influence of tillage
Influence of Tillage Practices on Runoff Generation Processes in Agricultural Catchments - EBALE
Sponsored by Deutsche Forschungsgemeinschaft (DFG)
Period of Sponsorship: 2006 – 2011
Univ.-Prof. Dr.-Ing. Markus Disse (UniBwM)
Reference number: DI 639/2-1
Contact: Florian Winter
The influence of different tillage practices on runoff formation and runoff concentration will be analysed and physical-based modelled for small catchment areas (lower mesoscale < 6.3 km²). Therefore, data of agricultural catchment areas with conventional, integrated and ecological cultivation are used.
The main focus is to determine the hydrological interaction between the processes which are influenced by different land use and tillage practice and to quantify the consequences of local measures to reduce runoff. The spatial and time series data are available in a fine resolution and important processes (e.g. sealing of soil) are measured separate. Therefore, the processes can be verified, calibrated and validated both separate and in interaction.
Scenarios shall be simulated to quantify the effectiveness of tillage practice and soil coverage on water retention and runoff reduction. Possibilities and limits of flood protection will be analysed.
At last test simulations will be realised with larger raster resolution to get an advice if it is possible to regionalize the scientific findings. For further validation, data of current EU research projects (e.g. WaReLa-project) can be used. If these tests are satisfactory, the transfer of processes and simulations to the upper mesoscale (100-1000 km²) will be carried out in a new project.