {International Association of Geomorphologists}, address = {Paris}, pages = {S. 1018}, abstract = {Within the scope of the research project Post-LGM pedogenesis and geomorphodynamics in the Aragonese Pyrenees we used a combination of field and laboratory methods to differentiate and classify Late Quaternary sediments. Our analyses indicate no post sedimentary erosion of the LGM lateral moraines in the Aragon and Gallego valley. Precipitation of calcium carbonate led to the fixation of the diamictons and thus stabilized the glacial landforms. Clasts in the glacial sediments are orientated parallel to the Pleistocene glacial flow direction and therefore underpin the stability of the glacial deposits during paraglacial times. Grain size analyses and OSL ages indicate the covering of glacial sediments by an eolian deposit before the onset of the Holocene.}, language = {en} } @inproceedings{DietrichKnoopKruemmelbeinetal., author = {Dietrich, Nils and Knoop, Christine and Kr{\"u}mmelbein, Julia and Raab, Thomas}, title = {Einfluss der Ausbringung von aufbereiteten G{\"a}rr{\"u}ckst{\"a}nden aus der Bioabfallverg{\"a}rung auf bodenphysikalische Eigenschaften}, series = {DBG Jahrestagung 2015, M{\"u}nchen, 7.-11. September 2015}, booktitle = {DBG Jahrestagung 2015, M{\"u}nchen, 7.-11. September 2015}, pages = {1}, abstract = {In Deutschland fallen j{\"a}hrlich ca. 13 Mio t Bioabfall an. Im Zuge der Novellierung des EEG 2014 erfolgte eine Aufhebung aller Sonderverg{\"u}tungen. Da zuk{\"u}nftig keine erh{\"o}hten, einsatzstoffbezogenen Verg{\"u}tungen (z. B. f{\"u}r Mais, Zuckerr{\"u}ben und Getreide) mehr vorgesehen sind, wird sich der Ausbau der Biomasse auf den Einsatz von Reststoffen (z. B. G{\"u}lle und Abfallstoffe) konzentrieren . Aus diesem Grund ist mit einer verst{\"a}rkten Zunahme von G{\"a}rr{\"u}ckst{\"a}nden aus Bioabf{\"a}llen zu rechnen. Im Rahmen des vom BMBF gef{\"o}rderten VeNGA-Projektes Grundlagenuntersuchungen zur Verwertung und N{\"a}hrstoffnutzung der boden- und pflanzenbezogenen Wirkung von G{\"a}rr{\"u}ckst{\"a}nden aus der Abfallverg{\"a}rung, erfolgt die genaue Charakterisierung unterschiedlicher G{\"a}rrestprodukte und Aufbereitungsverfahren hinsichtlich ihrer bodenphysikalischen Wirkung und ihrer Effekte auf Wachstum und Entwicklung von landwirtschaftlichen Kulturen. In dem Projekt werden G{\"a}rprodukte aus zwei Laboranlagen und einer Technikumsanlage mittels vier Verfahren aufbereitet und in Gef{\"a}ßversuchen und einem dreij{\"a}hrigen Feldversuch hinsichtlich ihrer langfristigen boden- und pflanzenbezogenen Wirkung untersucht. Die unterschiedliche Aufbereitung der G{\"a}rreste erfolgt nach der Kompostierung aus demselben Material, in Form von Rollpellets, Presspellets, zerfasertem Kompost und einer Referenzvariante aus gesiebtem Kompost. Bei den unter kontrollierten Bedingungen im Gew{\"a}chshaus durchgef{\"u}hrten viermonatigen Gef{\"a}ßversuchen wurden die G{\"a}rprodukte unter Sommerweizen und im Feldversuch unter Hirse, Senf und Gr{\"u}nroggen getestet. Erste Ergebnisse nach dem ersten Versuchsjahr zeigen sowohl f{\"u}r die Gef{\"a}ßversuche als auch im Freilandversuch einen positiven Effekt f{\"u}r die Rollpellets auf den Biomasseertrag im Vergleich zu den anderen Aufbereitungsvarianten. Aufgrund des gleichen Ausgangsmaterials der verschiedenen Varianten deutet der Mehrertrag bei der Applikation der Rollpellets auf eine positive bodenphysikalische Wirkung und verbesserte Porenverh{\"a}ltnissen, die mit einer Steigerung des Wasserhalteverm{\"o}gens einhergeht, hin. Des Weiteren besitzen die Rollpellets im Vergleich zu den anderen getesteten Varianten gute Lager-, Transport- und Applikationseigenschaften. Auch konnte in Rhizotronenversuch gezeigt werden, dass die verschieden G{\"a}rrestprodukte unterschiedliche Einfl{\"u}sse auf das Wurzelwachstum von Sommerweizen besitzen.}, language = {de} } @inproceedings{KnoopDietrichHeinrichetal., author = {Knoop, Christine and Dietrich, Nils and Heinrich, Martina and Kr{\"u}mmelbein, Julia and Dornack, Christina and Raab, Thomas}, title = {Aufbereitung von Bioabfall-G{\"a}rresten zur Nutzung als Bodenverbesserer}, series = {Tagungsband, 10. Biogastagung - Anaerobe Biologische Abfallbehandlung, 29.-30. Semtember 2015, Dresden}, booktitle = {Tagungsband, 10. Biogastagung - Anaerobe Biologische Abfallbehandlung, 29.-30. Semtember 2015, Dresden}, publisher = {Forum f{\"u}r Abfallwirtschaft und Altlasten e.V.