STUDY ON THE FUZZY EVALUATION OF ENVIORNMENT QUALITY IN NANTONG AREA BASED ON GIS

After analyzed the data of environment quality in Nantong area,we made apprehensive evaluation by the method of fuzzy evaluation and GIS.We completed the classification-zoning divisions of Nantong environment quality,which reflected the whole environment state of Nantong area.According research,we got a conclusion that the area whose environment quality was on the level of "very good" and "commonly" taks 74.4% of whole Nantong area,so that the environment quality of Nantong was relatively good.By the spatial distributing, we found that the middle area of Nantong whose economy developed rapidly had the worse environment,and the biside areas of Nantong,whose economic development droped behind had the cleaner environment.The method of fuzzy evaluation of environment quality based on GIS gathers the advantage characters of fuzzy evaluation and GIS,and realizes the evaluation result visible.