TY - CHAP A1 - Knoop, Christine A1 - Dornack, Christina A1 - Dietrich, Nils A1 - Krümmelbein, Julia A1 - Raab, Thomas T1 - Quality and condition of residues from organic waste fermentation with regard to its usage as soil amendment T2 - Proceedings, Fifth International Symposium on Energy from Biomass and Waste, San Servolo, Venice, Italy, 17-20 November 2014 N2 - 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. Y1 - 2014 UR - http://www.venicesymposium.it/symposium-proceedings.aspx PB - CISA Publisher CY - Padova ER - TY - CHAP A1 - Raab, Thomas T1 - Defining Point Zero of Pedogenesis - What About Pre-Industrial Land Use? T2 - 2014 GSA Annual Meeting in Vancouver, British Columbia (19-22 October 2014) Y1 - 2014 UR - https://gsa.confex.com/gsa/2014AM/webprogram/Paper242021.html N1 - Paper No. 6-2 SP - S. 37 PB - Geological Society of America CY - Boulder, Colo. ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas ED - Schwab, Markus J. ED - Theuerkauf, Martin ED - Brauer, Achim ED - Wilmking, Martin ED - Lampe, Reinhard T1 - Extending and simplifying the standard Köhn‐pipette technique for grain size analysis T2 - 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 Y1 - 2014 U6 - https://doi.org/10.2312/GFZ.b103-14028 SP - 40 PB - GFZ German Research Centre for Geosciences CY - Potsdam ER - TY - CHAP A1 - Schwab, Markus J. A1 - Brauer, Achim A1 - Błaszkiewicz, Mirosław A1 - Raab, Thomas A1 - Wilmking, Martin T1 - Bridging long proxy data time series and instrumental observation in the Virtual Institute of Integrated Climate and Landscape Evolution Analyses - ICLEA T2 - European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015 KW - long proxy data time series KW - instrumental observation Y1 - 2015 UR - http://meetingorganizer.copernicus.org/EGU2015/EGU2015-4703-2.pdf N1 - EGU2015-4703 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Schneider, Anna A1 - Hirsch, Florian A1 - Raab, Thomas A1 - Wechler, Klaus-Peter T1 - Reconstructing spatial and temporal patterns of soil formation in an anthropogenic drift sand area in Northeastern Germany T2 - European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015 KW - spatial patterns KW - anthropogenic drift Y1 - 2015 UR - http://meetingorganizer.copernicus.org/EGU2015/EGU2015-3937.pdf N1 - EGU2015-3937 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - GEN A1 - Raab, Thomas T1 - Was ist eigentlich Geopedologie? T2 - Forschung & Lehre : alles was die Wissenschaft bewegt N2 - 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 interdisziplinär. Y1 - 2015 SN - 0945-5604 VL - 22 IS - 8 SP - 646 EP - 647 ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Human impact on late Quaternary landscapes in the Central Spanish Pyrenees T2 - AGU Meeting Abstract, 2011 Fall Meeting San Francisco 2011 Y1 - 2011 N1 - EP31D-0842 ER - TY - CHAP A1 - Raab, Thomas A1 - Hirsch, Florian ED - Wunderlich, J. ED - Houben, P. T1 - Quartäre Sedimente und Bodenbildung in den Aragonesischen Pyrenäen T2 - AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten Y1 - 2010 SP - S. 38 PB - Goethe Universität, Institut für Physische Geographie CY - Frankfurt am Main ER - TY - GEN A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Stratigraphy and distribution of Late Quaternary sediments in the Aragon- and Gallego Valley (Aragonese Pyrenees, Spain) T2 - Quaternary International N2 - 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 & Völkel 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. Y1 - 2012 U6 - https://doi.org/10.1016/j.quaint.2012.08.370 N1 - XVIII INQUA Congress, 21st–27th July, 2011, Bern, Switzerland VL - 279-280 SP - S. 202 ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas ED - Wunderlich, J. ED - Houben, P. T1 - Sedimentologische Untersuchungen zur quartären Landschaftsgeschichte in den Aragonesischen Pyrenäen T2 - AK Geomorphologie, Jahrestagung 2010 in Frankfurt am Main/Schmitten Y1 - 2010 SP - S. 19 PB - Goethe Universität, Institut für Physische Geographie CY - Frankfurt am Main ER - TY - CHAP A1 - Turu, Valenti A1 - Hirsch, Florian A1 - Pena-Monne, J. L. A1 - Raab, Thomas A1 - Ros, X. A1 - Marti-Bono, Carlos A1 - Constante-Orrios, A. ED - Turu, Valenti ED - Constante, Ana T1 - Prospeccion geofisica y geomecanica de la ribera de Biescas (pirineos centrales): estructura del relleno sedimentario del fondo del valle y los sedimentos de vertiente T2 - Resums XIII Reunio Nacional de Quaternari, AEQUA, Andorra 2011 Y1 - 2011 SN - 978-99920-1-861-3 SN - 978-99920-1-860-6 SP - 81 EP - 83 PB - Imp. Envalira [u.a.] CY - Andorra la Vella ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas ED - Völkel, Jörg T1 - Post-LGM-zeitliche Pedogenese und Geomorphodynamik in den Spanischen Zentralpyrenäen T2 - Jahrestagung 2012, 10. - 13. Oktober 2012 in München/Campus Weihenstephan, Deutscher Arbeitskreis für Geomorphologie, Tagungsband zur Critical Zone-Forschung Y1 - 2012 SP - S. 26 PB - München CY - Technische Universität ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Reliktische Bodenbildung in den Spanischen Zentralpyrenäen als Hinweis auf spätquartäre Klimawechsel T2 - Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, Berlin, Potsdam Y1 - 2011 PB - Deutsche Bodenkundliche Gesellschaft CY - Göttingen ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas ED - Sauer, Daniela ED - Jahn, Reinhold ED - Stahr, Karl T1 - Soil formation on Late Quaternary sediments in the Central Pyrenees (Spain) T2 - Landscapes and soils through time, proceedings, Hohenheim, July 28th – August 01th, 2011 Y1 - 2011 SP - 4 EP - 5 CY - Hohenheim ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Distribution, formation and chronology of Late Quaternary sediments in the Central Spanish Pyrenees T2 - 8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume Y1 - 2013 SP - S. 342 PB - International Association of Geomorphologists CY - Paris ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Micromorphology and macrofabrics of Late Quaternary sediments in the Aragonese Pyrenees, Spain T2 - 8th International Conference (IAG) on Geomorphology, IAG, Paris, 27 - 31 August 2013, abstract volume N2 - 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. Y1 - 2013 SP - S. 1018 PB - International Association of Geomorphologists CY - Paris ER - TY - CHAP A1 - Dietrich, Nils A1 - Knoop, Christine A1 - Krümmelbein, Julia A1 - Raab, Thomas T1 - Einfluss der Ausbringung von aufbereiteten Gärrückständen aus der Bioabfallvergärung auf bodenphysikalische Eigenschaften T2 - DBG Jahrestagung 2015, München, 7.-11. September 2015 N2 - In Deutschland fallen jährlich ca. 13 Mio t Bioabfall an. Im Zuge der Novellierung des EEG 2014 erfolgte eine Aufhebung aller Sondervergütungen. Da zukünftig keine erhöhten, einsatzstoffbezogenen Vergütungen (z. B. für Mais, Zuckerrüben und Getreide) mehr vorgesehen sind, wird sich der Ausbau der Biomasse auf den Einsatz von Reststoffen (z. B. Gülle und Abfallstoffe) konzentrieren . Aus diesem Grund ist mit einer verstärkten Zunahme von Gärrückständen aus Bioabfällen zu rechnen. Im Rahmen des vom BMBF geförderten VeNGA-Projektes Grundlagenuntersuchungen zur Verwertung und Nährstoffnutzung der boden- und pflanzenbezogenen Wirkung von Gärrückständen aus der Abfallvergärung, erfolgt die genaue Charakterisierung unterschiedlicher Gärrestprodukte und Aufbereitungsverfahren hinsichtlich ihrer bodenphysikalischen Wirkung und ihrer Effekte auf Wachstum und Entwicklung von landwirtschaftlichen Kulturen. In dem Projekt werden Gärprodukte aus zwei Laboranlagen und einer Technikumsanlage mittels vier Verfahren aufbereitet und in Gefäßversuchen und einem dreijährigen Feldversuch hinsichtlich ihrer langfristigen boden- und pflanzenbezogenen Wirkung untersucht. Die unterschiedliche Aufbereitung der Gärreste 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 Gewächshaus durchgeführten viermonatigen Gefäßversuchen wurden die Gärprodukte unter Sommerweizen und im Feldversuch unter Hirse, Senf und Grünroggen getestet. Erste Ergebnisse nach dem ersten Versuchsjahr zeigen sowohl für die Gefäßversuche als auch im Freilandversuch einen positiven Effekt für 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 Porenverhältnissen, die mit einer Steigerung des Wasserhaltevermögens 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 Gärrestprodukte unterschiedliche Einflüsse auf das Wurzelwachstum von Sommerweizen besitzen. Y1 - 2015 UR - http://www-docs.tu-cottbus.de/geopedologie/public/Venga/Dietrich_2015_DBG.pdf ER - TY - CHAP A1 - Knoop, Christine A1 - Dietrich, Nils A1 - Heinrich, Martina A1 - Krümmelbein, Julia A1 - Dornack, Christina A1 - Raab, Thomas T1 - Aufbereitung von Bioabfall-Gärresten zur Nutzung als Bodenverbesserer T2 - Tagungsband, 10. Biogastagung - Anaerobe Biologische Abfallbehandlung, 29.