@misc{KotlarskiSzaboHerreraetal., author = {Kotlarski, Sven and Szabo, Peter and Herrera, Sixto and R{\"a}ty, Olle and Keuler, Klaus and Soares, Pedro and Cardoso, Rita M. and Bosshard, Thomas and Pag{\´e}, Christian and Boberg, Fredrik and Guti{\´e}rrez, Jos{\´e} and Isotta, Francesco and Jaczewski, Adam and Kreienkamp, Frank and Liniger, Mark and Lussana, Cristian and Pianko-Kluczyńska, Krystyna}, title = {Observational uncertainty and regional climate model evaluation: A pan-European perspective}, series = {International journal of climatology}, volume = {39}, journal = {International journal of climatology}, number = {9}, issn = {1097-0088}, doi = {10.1002/joc.5249}, pages = {3730 -- 3749}, language = {en} } @misc{BiedermannCzeckayGeyeretal., author = {Biedermann, Till and Czeckay, Pasquale and Geyer, Thomas and Kameier, Frank and Paschereit, Christian Oliver}, title = {Noise Source Identification of Aerofoils Subjected to Leading Edge Serrations using Phased Array Beamforming}, series = {24th AIAA/CEAS Aeroacoustics Conference 2018, Atlanta, USA, 25 June - 29 June 2018, (AIAA 2018-3794)}, journal = {24th AIAA/CEAS Aeroacoustics Conference 2018, Atlanta, USA, 25 June - 29 June 2018, (AIAA 2018-3794)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-560-9}, language = {en} } @misc{BiedermannCzeckayGeyeretal., author = {Biedermann, Till and Czeckay, Pasquale and Geyer, Thomas and Kameier, Frank and Paschereit, Christian Oliver}, title = {Effect of Inflow Conditions on the Noise Reduction Through Leading Edge Serrations}, series = {AIAA Journal}, volume = {57}, journal = {AIAA Journal}, number = {9}, issn = {1533-385X}, doi = {10.2514/1.J057831}, language = {en} } @inproceedings{RaabRaabSchneideretal., author = {Raab, Alexandra and Raab, Thomas and Schneider, Anna and Hirsch, Florian and Takla, Melanie and Nicolay, Alexander and Bonhage, Alexander and M{\"u}ller, Frank and Heußner, Karl-Uwe and R{\"o}sler, Horst}, title = {Reconstructing anthropogenic landscape transformation in the surroundings of the ironwork Peitz (SE Brandenburg, Germany) - 16th to mid-19th centuries}, series = {4th International Landscape Archaeology Conference, Uppsala, 22nd - 25th August 2016}, booktitle = {4th International Landscape Archaeology Conference, Uppsala, 22nd - 25th August 2016}, publisher = {Department of archaeology and ancient history, Uppsala university,}, address = {Uppsala}, pages = {S. 152}, abstract = {Various sources provide information about land use history and landscape transformation. For a variety of reasons, the quality of information differs and is often discontinuous or incomplete. In this interdisciplinary study we take advantage of comprehensive archaeological data gathered by large-scale excavations that were necessary because of opencast lignite mining in Lusatia, Brandenburg, Germany. By using a GIS we integrate these archaeological findings with results from archival and literature studies, from historical maps, from landforms and soils as well as from analyses of shaded-relief maps derived from up-to-date LiDAR data. The long-term aim is to develop a palaeoenvironmental model and thus to reconstruct landscape changes caused by human activities. The focus of the study is the Peitz ironwork in SE Brandenburg, which was a large consumer of commodities for about 300 years. During the time it operated, extensive transformations are supposed to have affected the landscape in the vicinity because of wood consumption and especially charcoal production. Digital datasets about forested areas for different timespans reconstructed from historical maps were made available. In combination with dendrochronological dating of charred trees, the spatiotemporal dimension of charcoal kilns was determined. Also, sites of former bog iron ore mining could be identified. Moreover, the different sources contain further information about other forms of land uses such as agriculture, pastoralism and even viticulture. In conclusion we can highlight that the mosaic of past land use systems is different from the modern structure but that major changes in the forests have been retained.