}, address = {Pirna}, pages = {177 -- 186}, abstract = {Mit der Implementierung des Kreislaufwirtschaftsgesetzes (KrWG) im Jahr 2012 hat sich die Bundesregierung gesetzlich auf eine getrennte Erfassung von Bioabf{\"a}llen in privaten Haushalten ab Januar 2015 festgelegt. Bioabf{\"a}lle werden in Deutschland bereits in {\"u}ber 100 Biogasanlagen eingesetzt und k{\"o}nnten in Zukunft verst{\"a}rkt als G{\"a}rsubstrat genutzt werden. Die nach der Verg{\"a}rung verbleibenden organischen R{\"u}ckst{\"a}nde sollen im Sinne der Kreislaufwirtschaft als organischer Bodenverbesserer auf landwirtschaftliche Fl{\"a}chen r{\"u}ckgef{\"u}hrt werden. Im Rahmen des VeNGA-Projektes (Grundlagenuntersuchungen zur Verwertung und N{\"a}hrstoffnutzung sowie der boden- und pflanzenbezogenen Wirkung von G{\"a}rr{\"u}ckst{\"a}nden aus der Abfallverg{\"a}rung) am Lehrstuhl Geopedologie und Landschaftsentwicklung der Brandenburgischen Technischen Universit{\"a}t Cottbus-Senftenberg (BTU) in Zusammenarbeit mit der Firma Grossmann Ingenieur Consult Dresden (GICON) und dem Institut f{\"u}r Stadt{\"o}kologische Projekte Berlin (IASP) sollen Aufbereitungsm{\"o}glichkeiten f{\"u}r R{\"u}ckst{\"a}nde aus der Bioabfallverg{\"a}rung untersucht werden. Im Fokus steht dabei der Einfluss der Substratbehandlung w{\"a}hrend des Biogas- und Aufbereitungsprozesses auf die Eigenschaften der entstehenden D{\"u}ngeprodukte. Die Untersuchungen werden sowohl im Labor als auch im Technikum durchgef{\"u}hrt. Die Charakterisierung der festen G{\"a}rr{\"u}ckst{\"a}nde aus der Bioabfallverg{\"a}rung hat gezeigt, dass diese ein {\"a}hnliches N{\"a}hrstoffpotential wie Gr{\"u}nd{\"u}nger oder Frischkompost besitzen. Durch den organischen Abbau w{\"a}hrend der Verg{\"a}rung kommt es zur Aufkonzentration von N{\"a}hrstoffen und Schwermetallen in der festen Phase. Der Stickstoff liegt zu durchschnittlich 25 \% in Form von pflanzenverf{\"u}gbarem Ammoni-um vor. W{\"a}hrend der Aufbereitung ist jedoch eine Teiltrocknung der G{\"a}rr{\"u}ckst{\"a}nde unumg{\"a}nglich, was zun{\"a}chst zum Stickstoffverlust f{\"u}hrt. Es ist also von einer geringen Stickstoffverf{\"u}gbarkeit in den festen G{\"a}rprodukten auszugehen. Der Einsatz der aufbereiteten G{\"a}rprodukte in Topfexperimenten und im Feldversuch hat gezeigt, dass die Ausbringung in Kombination mit Minerald{\"u}ngung zu einem erh{\"o}hten Biomasseertrag f{\"u}hrt. Dies l{\"a}sst eine positive Wirkung der G{\"a}rprodukte auf die Bodeneigenschaften schlussfolgern. Feste G{\"a}rr{\"u}ckst{\"a}nde k{\"o}nnen bei Erf{\"u}llung der Kriterien nach BioAbfV als organischer Bodenverbesserer eingesetzt werden. Eine Aufbereitung ist hierf{\"u}r in den meisten F{\"a}llen notwendig. Dies gilt insbesondere f{\"u}r Substrate, die vor der Verg{\"a}rung keiner St{\"o}rstoffabscheidung unterzogen werden. Das zweistufige Fest-Fl{\"u}ssig-Verfahren, welches f{\"u}r die Untersuchungen angewendet wird, hat den Vorteil besonders unanf{\"a}llig gegen{\"u}ber St{\"o}rstoffen zu sein. Der St{\"o}rstoffgehalt im G{\"a}rr{\"u}ckstand ist dadurch vergleichsweise h{\"o}her als bei anderen Verfahren, was einen gr{\"o}ßeren Aufbereitungsaufwand nach sich zieht.}, language = {de} } @inproceedings{HirschRaabSchneideretal., author = {Hirsch, Florian and Raab, Thomas and Schneider, Anna and Wechler, Klaus-Peter}, title = {Late Holocene eolian fossilization of Podzols in Northeastern Germany}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {The North European lowland has been formed by glacial and periglacial processes in the Late Pleistocene. Multiple reshaping since the Late Glacial considerably changed the landscape up to and including especially historic times. Sediment sequences and (fossilized) soils can improve our understanding of Late Quaternary landscape development, but mapping of buried soils and surfaces is often limited to single outcrops. Ongoing archaeological rescue excavations in the pre-field of the open-cast mine Cottbus-Nord (northeastern Germany) with dense excavation trenches in an about 10 ha dune and drift sand area reveal multilayered sediment sequences with fossilized soils and sediments from the Late Pleistocene to the Late Holocene. Archaeological findings ranging from Mesolithic flint stones to an about 200 year old ceramics in eolian sediments covering plow horizons and wheel tracks suggest that eolian relocation of sandy material was intensive about 200 years ago. Still unpublished OSL dating underline the intense eolian activity. Recent studies showed that between the 15Th to the 19Th century an iron smelter 5 km to the west of our study site was supplied with charcoal, which was produced in a forest 5 km east to our study site. Our current findings about Late Holocene eolian activity raise the question if this eolian reshaping of the landscape is connected with the operation of the iron smelter either directly by transport or bog iron ore winning or indirectly by population pressure caused by the prospering iron smelter. Our ongoing research indicates, that already for historic land-use off-site effects causing further landscape changes have to be considered.