@misc{WannerElmerKazdaetal., author = {Wanner, Manfred and Elmer, Michael and Kazda, Marian and Xylander, Willi E. R.}, title = {Community assembly of terrestrial testate amoebae: how is the very first beginning characterised?}, series = {Microbial Ecology}, volume = {56}, journal = {Microbial Ecology}, number = {1}, issn = {1432-184X}, pages = {43 -- 54}, language = {en} } @misc{StockDownes, author = {Stock, Oliver and Downes, Nigel K.}, title = {Effects of additions of organic matter on the penetration resistance of glacial till for the entire water tension range}, series = {Soil \& Tillage Research}, volume = {99}, journal = {Soil \& Tillage Research}, number = {2}, issn = {0167-1987}, doi = {10.1016/j.still.2008.02.002}, pages = {191 -- 201}, language = {en} } @misc{BoehmLandgrafMakeschin, author = {B{\"o}hm, Christian and Landgraf, Dirk and Makeschin, Franz}, title = {Changes in total and labile carbon and nitrogen contents in a sandy soil after the conversion of a succession fallow to cultivated land}, series = {Journal of Plant Nutrition and Soil Science}, volume = {173}, journal = {Journal of Plant Nutrition and Soil Science}, number = {1}, issn = {1522-2624}, pages = {46 -- 54}, language = {en} } @misc{PlieningerBaloesiusHuettl, author = {Plieninger, Tobias and Bal{\"o}sius, Eva and H{\"u}ttl, Reinhard F.}, title = {Die deutsche Agrarwirtschaft: Lokale Probleme, globale Forschungsfragen}, series = {GAiA}, volume = {17}, journal = {GAiA}, number = {3}, issn = {0940-5550}, pages = {295 -- 297}, language = {en} } @misc{WannerElmer, author = {Wanner, Manfred and Elmer, Michael}, title = {"Hot spots" on a new soil surface - how do testate amoebae settle down?}, series = {Acta Protozoologica}, volume = {48}, journal = {Acta Protozoologica}, number = {3}, issn = {1689-0027}, pages = {281 -- 289}, language = {en} } @misc{BoldtBurischRank, author = {Boldt-Burisch, Katja and Rank, Barbara}, title = {Stomata dimorphism in dicotyledonous plants of temperate climate}, series = {Feddes Repertorium}, volume = {121}, journal = {Feddes Repertorium}, number = {5-6}, issn = {1522-239X}, pages = {167 -- 183}, language = {en} } @misc{DellantonioFitzCustovicetal., author = {Dellantonio, A. and Fitz, W. J. and Custovic, H. and Repmann, Frank and Schneider, Bernd Uwe and Gr{\"u}newald, Holger and Gruber, V. and Zgorelec, Z. and Zerem, N. and Carter, C. and Markovic, M. and Puschenreiter, M. and Wenzel, W.}, title = {Environmental risks of farmed and barren alkaline coal ash landfills in Tuzla, Bosnia and Hezegovina}, series = {Environmental Pollution}, volume = {153}, journal = {Environmental Pollution}, number = {3}, doi = {10.1016/j.envpol.2007.08.032}, pages = {677 -- 686}, language = {en} } @misc{FlessaRodionovGuggenbergeretal., author = {Flessa, H. and Rodionov, Andrei and Guggenberger, Georg and Fuchs, H. and Magdons, P. and Shibistova, O. and Zrazhevskaya, G. and Mikheyeva, N. and Kasansky, O. A. and Blodau, C.}, title = {Landscape controls of CH4 fluxes in a catchment of the forest tundra ecotone in northern Siberia}, series = {Global Change Biology}, volume = {14}, journal = {Global Change Biology}, number = {9}, issn = {1365-2486}, doi = {10.1111/j.1365-2486.2008.01633.x}, pages = {1 -- 17}, language = {en} } @misc{GuggenbergerRodionovShibistovaetal., author = {Guggenberger, Georg and Rodionov, Andrei and Shibistova, O. and Grabe, M. and Kasansky, O. A. and Fuchs, H. and Mikheyeva, N. and Zrazhevskaya, G. and Flessa, H.