}, language = {en} } @misc{OrwatRaabeBuchmannetal., author = {Orwat, Carsten and Raabe, Oliver and Buchmann, Erik and Anandasivam, Arun and Freytag, Johan-Christoph and Helberger, Natali and Ishii, Kei and Lutterbeck, Bernd and Neumann, Dirk and Otter, Thomas and Pallas, Frank and Reussner, Ralf and Sester, Peter and Weber, Karsten and Werle, Raymund}, title = {Software als Institution und ihre Gestaltbarkeit}, doi = {DOI:10.1007/s00287-009-0404-z}, language = {de} } @inproceedings{TaklaMuellerRoesleretal., author = {Takla, Melanie and M{\"u}ller, Frank and R{\"o}sler, Horst and Raab, Alexandra and Raab, Thomas}, title = {Forestry and charcoal burning in the vicinity of the ironwork Peitz (South Brandenburg, Germany) - What do we know from historical and archaeological data?}, 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 = {51}, language = {en} } @inproceedings{BartholomePasternakFeldmannetal., author = {Bartholom{\´e}, Susanne Elisabeth and Pasternak, Hartmut and Feldmann, Markus and Geßler, Achim and Ummenhofer, Thomas and G{\"o}tz, Frank}, title = {Kleben von CFK-Lamellen im Stahlbau}, series = {DVS Congress 2015, Große Schweißtechnische Tagung, N{\"u}rnberg}, booktitle = {DVS Congress 2015, Große Schweißtechnische Tagung, N{\"u}rnberg}, publisher = {DVS Media}, address = {D{\"u}sseldorf}, isbn = {978-3-945023-46-4}, pages = {927 -- 932}, language = {de} } @techreport{VaterLangendoerferBasmeretal., author = {Vater, Frank and Langend{\"o}rfer, Peter and Basmer, Thomas and Stecklina, Oliver}, title = {Abschlussbericht Trusted Sensor Node}, language = {de} } @misc{BusseFischerGebaueretal., author = {Busse, Ralph-Peter and Fischer, Gert and Gebauer, Gert and H{\"o}fler, Frank and Junker, Sabine and Kramer, Thomas and Opperskalski, Stephan and Potthoff, Ulrich and Remus, Ricardo and Schlamkow, Christian and Schmidt, Wolfgang and Scobel, Ekkehard and Stopp, Horst and Strangfeld, Peter and Trang, Ngyen Thi Thu and V{\"o}lker, Eduard and Vukorep, Ilija and Weidhase, Frieder and Winzer, Reinhard}, title = {Floating Architecture - Construction on and near water}, editor = {Stopp, Horst and Strangfeld, Peter}, publisher = {LIT-Verlag}, address = {Berlin}, isbn = {978-3-643-90910-7}, pages = {134}, abstract = {The publishers are receiving more and more inquiries about the topic "Floating Architecture", particularly about technical details, water chemistry, as well as ice and wave problems. Since there is a lack of technical literature on this topic, most students working on projects or theses related to this topic send their inquiries. A time of general and quick changes results in a large number of daily publications. Therefore it is difficult to understand why there is a lack of lit-erature about floating structures. One has to consider that sea levels will continue to rise and consequently a larger number of people will have to live on the surface of the sea. Obviously, some expert knowledge is required which needs a longer period of time to be gained through scientific advancements and experience. The publishers, who have been dealing with the topic of floating houses for some years, are grateful to the authors for their agreement to allow the publication of their papers on floating architecture. These papers were mainly prepared for two conferences on floating architecture held in the study centre of the IBA building, Großr{\"a}schen. Therefore, the reader should know that, along with the usual papers, only a selection of self-explaining transparencies is shown in order to meet the printing requirements. The included list of both the authors and their addresses makes it easy for interested people to send any inquiries to them. A short introduction as well as an outlook at the end of each paper is meant to draw attention to current events in order to be able to promptly identify opportunities and risks connected with living on the water.}, language = {en} } @inproceedings{TaklaMuellerRoesleretal., author = {Takla, Melanie and M{\"u}ller, Frank and R{\"o}sler, Horst and Raab, Alexandra and Raab, Thomas}, title = {Forestry and charcoal burning in the vicinity of the ironwork Peitz (South Brandenburg, Germany) - What do we know from historical and archaeological data?