Broad-Scale Soil Monitoring Through a Nationwide Soil-Testing Database

Abstract : Spatial variability of soil properties strongly influenced by human activity is not well documented by most soil surveys.Soil tests performed at farmers' request represent a large capital of soil information.In France, the results of a large part of these soil tests are continuously gathered in a unique database, the national soil testing database (named BDAT).The aims of the project were to analyse the evolution of soil features within discrete entities over successive time periods