Evaluation of farmland productivity based on GIS and fuzzy mathematics theory at county level
基于GIS与模糊数学的县级耕地地力质量评价研究

Taking Xuancheng City of Anhui Province as a study case,this paper,supported by the technique of GIS,decided the evaluation unit by overlapping the soil map and land use type map,selected fourteen influential factors from three aspects,i.e.,soil nutrient content,soil nutrient availability and site condition,established the evaluation system and model of farmland productivity,adopted the methods of Analytical Hierarch program(AHP),Fuzzy Mathematics Theory(FMT) and Integrated Index to synthetically evaluate t...