}, title = {Storage and mobility of black carbon in permafrost soils of the forest tundra ecotone in Northern Siberia}, series = {Global Change Biology}, volume = {14}, journal = {Global Change Biology}, number = {6}, issn = {1757-1707}, doi = {10.1111/j.1365-2486.2008.01568.x}, pages = {1367 -- 1381}, language = {en} } @misc{KreylingBeierkuhnleinElmeretal., author = {Kreyling, J{\"u}rgen and Beierkuhnlein, Carl and Elmer, Michael and Pritsch, Karin and Radovski, Monica and Schloter, Michael and W{\"o}llecke, Jens and Jentsch, Anke}, title = {Soil biotic processes remain remarkably stable after 100-year extreme weather events in experimental grassland and heath}, series = {Plant and Soil}, volume = {308}, journal = {Plant and Soil}, number = {1-2}, issn = {1573-5036}, doi = {10.1007/s11104-008-9617-1}, pages = {175 -- 188}, language = {en} } @misc{DillyFrankeNiiAnnangetal., author = {Dilly, Oliver and Franke, G. and Nii-Annang, Seth and Weber, K. and Freese, Dirk and Zyakun, Anatoly and H{\"u}ttl, Reinhard F.}, title = {Soil respiratory indicators including carbon isotope characteristics in response to copper}, series = {Geomicrobiology Journal}, volume = {25}, journal = {Geomicrobiology Journal}, number = {7-8}, issn = {1521-0529}, doi = {10.1080/01490450802402992}, pages = {390 -- 395}, language = {en} } @misc{LemmnitzKuhnertBensetal., author = {Lemmnitz, Christine and Kuhnert, Matthias and Bens, Oliver and G{\"u}nter, A. and Merz, Bruno and H{\"u}ttl, Reinhard F.}, title = {Spatial and temporal variations of actual soil water repellency and their influence on surface runoff}, series = {Hydrological Processes}, volume = {22}, journal = {Hydrological Processes}, number = {12}, issn = {1099-1085}, doi = {10.1002/hyp.6782}, pages = {1976 -- 1984}, language = {en} } @misc{ChabbiSebiloRumpeletal., author = {Chabbi, Abad and Sebilo, Mathieu and Rumpel, Cornelia and Schaaf, Wolfgang and Mariotti, Andr{\´e}}, title = {Origin of Nitrogen in Reforested Lignite-Rich Mine Soils Revealed by Stable Isotope Analysis}, series = {Environmental Science \& Technology}, volume = {42}, journal = {Environmental Science \& Technology}, number = {8}, issn = {1520-5851}, doi = {10.1021/es702377k}, pages = {2787 -- 2792}, language = {en} } @misc{KruemmelbeinPethHorn, author = {Kr{\"u}mmelbein, Julia and Peth, Stephan and Horn, Rainer}, title = {Determination of pre-compression stress of various grazed steppe soil under static and cyclic loading}, series = {Soil \& Tillage Research}, volume = {99}, journal = {Soil \& Tillage Research}, number = {2}, issn = {0167-1987}, doi = {10.1016/j.still.2008.01.008}, pages = {139 -- 148}, language = {en} } @misc{DillyZyakun, author = {Dilly, Oliver and Zyakun, Anatoly}, title = {Priming Effect and Respiratory Quotient in a Forest Soil Amended with Glucose}, series = {Geomicrobiology Journal}, volume = {25}, journal = {Geomicrobiology Journal}, number = {7-8}, issn = {1521-0529}, doi = {10.1080/01490450802403099}, pages = {425 -- 431}, language = {en} } @misc{GebhardtNeubertWoelleckeetal., author = {Gebhardt, Sascha and Neubert, K. and W{\"o}llecke, Jens and M{\"u}nzenberger, Babette and H{\"u}ttl, Reinhard F.}, title = {Ectomycorrhiza communities of red oak (Quercus rubra L.) of different age in the Lusatian lignite mining district, East Germany}, series = {Mycorrhiza}, volume = {17}, journal = {Mycorrhiza}, number = {4}, issn = {1432-1890}, doi = {10.1007/s00572-006-0103-4}, pages = {279 -- 290}, language = {en} } @misc{GruenewaldBrandtSchneideretal., author = {Gr{\"u}newald, Holger and Brandt, Barbara K. V. and Schneider, Bernd Uwe and Bens, Oliver and Kendzia, Gerald and H{\"u}ttl, Reinhard F.}, title = {Agroforestry systems for the production of woody biomass for energy transformation purposes}, series = {Ecological Engineering}, volume = {29}, journal = {Ecological Engineering}, number = {4}, issn = {0925-8574}, doi = {10.1016/j.ecoleng.2006.09.012}, pages = {319 -- 328}, language = {en} } @misc{BensWahlFischeretal., author = {Bens, Oliver and Wahl, Niels Arne and Fischer, Holger and H{\"u}ttl, Reinhard F.