@misc{OuldBabaPethHornetal., author = {Ould Baba, Hamoudy and Peth, Stephan and Horn, Rainer and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Quantification of mechanical strength and sliding stability of an artificial water catchment (Chicken Creek)}, series = {Soil \& Tillage Research}, volume = {146}, journal = {Soil \& Tillage Research}, issn = {0167-1987}, doi = {10.1016/j.still.2014.05.013}, pages = {66 -- 78}, abstract = {Natural shear forces due to gravity along inclined terrain surfaces are controlled by the inclination of the terrain, material composition and its mechanical properties, stratification and hydraulic stress states. Both shear forces and shear strength under a given inclination of the terrain surface strongly depend on the interaction between mechanical and hydraulic stresses. These internal conditions as well as the interactions between these various components are fundamentals in all nonplanar regions under arable, forest or grassland management and they dominate also under various geoscientific aims. Generally, soil creep is a slow soil movement downslope under gravity. It can occur even on gentle slopes when the shear forces exceed the shear strength of the soil. Deposited material on slopes is more sensitive to such movements than well-developed soils due to the absence of a pronounced soil structure, site and management dependent hydraulic properties and functions, which results in low soil strength. We applied the described measurements and the modelling approaches to investigate and to analyse the stability of an artificially constructed water catchment (Chicken Creek) in the mining district of Cottbus/Germany, where glacial sand was deposited above a clay layer with an inclination of about 3.5\%. At the lower part of the catchment, an impermeable barrier (claywall)was positioned transversally to the main slope. Mechanical and hydraulic parameters of the soil layers were determined on soil samples taken from the field site. The measured values were inserted as input parameters for the finite element model (Plaxis 2D) to simulate soil movements and their effect on the stability of the catchment. The obtained results showed that the kind of construction negatively affected the physical low soil strength (low precompression stress) although the bulk density was very high (1.7-1.9 g/cm3 for the sandy material). Hydraulic conductivity revealed a significant anisotropy with higher hydraulic conductivity values in the horizontal direction. Furthermore, finite element results showed that the design of the newly formed landscape remains weak concerning mass movements too. The high water table in the sandy material in conjunction with low soil strength enhances the downslope movement and increases the shear stress near the clay wall at the lower end of the slope, which finally results in soil creep processes. These results also proof that such geotechnical and modelling approach is also suitable to validate or to predict mass movements and the internal processes responsible for these internal mass erosion.}, 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{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{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{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{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{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{PrechtelLuetzowSchneideretal., author = {Prechtel, Annette and L{\"u}tzow, Margit von and Schneider, Bernd Uwe and Bens, Oliver and Bannick, Claus G. and K{\"o}gel-Knabner, Ingrid and H{\"u}ttl, Reinhard F.}, title = {Organic carbon in soils of Germany: Status quo and the need for new data to evaluate potentials and trends of soil carbon sequestration}, series = {Journal of Plant Nutrition and Soil Science}, volume = {172}, journal = {Journal of Plant Nutrition and Soil Science}, number = {5}, issn = {1522-2624}, doi = {10.1002/jpln.200900034}, pages = {601 -- 614}, 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{PlieningerThielBensetal., author = {Plieninger, Tobias and Thiel, Andreas and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Pathways and pitfalls of implementing the use of woodfuels in Germanys bioenergy sector}, series = {Biomass and Bioenergy}, volume = {33}, journal = {Biomass and Bioenergy}, number = {3}, issn = {0961-9534}, doi = {10.1016/j.biombioe.2008.08.013}, pages = {384 -- 392}, language = {en} } @misc{PlieningerBeetzBensetal., author = {Plieninger, Tobias and Beetz, Stephan and Bens, Oliver and H{\"u}ttl, Reinhard F.}, title = {Land use innovations in North-East Germany - A case study of the bioenergy sector}, series = {GAiA - Ecological Perspectives in Science Humanities and Economics}, volume = {18}, journal = {GAiA - Ecological Perspectives in Science Humanities and Economics}, number = {2}, pages = {136 -- 144}, language = {en} }