}, 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 former royal forest districts around Peitz (South Brandenburg, Germany) were used to produce charcoal for the ironwork Peitz (1554 to 1856). More than 800 archaeologically excavated ground plans of charcoal kilns give evidence of the burning activity in the study area "J{\"a}nschwalde Heide" which is only a small part of the whole forest district. The study area in the apron of the active lignite mine J{\"a}nschwalde comprises the royal forest "J{\"a}nschwalder Heide" and the surrounding community forests. Our study approach combines archaeological research, a GIS-based approach (historical maps, airborne laser scanning (ALS) data, etc.) and archival studies.}, language = {en} } @inproceedings{HenzeMoenicke, author = {Henze, Frank and M{\"o}nicke, Thomas}, title = {Ein modulares OpenSource GIS f{\"u}r arch{\"a}ologische und baugeschichtliche Forschungen}, series = {Entwicklerforum Geoinformationstechnik 2006 - Junge Wissenschaftler forschen, 27./28. Juli 2006}, booktitle = {Entwicklerforum Geoinformationstechnik 2006 - Junge Wissenschaftler forschen, 27./28. Juli 2006}, editor = {Clemen, Christian}, publisher = {Shaker}, address = {Aachen}, isbn = {3-8322-5294-0}, pages = {76}, language = {de} } @misc{BartholomePasternakFeldmannetal., author = {Bartholom{\´e}, Susanne Elisabeth and Pasternak, Hartmut and Feldmann, Markus and Geßler, Achim and Ummenhofer, Thomas and G{\"o}tz, Frank}, title = {Verst{\"a}rkung von Stahlkonstruktionen durch geklebte CFK-Lamellen}, series = {20. DASt-Forschungskolloquium in Essen, 08./09. M{\"a}rz 2016}, journal = {20. DASt-Forschungskolloquium in Essen, 08./09. M{\"a}rz 2016}, publisher = {Frehner Consulting}, address = {F{\"u}ssen}, isbn = {978-3-941687-19-6}, pages = {89 -- 94}, language = {de} } @misc{StecklinaVaterBasmeretal., author = {Stecklina, Oliver and Vater, Frank and Basmer, Thomas and Bergmann, Erik and Menzel, Hannes}, title = {Hybrid Simulation Environment for Rapid MSP430 System Design Test and Validation Using MSPSim and SystemC}, doi = {10.1109/DDECS.2011.5783073}, language = {en} } @techreport{VaterLangendoerferBasmeretal., author = {Vater, Frank and Langend{\"o}rfer, Peter and Basmer, Thomas and Stecklina, Oliver}, title = {User Manual Trusted Sensor Node}, language = {en} } @misc{WagnerKuehhornWeissetal., author = {Wagner, Frank and K{\"u}hhorn, Arnold and Weiss, Thomas and Otto, Dierk}, title = {Influence of different parametrizations on the optimum design of a high pressure turbine blade firtree}, series = {ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13-17, 2016}, journal = {ASME Turbo Expo 2016, Turbomachinery Technical Conference and Exposition, Volume 7A, Structures and Dynamics, Seoul, South Korea, June 13-17, 2016}, publisher = {ASME}, address = {New York, NY}, isbn = {978-0-7918-4983-5}, doi = {10.1115/GT2016-56749}, pages = {11}, abstract = {Today the design processes in the aero industry face many challenges. Apart from automation itself, a suitable parametric geometry setup plays a significant role in making workflows usable for optimization. At the same time there are tough requirements against the parametric model. For the lowest number of possible parameters, which should be intuitively ascertainable, a high flexibility has to be ensured. Within the parameter range an acceptable stability is necessary. Under these constraints the creation of such parametric models is a challenge, which should not be underestimated especially for a complex geometry. In this work different kinds of parametrization with different levels of complexity will be introduced and compared. Thereby several geometry elements will be used to handle the critical regions of the geometry. In the simplest case a combination of lines and arcs will be applied. These will be replaced by superior elements like a double arc construct or different formulations of b-splines. There will be an additional focus on the variation of spline degree and control points. To guarantee consistency a set of general parameters will be used next to the specific ones at the critical regions. The different parameter boundaries have a influence on the possible geometries and should therefore be tested separately before an optimization run.