}, title = {Water infiltration and hydraulic conductivity in sandy cambisols: impacts of forest transformation on soil hydrological properties}, series = {European Journal of Forest Research}, volume = {126}, journal = {European Journal of Forest Research}, number = {1}, issn = {1612-4677}, doi = {10.1007/s10342-006-0133-7}, pages = {101 -- 109}, language = {en} } @misc{BuczkoBensHuettl, author = {Buczko, Uwe and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Changes in soil water repellency in a pine-beech forest transformation chronosequence: Influence of antecedent rainfall and air temperature}, series = {Ecological Engineering}, volume = {31}, journal = {Ecological Engineering}, number = {3}, issn = {0925-8574}, doi = {10.1016/j.ecoleng.2007.03.006}, pages = {197 -- 204}, language = {en} } @misc{DillyMunchPfeiffer, author = {Dilly, Oliver and Munch, Jean Charles and Pfeiffer, Eva-Maria}, title = {Enzyme activities and litter decomposition in agricultural soils in northern, central, and southern Germany}, series = {Journal of Plant Nutrition and Soil Science}, volume = {170}, journal = {Journal of Plant Nutrition and Soil Science}, number = {2}, issn = {1522-2624}, doi = {10.1002/jpln.200622044}, pages = {197 -- 204}, language = {en} } @misc{MamilovDilly, author = {Mamilov, Anvar S. and Dilly, Oliver}, title = {Microbial characteristics during the initial stages of litter decomposition in forest and adjacent cropland soil}, series = {Ecological Engineering}, volume = {31}, journal = {Ecological Engineering}, number = {3}, issn = {0925-8574}, doi = {10.1016/j.ecoleng.2007.03.005}, pages = {147 -- 153}, language = {en} } @misc{HangenGerke, author = {Hangen, Edzard and Gerke, Horst H.}, title = {Field Measurements of Air and Water Pressures in a Heterogeneous Forest-Reclaimed Lignitic Mine Soil}, series = {Vadose Zone Journal}, volume = {6}, journal = {Vadose Zone Journal}, number = {4}, issn = {1539-1663}, doi = {10.2136/vzj2007.0049}, pages = {849 -- 854}, language = {en} } @misc{HuettlFischer, author = {H{\"u}ttl, Reinhard F. and Fischer, Thomas}, title = {Carbon sequestration and landscape ecology in Western Europe - editorial}, series = {Ecological Engineering}, volume = {29}, journal = {Ecological Engineering}, number = {4}, issn = {0925-8574}, doi = {10.1016/j.ecoleng.2006.10.001}, pages = {317 -- 318}, language = {en} } @misc{HuettlGerwin, author = {H{\"u}ttl, Reinhard F. and Gerwin, Werner}, title = {Forest rehabilitation after disturbance : introduction}, series = {Ecological Engineering}, volume = {31}, journal = {Ecological Engineering}, number = {1}, issn = {0925-8574}, doi = {10.1016/j.ecoleng.2007.05.002}, pages = {145 -- 146}, language = {en} } @misc{StockLesturgezBensetal., author = {Stock, Oliver and Lesturgez, Gregory and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Mechanical properties of metastable glacial till before and after water-induced compaction}, series = {Journal of Plant Nutrition and Soil Science}, volume = {170}, journal = {Journal of Plant Nutrition and Soil Science}, number = {4}, issn = {1522-2624}, doi = {10.1002/jpln.200625012}, pages = {560 -- 566}, language = {en} } @misc{RaabLeopoldVoelkel, author = {Raab, Thomas and Leopold, Matthias and V{\"o}lkel, J{\"o}rg}, title = {Character, Age, and ecological significance of pleistocene periglacial slope deposits in Germany}, series = {Physical Geography}, volume = {28}, journal = {Physical Geography}, number = {6}, issn = {1930-0557}, doi = {10.2747/0272-3646.28.6.451}, pages = {451 -- 473}, language = {en} } @misc{StockBensHuettl, author = {Stock, Oliver and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {The interrelationship between the cultivation of crops and soil-strangth dynamics}, series = {Journal of Plant Nutrition and Soil Science}, volume = {170}, journal = {Journal of Plant Nutrition and Soil Science}, number = {6}, issn = {1522-2624}, doi = {10.1002/jpln.200625009}, pages = {713 -- 721}, language = {en} } @misc{SchaafHuettl, author = {Schaaf, Wolfgang and H{\"u}ttl, Reinhard F.