}, language = {en} } @inproceedings{RaabHirschOuimetetal., author = {Raab, Thomas and Hirsch, Florian and Ouimet, William and Dethier, David}, title = {Soil stratigraphy of charcoal kiln remains (CKR) in the Litchfield Hills, CT, USA}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Charcoal kiln relicts (CKRs) are small anthropogenic landforms that are often found in historic mining areas. CKRs have not been a big research topic yet but mainly were studied as by-products of archaeological excavations. In the last years newly available and very accurate Digital Elevation Models (DEMs) based on high-resolution Airborne Laser Scanning (ALS) data have been used to identify these archaeological remains. In addition, findings of several thousands CKRs in the North German Lowland have increased the awareness that historical charcoal production may significantly contribute to Late Holocene landscape change. Besides the archaeological aspect of CKRs, potential impacts of charcoal burning on the ecology of modern soil landscapes and ecosystem processes must be considered. A relatively high density of CKRs is found in the Litchfield Hills nearby the town of West Cornwall, Litchfield County, CT, USA. The CKRs are especially well preserved on slopes of the tributary valleys of the Housatonic River and form little, circular ramparts with diameters normally less than ten meters. First, rough field surveys in Litchfield County in spring 2015 have suggested differences between soils inside and outside the CKR. Soils on the CKR seem to have relatively deep humus-rich and charcoal containing topsoils whereas the topsoils outside the CKR appear typically thinner and less rich in humus. More thorough investigations have been started in autumn 2015 to prove the hypothesis that properties, distribution and development of soils are controlled by archaeological remains of historical charcoal burning. We present preliminary results from our field studies conducted in October 2015. The stratigraphy and the extent of the 26 CKRs were studied using a sedimentological-pedological approach by coring and trenching. Our results indicate that in Litchfield County the CKRs were used twice and in quick succession. Before the second reuse, the rim of the platform was stabilized with boulders. The black topsoils on the CKRs contain residual charcoal and the topsoils are thicker compared to the soil sequences outside of the CKRs.}, language = {en} } @inproceedings{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Missing evidence for the LGM-asynchronity in the Central Spanish Pyrenees in geomorphological, sedimentological and pedological archives}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {According to the state of knowledge, the glacial advances in the Eastern Pyrenees were synchronous with the global LGM during the Late Pleistocene (MIS 2), but the glacial advances in the Central Spanish Pyrenees at MIS 3 were asynchron with the global LGM. Whereas in the Eastern Pyrenees the glacial advances are dated in several well agreeing studies by surface exposure dating of boulders from lateral or terminal moraines, the asynchronity of the Central Spanish Pyrenees was postulated mainly by OSL dating on glacial and fluvial sediments and on radiocarbon dating of pollen from lacustrine deposits. The time difference of about 15 ka raises the question if this is a result of (local) climate factors or owed to failures caused by using several dating techniques on different archives. Anyway, if this time lag is correct, post-LGM formation of soils and sediments from the Late Pleistocene should be different between the Eastern Pyrenees and the Central Spanish Pyrenees. We therefore applied a combined approach of geomorphological, sedimentological and pedological investigations to reconstruct the Late Quaternary landscape