}, language = {en} } @misc{JohansenRudolphJensenetal., author = {Johansen, Tom K. and Rudolph, Matthias and Jensen, Thomas and Kraemer, Tomas and Weimann, Nils and Schnieder, Frank and Krozer, Viktor and Heinrich, Wolfgang}, title = {Modeling of InP HBTs in Transferred-Substrate Technology for Millimeter-Wave Applications}, series = {Microwave Integrated Circuits Conference (EuMIC), 2013, 8th European, 6-8 October 2013 Nuremberg, Germany}, journal = {Microwave Integrated Circuits Conference (EuMIC), 2013, 8th European, 6-8 October 2013 Nuremberg, Germany}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-2-87487-032-3}, pages = {280 -- 283}, language = {en} } @misc{BoetzlSponslerAlbrechtetal., author = {Boetzl, Fabian and Sponsler, Douglas and Albrecht, Matthias and Bat{\´a}ry, P{\´e}ter and Birkhofer, Klaus and Knapp, Michal and Krauss, Jochen and Maas, Bea and Martin, Emily A. and Sirami, Cl{\´e}lia and Sutter, Louis and Bertrand, Colette and Baillod, Aliette and Bota, Gerard and Bretagnolle, Vincent and Brotons, Llu{\´i}s and Frank, Thomas and Fusser, Moritz and Giralt, David and Gonz{\´a}lez, Ezequiel and Hof, Anouschka and Luka, Henryk and Marrec, Ronan and Nash, Michael and Ng, Katherina and Plantegenest, Manuel and Poulin, Brigitte and Siriwardena, Gavin and Zubair-Anjum, Muhammad and Entling, Martin and Steffan-Dewenter, Ingolf and Schirmel, Jens}, title = {Distance functions of carabids in crop fields depend on functional traits, crop type and adjacent habitat: a synthesis}, series = {Proceedings Royal Society. Series B, Biological sciences}, volume = {Vol. 291}, journal = {Proceedings Royal Society. Series B, Biological sciences}, issn = {1471-2954}, doi = {10.1098/rspb.2023.2383}, pages = {1 -- 10}, language = {en} } @misc{RaabHinzGerwinetal., author = {Raab, Thomas and Hinz, Christoph and Gerwin, Werner and Lehmkuhl, Frank}, title = {Editorial for the Special Issue "Anthropogenic Geomorphology - Geomorphology in the Anthropocene"}, series = {Geomorphology}, volume = {422}, journal = {Geomorphology}, issn = {0169-555X}, doi = {10.1016/j.geomorph.2022.108528}, language = {en} } @inproceedings{SutLohmannRepmannRaab, author = {Sut-Lohmann, Magdalena and Repmann, Frank and Raab, Thomas}, title = {Release of iron-cyanide complexes form contaminated soils - Batch and column experiments on substrates from Manufactured Gas Plant (MGP) site}, 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 = {Soils of former Manufactured Gas Plants (MGPs) are often contaminated with iron-cyanide (Fe-CN) complexes that originate from gas purification process. Cyanide is a potentially toxic substance and its presence in soil and groundwater may cause risk for human health as well as for the environment. MGPs were commonly built on the city suburban areas, which have spread ever since. Nowadays, these sites are typically located in inner cities, causing environmental thread, due to the leaching of pollutants. More recently, columns and batch experiments have been used to study fate and mobility of contaminants is soil. The release of iron-cyanide complexes under unsaturated flow conditions was evaluated with eight columns of 30 cm length and a diameter of 5,4 cm. Cyanide concentrations in the collected leachates were measured with Flow Injection Analysis (FIA). Additionally pH, electrical conductivity (EC) and various ion concentrations were determined. In order to compare the release of Fe-CN complexes in saturated conditions a batch experiment was conducted, where in defined time intervals, 1 ml of the extract water phase was analyzed for CN concentration. Study revealed an analogous trend of cyanide release in both experiments indicating primarily the release of formerly dissolved phase (hexacyanoferrates) followed by continual dissolution of ferric ferrocyanide. We conclude that batch experiments, conducted prior to column analysis, can serve as preliminary prediction of the water soluble cyanide fraction under unsaturated conditions.