Construction and Application of Fuzzy Neural Networks Model in Evaluation on the Soil Quality Changes of Sanjiang Plain

Choosing evaluation targets of soil quality changing has fussiness,so fussy BP network model is created through the combination of BP network and fussy mathematics.Experimental area is in Yongfu town,Fujin city,in Sanjiang plain where the trend of soil quality changing is typical.Evaluation model is created through choosing the factor of soil quality changing and corresponding class value.The results show learning capability of the model is well,and the model manifests well robustness with parameter changing.The weight of evaluation target generates automatically through network itself studying,avoids the human interferences of weighting subjectively.So the evaluation result is objective and accurate.The model offered new idea for the research in this domain.