development in the Aragon- and Gallego Valley of the Central Spanish Pyrenees. Our study reveals that in both valleys the Pre-Holocene geomorphodynamics on the lateglacial deposits show clear analogies with findings from Pleistocene periglacial landscapes in Central Europe. For MIS 4 and early MIS 3 periglacial processes are proven by loess deposition and formation of solifluction sediments. The glacial sediments, which were dated in earlier studies into mid MIS 3 and counted so far as prove for the asynchronous LGM of the Central Spanish Pyrenees, are covered by periglacial deposits of lateglacial age (14 ka to 11 ka). Surprisingly neither the glacial sediments have pedogenic features that indicate lateglacial soil development, nor do the periglacial deposits show indications for lateglacial soil erosion. Therefore we conclude that soil formation began after the sedimentation of the periglacial deposits, either implying a striking timeframe of more than 15 ka with a stable landscape without any pedogenesis, or the untenability of the MIS 3 age of the glacial sediments. Because we can clearly differentiate further phases of geomorphodynamics during the Holocene with truncated soil profiles and the correlate sediments of soil erosion next to undisturbed soils in periglacial sediments with a lateglacial age, we challenge the thesis of an asynchronous LGM in the Central Spanish Pyrenees and advocate a synchronous LGM in the Gallego- and Aragon valley analog to the Eastern Pyrenees.}, language = {en} } @misc{KruemmelbeinRaab, author = {Kr{\"u}mmelbein, Julia and Raab, Thomas}, title = {Development of soil physical parameters in agricultural reclamation after brown coal mining within the first four years}, series = {Soil and Tillage Research}, volume = {125}, journal = {Soil and Tillage Research}, issn = {0167-1987}, doi = {10.1016/j.still.2012.06.013}, pages = {109 -- 115}, abstract = {In Lusatia, Eastern Germany, the largest German brown coal (lignite) mining area is located. We study agricultural reclamation of open cast brown coal mining areas over the reclamation period of seven years which is in Germany by law the fixed time after which the agricultural areas are resold to farmers and agricultural cooperatives. This paper shows the development of selected soil physical parameters within the first three and four years of reclamation in dependence of organic fertilization, soil tillage and crop rotation. The sandy substrate which is used to reconstruct the post mining landscape is of Saaleian origin, free of recent organic matter and characterized by a homogeneous fabric. During excavation, deposition on stockpiles and levelling, the substrate becomes partly severely compacted due to extensive mechanical stresses. The extent of induced stresses depends on the contact area pressure and on the number of wheel passes of the levelling machinery during these processes. In this context we investigated the effect of different organic soil additives in combination with different crop rotations on the development of soil structure. The experimental area was reconstructed in 2006 and 2007. Directly after site construction, undisturbed soil samples were taken to characterize the initial mechanical and hydraulic properties of the substrate. Three and four years later again undisturbed samples on selected sub plots were taken. In 2010 samples from plots where Alfalfa had been cultivated for three years were collected. The Alfalfa plots were wheeled only twice per year, once for fertilization and once to cut and chaff the biomass. In 2011 samples from plots with annual ploughing and seedbed preparation were taken to show the effects of different crops and tillage intensities in combination with varying soil organic fertilizers on soil structure development. Furthermore, we evaluated the persistence of the loosening effect of subsoiling in dependence on the reclamation practice. First results of our on-going experimental study indicate that initial soil physical properties are very variable on the sub plots. After three and four years, no loosening effect of deep loosening was found anymore. The comparison of the minimum tilled plots (Alfalfa) with the plots of medium tillage intensity showed that with decreasing soil tillage intensity the functionality of the pore system (saturated hydraulic conductivity, air permeability) is improved.