}, language = {en} } @misc{DuemigVesteHagedornetal., author = {D{\"u}mig, Alexander and Veste, Maik and Hagedorn, Frank and Fischer, Thomas and Lange, Philipp and Spr{\"o}te, Roland and K{\"o}gel-Knabner, Ingrid}, title = {Biological soil crusts on initial soils: organic carbon dynamics and chemistry under temperate climatic conditions}, series = {Biogeosciences Discussion}, volume = {10}, journal = {Biogeosciences Discussion}, number = {1}, issn = {1810-6285}, pages = {851 -- 894}, language = {en} } @misc{DuemigVesteHagedornetal., author = {D{\"u}mig, Alexander and Veste, Maik and Hagedorn, Frank and Fischer, Thomas and Lange, Philipp and Spr{\"o}te, Roland and K{\"o}gel-Knabner, Ingrid}, title = {Organic matter from biological soil crusts induces the initial formation of sandy temperate soils}, series = {Catena}, volume = {122}, journal = {Catena}, doi = {10.1016/j.catena.2014.06.011}, pages = {196 -- 208}, abstract = {Different development stages of algae-dominated and moss-dominated biological soil crusts (BSCs) were sampled on a natural sand dune (b17 years old) and on an experimental sand dune (b8 years old) along a catena, including gradients of vegetation cover, location on the slope, as well as composition and thickness of BSC organisms in northeastern Germany. The accumulation of BSC-derived organic carbon (OC)was determined for bulk materials and fractions less than 63 μm. The OC composition was characterized by solid-state 13C NMR spectroscopy and the carbohydrate-C signature. 14C contents were determined to assess the origin and dynamics of OC. From the radiocarbon contents, two OC pools were differentiated: recent BSC-derived and lignite-derived "old" OC. Downward movement of OC into the underlying substratewas found only undermoss-dominated BSCs at the old sand dune. BSC-derived OC was mainly composed of carbohydrate-C and, to a lesser extent, alkyl C and N-alkyl C, with considerably higher contributions of alkyl C in the young dune, indicating differences in the composition of extracellular polymeric substances produced by the BSCs with age. This is consistent with higher proportions of water-soluble OC of moss-dominated BSCs at the old dune, which is leached in the underlying substrate and initiates soil formation. Because of the channeling effect of mosses, OC depth translocation along with suspended colloidal substances contribute to OC accumulation in substrates.}, language = {en} } @misc{SutLohmannRepmannRaab, author = {Sut-Lohmann, Magdalena and Repmann, Frank and Raab, Thomas}, title = {Retardation of iron-cyanide complexes in the soil of a former manufactured gas plant site}, series = {Journal of Environmental Science and Health, Part A}, volume = {50}, journal = {Journal of Environmental Science and Health, Part A}, number = {3}, issn = {1532-4117}, doi = {10.1080/10934529.2015.981116}, pages = {282 -- 291}, abstract = {The soil in the vicinities of former Manufactured Gas Plant (MGP) sites is commonly contaminated with iron-cyanide complexes (ferric ferrocyanide). The phenomenon of cyanide mobility in soil, according to the literature, is mainly governed by the dissolution and precipitation of ferric ferrocyanide, which is only slightly soluble (<1 mg L!'1) under acidic conditions. In this paper, retention properties of the sandy loam soil and the potential vertical movement of the solid iron-cyanide complexes, co-existing with the dissolution, sorption and precipitation reactions were investigated. Preliminary research conducted on a former MGP site implied colloidal transport of ferric ferricyanide from the initial deposition in the wastes layer towards the sandy loam material (secondary accumulation), which possibly retarded the mobility of cyanide (CN). A series of batch and column experiments were applied in order to investigate the retardation of iron-cyanide complexes by the sandy loam soil. Batch experiments revealed that in circumneutral pH conditions sandy loam material decreases the potassium ferro- and ferricyanide concentration. In column experiments a minor reduction in CN concentration was observed prior to addition of iron sulfide (FeS) layer, which induced the formation of the Prussian blue colloids in circumneutral pH conditions. Precipitated solid iron-cyanide complexes were mechanically filtered by the coherent structure of the investigated soil. Additionally, the reduction of the CN concentration of the percolation solutions by the sandy loam soil was presumably induced due to the formation of potassium manganese iron-cyanide (K2Mn[Fe(CN)6]).