}, title = {Direct and indirect effects of soil pollution by lignite mining}, series = {Water, Air \& Soil Pollution: Focus}, volume = {6}, journal = {Water, Air \& Soil Pollution: Focus}, number = {3-4}, issn = {1573-2940}, doi = {10.1007/s11267-005-9028-8}, pages = {353 -- 364}, language = {en} } @misc{PlieningerBensHuettl, author = {Plieninger, Tobias and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Perspective of bioenergy for agriculture and rural areas}, series = {Outlook on Agriculture}, volume = {35}, journal = {Outlook on Agriculture}, number = {2}, issn = {0030-7270}, doi = {10.5367/000000006777641624}, pages = {123 -- 127}, language = {en} } @misc{PlieningerBens, author = {Plieninger, Tobias and Bens, Oliver}, title = {How the emergence of biofuels challenges conservation}, series = {Environmental Conservation}, volume = {34}, journal = {Environmental Conservation}, number = {4}, issn = {1469-4387}, doi = {10.1017/S0376892907004328}, pages = {273 -- 275}, language = {en} } @misc{SchaafHuettl, author = {Schaaf, Wolfgang and H{\"u}ttl, Reinhard F.}, title = {Experiences with liming in European countries - results of long-term experiments}, series = {Journal of Forest Science}, volume = {52}, journal = {Journal of Forest Science}, number = {Special Issue}, pages = {35 -- 44}, language = {en} } @misc{PlieningerBensHuettl, author = {Plieninger, Tobias and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Introduction}, series = {Outlook on Agriculture}, volume = {35}, journal = {Outlook on Agriculture}, number = {2}, doi = {10.5367/000000006777641552}, pages = {95 -- 96}, language = {en} } @misc{Plieninger, author = {Plieninger, Tobias}, title = {Looking Beyond Corn and Petroleum}, series = {Science}, volume = {Vol. 315}, journal = {Science}, number = {5816}, issn = {0036-8075}, pages = {1222 -- 1223}, language = {en} } @misc{BiberSeifertZaplataetal., author = {Biber, Peter and Seifert, Stefan and Zaplata, Markus Klemens and Schaaf, Wolfgang and Pretzsch, Hans and Fischer, Anton}, title = {Relationships between substrate, surface characteristics, and vegetation in an initial ecosystem}, series = {Biogeosciences}, volume = {10}, journal = {Biogeosciences}, doi = {10.5194/bg-10-8283-2013}, pages = {8283 -- 8303}, abstract = {We investigated surface and vegetation dynamics in the artificial initial ecosystem "Chicken Creek" (Lusatia, Germany) in the years 2006-2011 across a wide spectrum of empirical data. We scrutinized three overarching hypotheses concerning (1) the relations between initial geomorphological and substrate characteristics with surface structure and terrain properties, (2) the effects of the latter on the occurrence of grouped plant species, and (3) vegetation density effects on terrain surface change. Our data comprise and conflate annual vegetation monitoring results, biennial terrestrial laser scans (starting in 2008), annual groundwater levels, and initially measured soil characteristics. The empirical evidence mostly confirms the hypotheses, revealing statistically significant relations for several goal variables: (1) the surface structure properties, local rill density, local relief energy and terrain surface height change; (2) the cover of different plant groups (annual, herbaceous, grass-like, woody, Fabaceae), and local vegetation height; and (3) terrain surface height change showed significant time-dependent relations with a variable that proxies local plant biomass. Additionally, period specific effects (like a calendar-year optimum effect for the occurrence of Fabaceae) were proven. Further and beyond the hypotheses, our findings on the spatiotemporal dynamics during the system's early development grasp processes which generally mark the transition from a geo-hydro-system towards a bio-geo-hydro system (weakening geomorphology effects on substrate surface dynamics, while vegetation effects intensify with time), where pure geomorphology or substrate feedbacks are changing into vegetation-substrate feedback processes.}, language = {en} } @misc{ChabbiRumpelGrootesetal., author = {Chabbi, Abad and Rumpel, C. and Grootes, Pieter M. and Gonzales-Perez, J. A. and Delaune, R. D. and Gonzales-Vila, F. and Nixdorf, Brigitte and H{\"u}ttl, Reinhard F.