}, language = {en} } @inproceedings{VoelkelRaab, author = {V{\"o}lkel, J{\"o}rg and Raab, Thomas}, title = {Effects of uranium mining on the landscape ecology in Eastern Thuringia - Mining dumps and floodplains as sinks and sources of mining related substances}, series = {GeoDarmstadt2010 : Geowissenschaften sichern Zukunft, Frankfurt am Main \& Darmstadt, 10. Oktober - 13. Oktober 2010}, booktitle = {GeoDarmstadt2010 : Geowissenschaften sichern Zukunft, Frankfurt am Main \& Darmstadt, 10. Oktober - 13. Oktober 2010}, publisher = {Deutsche Gesellschaft f{\"u}r Geowissenschaften}, address = {Hannover}, issn = {978-3-510-49219-0}, pages = {573 -- 574}, language = {en} } @inproceedings{KruemmelbeinRaabBensetal., author = {Kr{\"u}mmelbein, Julia and Raab, Thomas and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Soil compaction on an agricultural post-mining recultivation site in Eastern Germany}, series = {EGU General Assembly 2010, held in Vienna, Austria, 02 - 07 May 2010}, booktitle = {EGU General Assembly 2010, held in Vienna, Austria, 02 - 07 May 2010}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @misc{HirschRaab, author = {Hirsch, Florian and Raab, Thomas}, title = {Chronology of Late Quaternary sediments in the Aragonese Pyrenees}, series = {Quaternary International}, volume = {279-280}, journal = {Quaternary International}, doi = {10.1016/j.quaint.2012.08.371}, pages = {S. 202}, abstract = {The Spanish Pyrenees are a type region for Quaternary glaciations. Although the history of glacial research dates back until the first fieldtrips of Charpentier in 1841 and Penck in 1883, the maximum extent of Pleistocene glaciers and the exact chronology is still discussed. Whereas some authors suggest a last glacial maximum (LGM) synchronous to the European Alps, there are also several authors preferring a much earlier Pyrenean LGM. The differing ages for the LGM research using absolute chronological methods reveal the need for a clear stratigraphical and sedimentological approach prior to chronological sampling on Quaternary sediments. Within the scope of the research project post-LGM pedogenesis and geomorphodynamics in the Aragonese Pyrenees (Spain) funded by the DFG (Az RA 931/3-1) Quaternary sediments are differentiated by a combination of multiple field and laboratory methods. This identification of the sediments, combined with the stratigraphic approach forms the basis for the dating of the sediment facies and therefore the prevailing climate conditions at the time of the sedimentation. The studies are mainly conducted in the Aragon- and Gallego Valley, which are both situated in the Aragonese Pyrenees (Spain). We use optically stimulated luminescence (OSL) to date the uppermost unit of the periglacial slope deposits which typically cover glacial sediments in most parts of the study area. There is clear evidence that the glacial and periglacial sediments are partly eroded due to human impact. First OSL and 14C dating reveal relatively young ages for this phase of soil erosion and redepostion on the slopes (approximately 300 a BP).}, language = {en} } @inproceedings{HirschRaabSchuhart, author = {Hirsch, Florian and Raab, Thomas and Schuhart, Stefan}, title = {Quaternary deposits and soil formation in the Arag{\´o}n Pyrenees (Spain) - First results from sedimentological studies}, series = {EGU General Assembly 2010, held in Vienna, Austria, 02 - 07 May 2010}, booktitle = {EGU General Assembly 2010, held in Vienna, Austria, 02 - 07 May 2010}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{KnoopDornackRaab, author = {Knoop, Christine and Dornack, Christina and Raab, Thomas}, title = {Aufbereitung von festen G{\"a}rr{\"u}ckst{\"a}nden aus der Bioabfallverg{\"a}rung zu Bodenhilfsstoffen}, series = {Tagungsband, 6. Wissenschaftskongress Abfall- und Ressourcenwirtschaft, am 10. und 11. M{\"a}rz 2016 in Berlin}, booktitle = {Tagungsband, 6. Wissenschaftskongress Abfall- und Ressourcenwirtschaft, am 10. und 11. M{\"a}rz 2016 in Berlin}, publisher = {Deutsche Gesellschaft f{\"u}r Abfallwirtschaft e.V.}, address = {Berlin}, isbn = {978-3-00-052365-6}, abstract = {Mit der Novellierung des Erneuerbare-Energien-Gesetzes (EEG) im Jahr 2014 und der fl{\"a}chendeckenden Einf{\"u}hrung der getrennten Erfassung der Bioabf{\"a}lle seit 2015 (Kreislaufwirtschaftsgesetz 2012) wurden deutliche Anreize f{\"u}r die Verwendung von organischen Reststoffen zur Biogaserzeugung gesetzt. Ein verst{\"a}rkter Einsatz von Bioabf{\"a}llen als G{\"a}rsubstrat ist zu erwarten. Die festen G{\"a}rr{\"u}ckst{\"a}nde sollen im Sinne der Kreislaufwirtschaft als organischer Bodenverbesserer auf landwirtschaftliche Fl{\"a}chen r{\"u}ckgef{\"u}hrt werden. Die vorgestellte Forschungsarbeit dient der Untersuchung von Aufbereitungsm{\"o}glichkeiten der festen G{\"a}rr{\"u}ckst{\"a}nde aus der Bioabfallverg{\"a}rung und soll insbesondere die Zusammenh{\"a}nge zwischen Verg{\"a}rung, Aufbereitung und anschließender Bodenwirkung klarstellen.