A Semi-empirical Dynamic Soil Acidification Model for Use in Spatially Explicit Integrated Assessment Models for Europe

Résumé du livre

A semi-empirical soil acidification model was developed for use in integrated assessment models on a European scale. The model simulates the time development of base-saturation and aluminium concentration using an empirical relationship with pH. An accompanying data set was developed by overlaying European maps on soils, land-use, climate and altitude followed by a procedure that aggeragates the input data over soil-texture combinations in each EMEP 150 x 150 km grid cell. Model tests show that the model gives results comparable to the SMART model although it overestimates initial base saturation in some areas with high acid input and simulates a faster recovery from acidification than SMART.