}, language = {en} } @misc{DimitrovaRepmannRaabetal., author = {Dimitrova, Tsvetelina and Repmann, Frank and Raab, Thomas and Freese, Dirk}, title = {Uptake of ferrocyanide in willow and poplar trees in a long term greenhouse experiment}, series = {Ecotoxicology}, volume = {24}, journal = {Ecotoxicology}, number = {3}, issn = {1573-3017}, doi = {10.1007/s10646-014-1398-0}, pages = {510}, abstract = {Phytoremediation of sites contaminated with iron cyanides can be performed using poplar and willow trees. Poplar and willow trees were grown in potting substrate spiked with ferrocyanide concentrations of up to 2,000 mg kg-1 for 4 and 8 weeks respectively. Soil solution and leaf tissue of different age were sampled for total cyanide analysis every week. Chlorophyll content in the leaves was determined to quantify cyanide toxicity. Results showed that cyanide in the soil solution of spiked soils differed between treatments and on weekly basis and ranged from 0.5 to 1,200 mg l-1. The maximum cyanide content in willow and poplar leaves was 518 mg kg-1 fresh weight (FW) and 148 mg kg-1 FW respectively. Cyanide accumulated in the leaves increased linearly with increasing cyanide concentration in the soil solution. On the long term, significantly more cyanide was accumulated in old leaf tissue than in young tissue. Chlorophyll content in poplar decreased linearly with increasing cyanide in the soil solution and in leaf tissue, and over time. The inhibitory concentration (IC50) value for poplars after 4 weeks of exposure was 173 mg l-1 and for willow after 8 weeks of exposure—768 mg l-1. Results show that willows tolerate much more cyanide and over a longer period than poplars, making them very appropriate for remediating sites highly contaminated with iron cyanides.}, language = {en} } @misc{SutLohmannRepmannRaab, author = {Sut-Lohmann, Magdalena and Repmann, Frank and Raab, Thomas}, title = {Stability of Prussian Blue in Soils of a Former Manufactured Gas Plant Site}, series = {Soil and Sediment Contamination}, volume = {23}, journal = {Soil and Sediment Contamination}, number = {5}, issn = {1549-7887}, doi = {10.1080/15320383.2014.839626}, pages = {504 -- 522}, abstract = {Soil contamination with iron-cyanide complexes is a common problem at former manufactured gas plant (MGP) sites. Dissolution of the cyanide, from Prussian Blue (ferric ferrocyanide), creates an environmental hazard, whereas the risk of groundwater contamination depends on the stability of dissolved iron-cyanide complexes. Lack of a standard leaching method to determine the water-soluble (plant-available) cyanide fraction generates potential limitations for implementing remediation strategies like phytoremediation. Applicability of neutral solution extraction to determine the water-soluble cyanide fraction and the stability of Prussian Blue in surface and near-surface soils of an MGP site in Cottbus, undersaturated and unsaturated water conditions, was studied in column leaching and batch extraction experiments. MGP soils used in the long-term tests varied according to the pH (5.0-7.7) and the total cyanide content (40-1718 mg kg-1). Column leaching, after four months of percolation, still yielded effluent concentrations exceeding the German drinking water limit (> 50 μg L-1) and the solubility of Prussian Blue reported in the literature (< 1 mg L-1) from both alkaline and acidic soils. Long-term (1344 h) extraction of MGP soils with distilled water was sufficient to dissolve 97\% of the total cyanide from the slightly alkaline soils and up to 78\% from the acidic soils. Both experiments revealed that dissolution of ferric ferrocyanide under circum-neutral pH and oxic water conditions is a function of time, where the released amount is dependent on the soil pH and total cyanide content. Unexpectedly high and continuous solubility of Prussian Blue, both in acidic and slightly alkaline MGP soils, implies the need to introduce an additional cyanide fraction ("readily soluble fraction") to improve and specify cyanide leaching methods. Long-term extraction of cyanide-contaminated soil in neutral solution seems to be a promising approach to evaluate the potential hazard of groundwater pollution at the MGP sites.