}, title = {Lignite degradation and mineralization in lignite-containing mine sediment as revealed by 14C activity measurements and molecular analysis}, series = {Organic Geochemistry}, volume = {37}, journal = {Organic Geochemistry}, number = {8}, issn = {0146-6380}, doi = {10.1016/j.orggeochem.2006.02.002}, pages = {957 -- 976}, language = {en} } @misc{ChabbiRumpelGrootesetal., author = {Chabbi, Abad and Rumpel, Cornelia and Grootes, Pieter M. and Mariotti, Andr{\´e} and H{\"u}ttl, Reinhard F.}, title = {Isotopic tracers for the analysis of vegetation-derived organic matter in lignite-containing soils and sediments along a transect ranging from a forest soil to submerged lake sediment}, series = {Organic Geochemistry}, volume = {37}, journal = {Organic Geochemistry}, number = {6}, issn = {0146-6380}, doi = {10.1016/j.orggeochem.2006.01.011}, pages = {740 -- 753}, language = {en} } @misc{BaumannRumpeltSchneideretal., author = {Baumann, K. and Rumpelt, A. and Schneider, Bernd Uwe and Marschner, P. and H{\"u}ttl, Reinhard F.}, title = {Seedling biomass and element content of Pinus sylvestris and Pinus nigra grown in sandy substrates with lignite}, series = {Geoderma}, volume = {136}, journal = {Geoderma}, number = {3-4}, issn = {0016-7061}, doi = {10.1016/j.geoderma.2006.04.013}, pages = {573 -- 578}, language = {en} } @misc{BensBuczkoSieberetal., author = {Bens, Oliver and Buczko, Uwe and Sieber, Sonja and H{\"u}ttl, Reinhard F.}, title = {Spatial variability of O layer thickness and humus forms under different pine beech-forest transformation stages in NE Germany}, series = {Journal of Plant Nutrition and Soil Science}, volume = {169}, journal = {Journal of Plant Nutrition and Soil Science}, number = {1}, issn = {1522-2624}, doi = {10.1002/jpln.200521734}, pages = {5 -- 15}, language = {en} } @misc{BuczkoBensHuettl, author = {Buczko, Uwe and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Water infiltration and hydrophobicity in forest soils of a pine-beech transformation chronosequence}, series = {Journal of Hydrology}, volume = {331}, journal = {Journal of Hydrology}, number = {3-4}, doi = {10.1016/j.jhydrol.2006.05.023}, pages = {383 -- 395}, language = {en} } @misc{SchaafHuettlScullion, author = {Schaaf, Wolfgang and H{\"u}ttl, Reinhard F. and Scullion, John}, title = {Preface: EUROSOIL 2004 Symposium in Freiburg, Germany}, series = {Water, Air \& Soil Pollution: Focus}, volume = {6}, journal = {Water, Air \& Soil Pollution: Focus}, number = {3-4}, issn = {1573-2940}, doi = {10.1007/s11267-005-9020-3}, pages = {233 -- 234}, language = {en} } @misc{BuczkoBens, author = {Buczko, Uwe and Bens, Oliver}, title = {Assessing soil hydrophobicity and its variability through the soil profile using two different methods}, series = {Soil Science Society of America Journal}, volume = {70}, journal = {Soil Science Society of America Journal}, number = {3}, issn = {1435-0661}, doi = {10.2136/sssaj2005.0183}, pages = {718 -- 727}, language = {en} } @misc{Dilly, author = {Dilly, Oliver}, title = {Ratios of microbial biomass estimates to evaluate microbial physiology in soil}, series = {Biology and Fertility of Soils}, volume = {42}, journal = {Biology and Fertility of Soils}, number = {3}, issn = {1432-0789}, doi = {10.1007/s00374-005-0021-1}, pages = {241 -- 246}, language = {en} } @misc{ZoennchenSchaafEsperschuetz, author = {Z{\"o}nnchen, Claudia and Schaaf, Wolfgang and Espersch{\"u}tz, J{\"u}rgen}, title = {Effect of litter addition on element leaching in young sandy soils}, series = {Journal of Plant Nutrition and Soil Science}, volume = {177}, journal = {Journal of Plant Nutrition and Soil Science}, number = {4}, issn = {1522-2624}, doi = {10.1002/jpln.201300383}, pages = {585 -- 595}, abstract = {The knowledge about element leaching and biogeochemical cycles during initial stages of soil development is very limited. Therefore, we studied the effects of parent