ENVIRONMENTAL RISK MAPPING FOR AGRICULTURAL PURPOSES IN POLAND
University of Agriculture, Faculty of Geodesy, Krakow
The article deals with problem of environmental risk mapping and management in regard to agricultural land development.
The aim of the paper is to present chosen environmental factors affecting agricultural production in the range of soil erosion, climatic threats to field crops, influence of neighbouring forest on the plant cultivation.
The examples of risk mapping in the review scale concerning area of all Poland will comprise such problems as: water erosion (surface and gully erosion), damages by hail, frequency of heavy rains, damages by slight frosts, flood losses in crops, zones of threat to field crops by unfavourable agroclimatic factors etc. The spatial model of influence of forest and forest animals on agricultural production will also be outlined.
The agricultural risk mapping has a large meaning for the location of agricultural production (regionization of separate crops) and for the farmland valuation.
In conclusions the author outlines proposals concerning environmental risk maps use for the correction of the basic value of the land (real estate) – based on the soil classes and tax districts. It appears among others that the separate environmental risk factor may decrease the basic value of the land by about 20%.