}, language = {en} } @misc{GerwinRepmannSchaafetal., author = {Gerwin, Werner and Repmann, Frank and Schaaf, Wolfgang and Raab, Thomas}, title = {Bodenver{\"a}nderungen durch Waldbr{\"a}nde - Stoffvorr{\"a}te und Stoffverlagerungen}, series = {Jahrestagung der DBG 2022 "Grenzen {\"u}berwinden, Skalen {\"u}berschreiten" 5. - 8. September 2022 in Trier}, journal = {Jahrestagung der DBG 2022 "Grenzen {\"u}berwinden, Skalen {\"u}berschreiten" 5. - 8. September 2022 in Trier}, pages = {48}, abstract = {Die zur{\"u}ckliegenden trocken-heißen Sommer haben im S{\"u}den Brandenburgs zu zahlreichen Br{\"a}nden in den dominierenden Kiefernw{\"a}ldern gef{\"u}hrt, einige davon mit katastrophalen Ausmaßen. Dazu geh{\"o}ren die extremen Brandereignisse 2018 bei Treuenbrietzen sowie 2019 bei J{\"u}terbog und Lieberose, die zusammen weit {\"u}ber 1000 ha Waldfl{\"a}che zerst{\"o}rt und dabei auch Ver{\"a}nderungen der betroffenen Waldb{\"o}den verursacht haben. Das seit Mai 2020 von der FNR gef{\"o}rderte Verbundvorhaben Pyrophob befasst sich mit den Auswirkungen von Waldbr{\"a}nden im S{\"u}den Brandenburgs auf die Wald{\"o}kosysteme und mit waldbaulichen Maßnahmen, die mittelfristig zu einer Verringerung der Brandanf{\"a}lligkeit der W{\"a}lder beitragen sollen. Im Rahmen des auf eine f{\"u}nfj{\"a}hrige Laufzeit ausgelegten Verbundvorhabens finden bodenkundliche Untersuchungen auf zw{\"o}lf Versuchsfl{\"a}chen bei Treuenbrietzen und J{\"u}terbog statt. An beiden Standorten werden unverbrannte Referenzfl{\"a}chen mit einbezogen. Erg{\"a}nzend konnten bei Lieberose bereits 2019 nur kurz nach dem Brandgeschehen erste Bodenuntersuchungen durchgef{\"u}hrt werden. Die untersuchten Brandfl{\"a}chen bei J{\"u}terbog und Lieberose sind als Totalreservate ausgewiesen, auf denen auch nach dem Brand waldbauliche Maßnahmen vollst{\"a}ndig unterbleiben. Auf den Fl{\"a}chen bei Treuenbrietzen wurden verschiedene Behandlungsvarianten durchgef{\"u}hrt, zu denen auf einem Teil der Fl{\"a}chen die vollst{\"a}ndige Entfernung der abgestorbenen B{\"a}ume geh{\"o}rte, w{\"a}hrend auf anderen Teilfl{\"a}chen Totholz auf der Fl{\"a}che verblieb. Ziel der bodenkundlichen Arbeiten in Pyrophob ist zum einen eine Charakterisierung der direkten Auswirkungen des Brandes auf Humus und Mineralboden hinsichtlich des Stoffbestandes und bodenbiologischer Prozesse. Zum anderen wird der Stoffaustrag aus dem Oberboden erfasst. Der etwaige Einfluss der unterschiedlichen waldbaulichen Vorgehensweise auf die Bodenverh{\"a}ltnisse wird dabei als ein Indikator f{\"u}r die Auswahl geeigneter Maßnahmen ber{\"u}cksichtigt. In den verschiedenen Untersuchungsvarianten des Vorhabens wurden zu diesem Zweck Humus- und Mineralbodenprofile untersucht. Zudem wurden Mischproben aus dem Ober- und Unterboden entnommen und auf ihren Stoffhaushalt hin analysiert. Auf jeder Untersuchungsfl{\"a}che wurden je drei frei dr{\"a}nende Kleinlysimeter in 10 cm Bodentiefe installiert, um die zeitlichen Ver{\"a}nderungen der Sickerwasserzusammensetzung und die durch den Brand initiierten Stoffaustr{\"a}ge aus dem Oberboden zu quantifizieren. Erg{\"a}nzend finden Untersuchungen zu m{\"o}glichen Auswirkungen der Br{\"a}nde auf bodenbiologische Prozesse wie Streuabbau und Stickstoffmineralisation statt.}, language = {de} } @inproceedings{SutLohmannRepmannRaab, author = {Sut-Lohmann, Magdalena and Repmann, Frank and Raab, Thomas}, title = {Vertical movement of iron-cyanide complexes in soils of a former Manufactured Gas Plant site}, 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} }