}, language = {de} } @inproceedings{KnoopDietrichHeinrichetal., author = {Knoop, Christine and Dietrich, Nils and Heinrich, Martina and Dornack, Christina and Raab, Thomas}, title = {Conditioning of residues from anaerobic digestion of municipal organic waste with regard to its use as soil amendment}, series = {24th European Biomass Conference and Exhibition, Amsterdam, 6-9 June 2016, Book of abstracts}, booktitle = {24th European Biomass Conference and Exhibition, Amsterdam, 6-9 June 2016, Book of abstracts}, address = {Amsterdam}, pages = {S. 37}, abstract = {The structural degradation of agricultural soils is an increasing problem of our times caused by intense land use. The treatment of soils with organic amendments shall maintain and improve long-term soil fertility. Solid residues from anaerobic digestion of municipal organic waste are rich in nutrients and organic matter and have a promising potential to be used as soil amendment. Less is known about characteristics of solid residues from organic waste digestion as composting of organic waste materials is still common. Before digestion residues can be applied to soils they need to be conditioned as they have a high impurity content (especially plastic bags and packaging materials) and need to meet the requirements of German regulation on biowaste (Bioabfallverordnung). Our research is investigating on conditioning methods for solid residues of municipal organic waste digestion with regard to the potential effect of products on soil structure, soil water regime and nutrient supply. Investigations have been made with different digestion residues from lab scale, semi-industrial and industrial scale biogas plants. Conditioning methods have been tested using our in-lab treatment facilities consisting of a drying, composting, sieving and pelletizing unit. Preliminary results show that drying and pelletizing measures influence hydrophobicity of digestion residues. As water repellency directly affects water flow and soil moisture this is a determining parameter regarding the amendment performance of conditioned products.}, language = {en} } @inproceedings{DietrichKnoopRaabetal., author = {Dietrich, Nils and Knoop, Christine and Raab, Thomas and Kr{\"u}mmelbein, Julia}, title = {Influence of soil amendments made from digestate on soil physics and the growth of spring wheat}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Every year 13 million tons of organic wastes accumulate in Germany. These wastes are a potential alternative for the production of energy in biogas plants, especially because the financial subventions for the cultivation of renewable resources for energy production were omitted in 2014. The production of energy from biomass and organic wastes in biogas plants results in the accumulation of digestate and therefore causes the need for a sustainable strategy of the utilization of these residues. Within the scope of the BMBF-funded project 'VeNGA - Investigations for recovery and nutrient use as well as soil and plant-related effects of digestate from waste fermentation' the application of processed digestate as soil amendments is examined. Therefore we tested four different mechanical treatment processes (rolled pellets, pressed pellets, shredded compost and sieved compost) to produce soil amendments from digestate with regard to their impact on soil physics, soil chemistry and the interactions between plants and soil. Pot experiments with soil amendments were performed in the greenhouse experiment with spring wheat and in field trials with millet, mustard and forage rye. After the first year of the experiment, preliminary results indicate a positive effect of the sieved compost and the rolled pellets on biomass yield of spring wheat as compared to the other variations. First results from the Investigation on soil physics show that rolled pellets have a positive effect on the soil properties by influencing size and distribution of pores resulting in an increased water holding capacity. Further ongoing enhancements of the physical and chemical properties of the soil amendments indicate promising results regarding the ecological effects by increased root growth of spring wheat.