material characteristics and plant litter addition on element leaching from young sandy soils in a microcosm experiment. Our objective was to evaluate the function of young soils as a source and/or sink for nutrients during initial pedogenesis and to identify main processes which are involved in the initial development of biogeochemical cycles. The main research questions were: (1) How do differences in parent material characteristics affect nutrient leaching?; and (2) How is nutrient leaching of young soils influenced by litter addition of different plant functional groups (e.g., legume and grass species)? Combined treatments of two minimally weathered parent materials (pure sand and loamy sand) with plant litter of two plant species (Lotus corniculatus L. and Calamagrostis epigejos L.) were investigated in a soil column experiment. In addition, control columns with parent material or plant litter only were included. Carbonate weathering as a main source for calcium leaching was induced by the moderately acidic irrigation solution used in the experiment. It was 7.5 fold greater for the loamy sand parent material compared to the pure sand despite lower carbonate contents in the loamy sand. Leaching of K was very low for both parent materials but greater for the loamy sand parent material, likely due to transfer processes from fixed to exchangeable potassium forms in the clay minerals of the loamy sand. Plant litter addition generally increased leaching losses. Carbonate dissolution was intensified by both plant litter types, especially by L. corniculatus, very likely due to H+ released during nitrification of N released from plant litter and an increase in partial pressure of CO2 from microbial respiration. In contrast, K was largely retained in the soils, probably due to fixation by clay minerals and microbial immobilization. Only the pure sand treated with L. corniculatus litter leached K, resulting in 4-6 fold greater leaching losses compared to all other treatments. Nitrogen released from L. corniculatus litter was almost completely nitrified and was nearly doubled as compared to that from C. epigejos, resulting in greater N leaching. The results of our study allow identifying the general function and processes of vegetation patches in young ecosystems formed as a result of initial parent material characteristics and invading vegetation with respect to litter decomposition, soil solution composition, nutrient retention and leaching, and effects on the soil mineral phase. These patterns are not mere additive effects of parent materials plus plant litter, but reflect differences in biogeochemical process intensities and could result in an increasing heterogeneity of soil properties, nutrient availability, and element leaching fluxes with time.}, language = {en} } @misc{SlazakFreeseMatosetal., author = {Slazak, Anna and Freese, Dirk and Matos, Eduardo da Silva and Nii-Annang, Seth and H{\"u}ttl, Reinhard F.}, title = {Phosphorus pools in soil after land conversion from silvopasture to arable and grassland use}, series = {Journal of Plant Nutrition and Soil Science}, volume = {177}, journal = {Journal of Plant Nutrition and Soil Science}, number = {2}, issn = {1522-2624}, doi = {10.1002/jpln.201200334}, pages = {159 -- 167}, abstract = {Differences in soil P among silvopasture, grassland, and arable lands have been well established. Nevertheless, most of the reports compare soil properties under long-term sites. Thus, there exists little information on the effect of the conversion of silvopasture to arable or grassland use on soil P pools. The objective of the study was to determine the impact of converting silvopasture system (SP) into arable cropping and grassland system on the distribution of P pools and potential P bioavailability. We compared the following systems: SP system, SP converted to arable cropland (SP-AL), SP converted to grassland (SP-GL), and for comparative purposes, a long-term