Abstract

In this report the occurrence probability of 700 plant species has been described in relation to soil moisture, pH, nutrient availability, and salt. Occurrence probability is expressed with simple regression statistics in terms of semi- quantitative Ellenberg indication values. Analysis is based on a very large national data base of vegetation recordings. For each ecoregion of the Netherlands the occurrence probability of the plant species has been analysed separately. Results, regional differences and possible applications in the field of scenario studies and standard setting are discussed.