-30. Semtember 2015, Dresden N2 - Mit der Implementierung des Kreislaufwirtschaftsgesetzes (KrWG) im Jahr 2012 hat sich die Bundesregierung gesetzlich auf eine getrennte Erfassung von Bioabfällen in privaten Haushalten ab Januar 2015 festgelegt. Bioabfälle werden in Deutschland bereits in über 100 Biogasanlagen eingesetzt und könnten in Zukunft verstärkt als Gärsubstrat genutzt werden. Die nach der Vergärung verbleibenden organischen Rückstände sollen im Sinne der Kreislaufwirtschaft als organischer Bodenverbesserer auf landwirtschaftliche Flächen rückgeführt werden. Im Rahmen des VeNGA-Projektes (Grundlagenuntersuchungen zur Verwertung und Nährstoffnutzung sowie der boden- und pflanzenbezogenen Wirkung von Gärrückständen aus der Abfallvergärung) am Lehrstuhl Geopedologie und Landschaftsentwicklung der Brandenburgischen Technischen Universität Cottbus-Senftenberg (BTU) in Zusammenarbeit mit der Firma Grossmann Ingenieur Consult Dresden (GICON) und dem Institut für Stadtökologische Projekte Berlin (IASP) sollen Aufbereitungsmöglichkeiten für Rückstände aus der Bioabfallvergärung untersucht werden. Im Fokus steht dabei der Einfluss der Substratbehandlung während des Biogas- und Aufbereitungsprozesses auf die Eigenschaften der entstehenden Düngeprodukte. Die Untersuchungen werden sowohl im Labor als auch im Technikum durchgeführt. Die Charakterisierung der festen Gärrückstände aus der Bioabfallvergärung hat gezeigt, dass diese ein ähnliches Nährstoffpotential wie Gründünger oder Frischkompost besitzen. Durch den organischen Abbau während der Vergärung kommt es zur Aufkonzentration von Nährstoffen und Schwermetallen in der festen Phase. Der Stickstoff liegt zu durchschnittlich 25 % in Form von pflanzenverfügbarem Ammoni-um vor. Während der Aufbereitung ist jedoch eine Teiltrocknung der Gärrückstände unumgänglich, was zunächst zum Stickstoffverlust führt. Es ist also von einer geringen Stickstoffverfügbarkeit in den festen Gärprodukten auszugehen. Der Einsatz der aufbereiteten Gärprodukte in Topfexperimenten und im Feldversuch hat gezeigt, dass die Ausbringung in Kombination mit Mineraldüngung zu einem erhöhten Biomasseertrag führt. Dies lässt eine positive Wirkung der Gärprodukte auf die Bodeneigenschaften schlussfolgern. Feste Gärrückstände können bei Erfüllung der Kriterien nach BioAbfV als organischer Bodenverbesserer eingesetzt werden. Eine Aufbereitung ist hierfür in den meisten Fällen notwendig. Dies gilt insbesondere für Substrate, die vor der Vergärung keiner Störstoffabscheidung unterzogen werden. Das zweistufige Fest-Flüssig-Verfahren, welches für die Untersuchungen angewendet wird, hat den Vorteil besonders unanfällig gegenüber Störstoffen zu sein. Der Störstoffgehalt im Gärrückstand ist dadurch vergleichsweise höher als bei anderen Verfahren, was einen größeren Aufbereitungsaufwand nach sich zieht. Y1 - 2015 SP - 177 EP - 186 PB - Forum für Abfallwirtschaft und Altlasten e.V. CY - Pirna ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas A1 - Schneider, Anna A1 - Wechler, Klaus-Peter T1 - Late Holocene eolian fossilization of Podzols in Northeastern Germany T2 - European Geosciences Union, General Assembly 2016, Vienna, Austria N2 - 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. Y1 - 2016 N1 - EGU2016-5754-1 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Raab, Thomas A1 - Hirsch, Florian A1 - Ouimet, William A1 - Dethier, David T1 - Soil stratigraphy of charcoal kiln remains (CKR) in the Litchfield Hills, CT, USA T2 - European Geosciences Union, General Assembly 2016, Vienna, Austria N2 - 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. Y1 - 2016 N1 - EGU2016-3477 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Missing evidence for the LGM-asynchronity in the Central Spanish Pyrenees in geomorphological, sedimentological and pedological archives T2 - European Geosciences Union, General Assembly 2016, Vienna, Austria N2 - 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. Y1 - 2016 N1 - EGU2016-5788 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - GEN A1 - Krümmelbein, Julia A1 - Raab, Thomas T1 - Development of soil physical parameters in agricultural reclamation after brown coal mining within the first four years T2 - Soil and Tillage Research N2 - 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. Y1 - 2012 UR - http://www.sciencedirect.com/science/article/pii/S0167198712001389 U6 - https://doi.org/10.1016/j.still.2012.06.013 SN - 0167-1987 VL - 125 SP - 109 EP - 115 ER - TY - CHAP A1 - Völkel, Jörg A1 - Raab, Thomas T1 - Effects of uranium mining on the landscape ecology in Eastern Thuringia – Mining dumps and floodplains as sinks and sources of mining related substances T2 - GeoDarmstadt2010 : Geowissenschaften sichern Zukunft, Frankfurt am Main & Darmstadt, 10. Oktober - 13. Oktober 2010 Y1 - 2010 SN - 978-3-510-49219-0 SP - 573 EP - 574 PB - Deutsche Gesellschaft für Geowissenschaften CY - Hannover ER -