arable cropland (AL). The P fractionation was performed by a sequential extraction scheme, using acid and alkaline extractants on samples collected from the 0-10 and 10-20 cm soil layers. It was assumed that the large variations in soil-P fractionations are caused by the different management practices associated with land conversion. The results of P fractionation showed a dominance of calcium-bound P, HCl-extractable Pi constituted up to 36\% of the soil total P (TP). However, the type of land use did not affect this P fraction. On the other hand, the reduction in labile-Pi and NaOH-Pi fractions observed at the SP-AL site may have led to the decline in readily available P. The soil total organic P (TPo) content was 8\% and 17\% lower at SP-AL compared to SP and SP-GL site, respectively. Labile organic-P (labile-Po) content was markedly higher at SP site compared to arable soils, and was ≈ 10\% of TPo. The NaOH-Po constituted the highest fraction of the organic-P pool (55\%-79\% of TPo) across all the study systems, and was positively correlated with TPo (p < 0.01). The study indicates that conversion of SP system in temperate regions to arable cropping with conventional tillage seems to result in the reduction of P availability compared to SP, indicating SP as an important land-use practice.}, language = {en} } @misc{DillyRepmannFrankeetal., author = {Dilly, Oliver and Repmann, Frank and Franke, Gabriele and Gr{\"u}newald, Holger and Schneider, Bernd Uwe and H{\"u}ttl, Reinhard F.}, title = {Microbial Characteristics of Young Soils on Disposal Sites of Coal Combustion Waste in Bosnia and Herzegovina}, series = {Geomicrobiology Journal}, volume = {28}, journal = {Geomicrobiology Journal}, number = {7}, issn = {1521-0529}, doi = {10.1080/01490451.2010.512032}, pages = {574 -- 581}, abstract = {Microbial communities are essential for a range of soil functions and adjust to soil development, environmental conditions and pollution level by community structure, abundance and activity. At desolated landfills of coal combustion waste (CCW) that were un-covered and covered with shallow soil material layers, soil microbial indicators were estimated for both the ecological and eco-toxicological evaluation. The young CCW sites with pH values of 9.5 and substantial coal-derived organic carbon showed significant microbial biomass content and nitrogen mineralization rates. At the 0 to 15 year old landfills, the microbial biomass content and activities increased significantly with age. However, large spatial variations occurred due to the variation of the cover material thickness, the degree of ash-aging and the tillage practices. Carbon dioxide was even sequestered at young CCW sites as indicated during laboratory incubation with an open apparatus purging continuously ambient air. In accordance, the respiratory quotient went down to 0.03 mol CO2 evolution rate per mol O2 uptake rate, indicating that the CO2 evolution rate is limited as an overall quality indicator. Within 15 years, these 'Technosols' showed pH values of 7.7 and decalcified while changes in microbial biomass content and activity rates were mainly related to N availability. We concluded that the available As, B, Cr and Ni pollution at CCW sites seemed largely immobilised by organic matter and alkalinity and therefore did not to inhibit the microbial colonisation and development of high microbial activity within 15 years. However, the ash disposals pose a contamination risk by wind erosion and a future risk to human or environmental health when toxic metals will be released in soil at low pH values, low organic matter and low antagonistic ion contents.