Parameterization for EROSION-3D Model under Simulated Rainfall Conditions in Lower Shivaliks of India

被引:8
作者
Lenz, Jonas [1 ]
Yousuf, Abrar [2 ]
Schindewolf, Marcus [3 ]
von Werner, Michael [4 ]
Hartsch, Kerstin [5 ]
Singh, Manmohan J. [2 ]
Schmidt, Juergen [1 ]
机构
[1] TU Bergakad Freiberg, Soil & Water Conservat Unit, Agr Str 22, D-09599 Freiberg, Germany
[2] Punjab Agr Univ, Reg Res Stn, Sbs Nagar 144521, Punjab, India
[3] Thuringer Landesanstalt Landwirtschaft, Referat 420 Acker & Pflanzenbau, D-07743 Jena, Germany
[4] GeoGnost, Bekassinenweg 30, D-13503 Berlin, Germany
[5] IPROconsult GmbH, Dept Ecol & Environm, Schnorrstr 70, D-01069 Dresden, Germany
关键词
soil erosion; rainfall experiment; soil erosion modeling; physical based; EROSION-3D; lower Shivaliks; Kandi area; India; Monsoon;
D O I
10.3390/geosciences8110396
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The Shivalik foothills of northwestern India are very prone to soil erosion by water due to undulating slopes, highly erodible soils and high intensity rainstorm events during monsoon season. Physically based soil erosion modeling is seen as viable method for planning of measurements to reduce damages done by soil erosion. Nevertheless, parametrization of such models is a major challenge for large inaccessible areas. Several methods do exist for the estimation of the input parameters skin factor, surface roughness and resistance to erosion for the physically based soil erosion model EROSION-3D. Four rainfall experiments, each including dry and wet run, were conducted on different land use conditions on a research farm of the Regional Research Station Ballowal Saunkhri to test estimation methods. Modeling parameters were determined from these experiments. Parameter estimation by two methods for experimental conditions produced values in close range to experimentally determined values for resistance to erosion and surface roughness. Therefore, existing estimation methods are considered to be applicable for the conditions of the Shivalik mountains, except for skin factor. A first modeling with EROSION-3D using preliminary data of a small example catchment shows uncertainties resulting from range of determined and estimated soil parameters.
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页数:18
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