THE ADJUSTEMENT OF JRC PEDOTRANSFER RULES AT A SCALE OF 1:200,000

The European Bureau handles the European Database, based on the 1:1,000,000 scale Soil Geographical Map of Europe. One of the four components of this database consists in a series of pedotransfer rules (PTR) allowing to derive a number of additional properties for practical purposes. These PTR are based on expert judgment, being mainly qualitative. Output attributes have been set up on the basis of the environmental parameters required for solving specific problems. The aim of this paper is the adjustment of the European Pedotransfer Rules at national level, on the basis of the 1:200,000 Map. The data sources have been chosen as following: the soil map, the parental material map derived from the 1:1,000,000 soil map, the climatic data from MARS project, DEM, and the LCCS Map. For using the JRC Pedotransfer Rules, several macros have been developed. The outputs are saved as a .txt file, in order to join the main map (soil or LCCS) and to be spatial represented. The results could be used in models of soil water simulation, plant growth, or others soil processes, because there is a need of some new soil parameters, not existing on the soil map or in the databases. The structure of the macros developed for handling the PTR are presented in this paper, as well as some maps of new calculated parameters.