}, 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} } @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{HerbrichZoennchenSchaaf, author = {Herbrich, Marcus and Z{\"o}nnchen, Claudia and Schaaf, Wolfgang}, title = {Short-term effects of plant litter addition on mineral surface characteristics of young sandy soils}, series = {Geoderma}, volume = {239-240}, journal = {Geoderma}, issn = {0016-7061}, doi = {10.1016/j.geoderma.2014.10.017}, pages = {206 -- 212}, abstract = {Initial stages of soil development are characterized by structural changes of mineral surfaces over time. The specific surface area (SSA) is closely related to pedogenic properties and soil organic matter (SOM). Interactions between SOM and mineral surfaces induce quantitative and qualitative changes in SSA and corresponding soil properties. However, the knowledge about ranges, effects and mechanisms of organic coverage in the very initial phase of pedogenesis is very limited. Therefore, our objective was to study these processes in young sandy soils and the effects of plant litter addition. Soil samples taken from the constructed catchment "Chicken Creek" were used in a microcosm experiment over 80 weeks. The silt and clay fractions of samples (b63 μm) were analyzed before the experiment and after 40 and 80 weeks. The effects of litter addition and weathering on SSA were assessed using the BET-N2 sorption approach. We found increases of SSA between 16.4\% and 41.6\% within the 80 week experimental period, but a relative reduction in S. A due to organic coverage of these new surfaces after plant litter addition. The removal of the soil organic matter (SOM) by muffling increased SSA (6.8-12.9\%). The results for SSA corresponded to changes in surface specific parameters like cation exchange capacity (CEC), surface enthalpy and the fractional coverage of mineral surfaces by SOM. In conclusion, the results showed that the soilswere clearly in a very initial state of soil development. However, the potential of these young sandy soils to adsorb nutrients and soil organic matter as one of the main important soil functions clearly increased within the relatively short experimental period and changes in SSA indicate relatively large increases in mineral surfaces within short time periods during the initial phase of soil development compared to long-term pedogenesis.}, language = {en} } @misc{BoehmKanzlerFreese, author = {B{\"o}hm, Christian and Kanzler, Michael and Freese, Dirk}, title = {Wind speed reduction as influenced by woody hedgerows grown for biomass in short rotation alley cropping systems in Germany}, series = {Agroforestry Systems}, volume = {88}, journal = {Agroforestry Systems}, number = {4}, issn = {1572-9680}, doi = {10.1007/s10457-014-9700-y}, pages = {579 -- 591}, abstract = {The cultivation of fast growing trees on agricultural sites is an area undergoing a growth in interest due to the rising demand for woody biomass as a source of bioenergy. Short rotation alley cropping systems (SRACS) represent a promising possibility to combine annual crops for food, fodder or bioenergy with woody plants for biomass production, doing so through an integration of hedgerows of fast growing trees into conventional agricultural sites. Against such developments, the question has arisen as to what extent hedgerows in SRACS can act as an effective windbreak despite their management-related low height of only a few meters. On the basis of multiannual recorded wind velocity data in high resolution at two sites in Germany, it could be shown that the wind speed on crop alleys was reduced significantly by such hedgerows. At the central point of 24 m wide crop alleys, the wind speed decreased on an annual average basis by more than 50 \% when compared to the wind speeds of open field. The overall amount of reduction was strongly dependent on the location within the crop alleys, the height of trees, the distance between two hedgerows, and their orientation. In reflection upon these results, it was concluded that the establishment of SRACS could lead to enhanced soil protection against wind erosion and thus to ecological and economic benefits for agricultural sites.}, 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} }