}, language = {en} } @inproceedings{KnoopDietrichHeinrichetal., author = {Knoop, Christine and Dietrich, Nils and Heinrich, Martina and Dornack, Christina and Raab, Thomas}, title = {Conditioning of solid residues from anaerobic digestion of municipal organic waste with regard to its use as soil amendment}, series = {Venice 2016, 6th International Symposium on Energy from Biomass and Waste 2016, Venice, Italy, 14-17 November 2016}, booktitle = {Venice 2016, 6th International Symposium on Energy from Biomass and Waste 2016, Venice, Italy, 14-17 November 2016}, publisher = {CISA Publisher}, address = {Padova}, isbn = {978-88-6265-007-6}, abstract = {To prevent structural degradation of agricultural soils and to maintain and improve long-term soil fertility the application of organic soil amendments is a common measure. Solid residues from anaerobic digestion of organic household waste are rich in nutrients and organic matter and have a promising potential to be used as soil amendment. However, less is known about characteristics of solid residues from organic household waste digestion and the effects of conditioning measures on substrate quality and amendment performance in soil. Before digestion residues can be applied to agricultural soils in Germany, they need to meet the requirements of Biowaste Ordinance (BioAbfV). Conditioning mainly focuses on reducing impurity content (especially plastic bags and packaging materials), securing hygiene of residues, reducing water content and developing tradable products. We studied the effect of drying, composting, sieving and pelletisation on final product characteristics. Investigations have been examined with solid digestates, composted digestates and pelletized digestates originating from the same organic waste input. Samples were retrieved from a semi-industrial biogas plant of the company GICON (Gemany) and a composting plant of the company Becker Umweltdienste (Germany). Investigations show that characteristics of organic household waste undergo a clear change during anaerobic digestion and subsequent composting of the digestate. The final composted product will mainly contribute to long-term development of soil fertiliy. The improvement of waste quality is the most important measure to ensure the provision of high-quality soil amendments. Investigations on the impact of digestate products on soil-water-regime however did not show a clear advantage of pelletized products over loose material.}, language = {en} } @inproceedings{KapplerKaiserKuesteretal., author = {Kappler, Christoph and Kaiser, Knut and K{\"u}ster, Mathias and F{\"u}lling, Alexander and Bens, Oliver and Raab, Thomas}, title = {Evaluating the timing of late Quaternary geomorphodynamics and soil formation: a review of geochronological data from northeastern Germany}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{SchwabBrauerBłaszkiewiczetal., author = {Schwab, Markus and Brauer, Achim and Błaszkiewicz, Mirosław and Blume, Theresa and Itzerott, Sibylle and Raab, Thomas and Wilmking, Martin}, title = {ICLEA - The Virtual Institute of Integrated Climate and Landscape Evolution Analyses}, series = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, booktitle = {European Geosciences Union, General Assembly 2016, Vienna, Austria, 17 April - 22 May 2016}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{HirschBauriegelBonhageetal., author = {Hirsch, Florian and Bauriegel, Albrecht and Bonhage, Alexander and Schneider, Anna and Raab, Thomas}, title = {Occurrence, micromorphology, and soil chemistry of Fuchserden (Rhodic Arenosols) on sandy deposits in northeastern Germany}, series = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {In the sandy deposits from the Late Pleistocene in the Northern European lowlands, the local appearance of red subsoils emerges the question of their formation and palaeoenvironmental significance. According to the WRB this soil is classified as Rhodic Arenosols, but in the German Guidelines for Soil Mapping this soil is still unconsidered because the age and genesis is unclear. Due to the intense red subsoil, the working title of this soil is 'Fuchserde'. Whereas rubefication is a characteristic feature of soils in regions with warm and dry summers like in the Mediterranean, the occurrence of red