TY - GEN A1 - Reszkowska, Agnieszka A1 - Krümmelbein, Julia A1 - Peth, Stephan A1 - Horn, Rainer A1 - Zhao, Ying A1 - Gan, Lei T1 - Influence of grazing on hydraulic and mechanical properties of semiarid steppe soils under different vegetation type in Inner Mongolia, China T2 - Plant and Soil Y1 - 2011 SN - 1573-5036 VL - 340 IS - 1-2 SP - 59 EP - 72 ER - TY - GEN A1 - Kölbl, Angelika A1 - Steffens, Markus A1 - Wiesmeier, Martin A1 - Hoffmann, Carsten A1 - Funk, Roger A1 - Krümmelbein, Julia A1 - Reszkowska, Agnieszka A1 - Zhao, Ying A1 - Peth, Stephan A1 - Horn, Rainer A1 - Giese, Marcus A1 - Kögel-Knabner, Ingrid T1 - Grazing changes topography-controlled topsoil properties and their interaction on different spatial scales in a semi-arid grassland of Inner Mongolia, P.R. China T2 - Plant and Soil Y1 - 2011 SN - 1573-5036 VL - 340 IS - 1-2 SP - 35 EP - 58 ER - TY - CHAP A1 - Krümmelbein, Julia A1 - Peth, Stephan A1 - Horn, Rainer ED - Blum, Winfried E. H. ED - Gerzabek, Martin H. ED - Vodrazka, Martin T1 - The elasto-plastic behaviour of variously grazed steppe soil from Inner Mongolia, P.R. China, under cyclic loading T2 - EUROSOIL 2008, book of abstracts, 25.-29. August 2008, Vienna, Austria Y1 - 2008 SN - 978-3-902382-05-4 SP - 29 EP - 30 PB - University of Natural Resources and Applied Life Sciences CY - Wien ER - TY - GEN A1 - Krümmelbein, Julia A1 - Peth, Stephan A1 - Zhao, Ying A1 - Horn, Rainer T1 - Grazing-induced alterations of soil hydraulic properties and functions in Inner Mongolia, PR China T2 - Journal of Plant Nutrition and Soil Science Y1 - 2009 U6 - https://doi.org/10.1002/jpln.200800218 SN - 1522-2624 VL - 172 IS - 6 SP - 769 EP - 776 ER - TY - GEN A1 - Krümmelbein, Julia A1 - Peth, Stephan A1 - Horn, Rainer T1 - Determination of pre-compression stress of various grazed steppe soil under static and cyclic loading T2 - Soil & Tillage Research Y1 - 2008 U6 - https://doi.org/10.1016/j.still.2008.01.008 SN - 0167-1987 VL - 99 IS - 2 SP - 139 EP - 148 ER - TY - GEN A1 - Ould Baba, Hamoudy A1 - Peth, Stephan A1 - Horn, Rainer A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Quantification of mechanical strength and sliding stability of an artificial water catchment (Chicken Creek) T2 - Soil & Tillage Research N2 - 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. Y1 - 2015 U6 - https://doi.org/10.1016/j.still.2014.05.013 SN - 0167-1987 VL - 146 SP - 66 EP - 78 ER -