Details zur Publikation
|DOI / URL|
|Titel (primär)||Characterisation and modelling of winter (snow melt) soil erosion processes|
|Titel (sekundär)||Proceedings 12th International Soil Conservation Organization Conference -Soil and Water Conservation: Regional Policies and Action, Beijing 2002|
|Autor||Ollesch, G.; Meißner, R.; Rode, M.|
|Department||ASAM; BOPHY; HYMOD; BOFO|
|Keywords||winter soil erosion, snow melt, phosphorus, erosion modelling, Russia, Germany|
|Abstract||Soil erosion processes as well as sediment and nutrient transport in winter cuased by snowmelt runoff generation is often neglected or ignored. Recently, studies have focused on the dimension of erosion in winter times and pointed of that erosion modelling tools do not take this phenomenon into account so far. This paper presents data from one Russian and one German catchment, which demonstrate the complexity of snowmelt runoff generation and the related erosion and transfer processes. Interannual variability is typical for regions with cold continental climate. Soil frost depth is identified as major factor of influence. Examples for intraannual variability are given for a low mountain area of Germany in a temperate climate.
A model system that links the water balance model WaSim ETH and the sediment and nutrient load AgNPS, was used to simulate the snowmelt runoff generation and erosion. Although the first results are satisfactory ffurther model development is necessary to characterise soil frost. Also, a better parameterisation of soil erodibility in winter is required.
|Ollesch, G., Meißner, R., Rode, M. (2002):
Characterisation and modelling of winter (snow melt) soil erosion processes
Proceedings 12th International Soil Conservation Organization Conference -Soil and Water Conservation: Regional Policies and Action, Beijing 2002
Tsinghua University Press, Beijing, p. 9 - 14