subsoil horizons containing hematite in soils in northeastern Germany is not an indicator for tropic or Mediterranean climate conditions. Already the appearance of Fuchserden on sandy deposits from the last glaciation objects earlier theories that consider these soils as a relictic soil formation from the last interglacial or even the Palaeogene or Neogene. To characterize the genesis of the Fuchserden, we focused on four different study sites in northeastern Germany. We present our findings from soil micromorphology and the identification of the iron(hydr)oxides by FTIR. Our results give new insights on the development of the Fuchserden and the importance of lateral input of iron for their genesis.}, language = {en} } @inproceedings{SchwabBrauerBłaszkiewiczetal., author = {Schwab, Markus and Brauer, Achim and Błaszkiewicz, Mirosław and Blume, Theresa and Raab, Thomas and Wilmking, Martin}, title = {ICLEA - The Virtual Institute of Integrated Climate and Landscape Evolution Analyses}, series = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Since 2012, the partner of the virtual institute ICLEA from Germany and Poland view on past changes as natural experiments as a guidebook for better anticipation of future changes and their impacts. Since the natural evolution became increasingly superimposed by human impacts since the Neolithic we include an in-depth discussion of impacts of climate and environment change on societies and vice versa. Understanding causes and effects of present-day climate change on landscapes and the human habitat faces two main challenges, (I) too short time series of instrumental observation that do not cover the full range of variability since mechanisms of climate change and landscape evolution work on different time scales, which often not susceptible to human perception, and, (II) distinct regional differences due to the location with respect to oceanic/continental climatic influences, the geological underground, and the history and intensity of anthropogenic land-use. Both challenges are central for the ICLEA research strategy and demand a high degree of interdisciplinary. In particular, the need to link observations and measurements of ongoing changes with information from the past taken from natural archives requires joint work of scientists with very different time perspectives. On the one hand, scientists that work at geological time scales of thousands and more years and, on the other hand, those observing and investigating recent processes at short time scales. Five complementary work packages (WP) are established according to the key research aspects: WP 1 focused on monitoring mainly hydrology and soil moisture as well as meteorological parameters. WP 2 is linking present day and future monitoring data with the most recent past through analyzing satellite images. This WP will further provide larger spatial scales. WP 3-5 are focused on different natural archives to obtain a broad variety of high quality proxy data. Tree rings provide sub-seasonal data for the last centuries up to few millennia, varved lake sediments cover the entire research time interval at seasonal to decadal resolution and palaeosoils and geomorphological features also cover the entire period but not continuously and with lower resolution. Complementary information, like climate, tree ecophysiological and limnological data etc., are provided by cooperation with associated partners. In these five WP the partner focusing their research capacities and expertise in ICLEA. We offers young researchers an interdisciplinary and structured education and promote their early independence through coaching and mentoring. Postdoctoral rotation positions promote dissemination of information and expertise between disciplines. ICLEA results are published in about 80 peer reviewed scientific articles and available for the scientific community. The long-term mission of the Virtual Institute is to provide a substantiated data basis for sustained environmental maintenance based on a profound process understanding at all relevant time scales. Aim is to explore processes of climate and landscape evolution in an historical cultural landscape extending from northeastern Germany into northwestern Poland. The northern-central European lowlands is facilitated as a natural laboratory providing an ideal case for utilizing a systematic and holistic approach. Further information about ICLEA: www.iclea.de}, language = {en} }