An Attempt to Introduce Cultivation and Planning Measures into the Decision-Making Process in Order to Improve Water-Retaining Capacity of River Catchments

摘要

This paper analyzes the capabilities of introducing cultivation (conservation cultivation, direct sowing) and planning (afforestation, change of arable land and permanent grassland under intensive use into extensively used grassland, introduction of midfield tree planting, establishment of midfield boundary strips with perennial grasses and herbaceous plants, formation of buffer zones for surface water) measures in polish planning documents at local level due to the needs of flood control and drought prevention based on improvement of the natural water-retaining capacity of catchments. Analysis was conducted on an example of uniform water body of surface waters in the Odra River basin (Wielkopolska region) by the application of a GIS-based decision support system. Matrix of the decision-making process includes 9 factors (land use, size of fields, fall of land, inundation areas, water-retaining capacity, dominant component of runoff, drained areas, distance from waters, and Natura 2000 areas).