基于CRITIC-TOPSIS的许昌市农业水土资源评价

Evaluation on Agricultural Water and Soil Resources in Xuchang City Based on CRITIC-TOPSIS

基于农业水土资源的可持续利用,采用层次分析法建立许昌市农业水土资源综合评价指标体系,通过计算水土资源匹配系数来分析水土资源匹配特征,并运用TOPSIS方法计算农业水土资源综合评价指数。结果显示:许昌市多年平均水土资源匹配系数为853 m3/hm2,水土资源匹配状况较好的是鄢陵县和襄城县,较差的则为许昌县;许昌市农业水土资源综合评价指数的整体理想贴进度为0.409~0.560,其中综合评价指数最高的地区是鄢陵县,其理想贴进度为0.560,而综合评价指数最低的为许昌县,其理想贴进度仅为0.409。

Based on the sustainable utilization of agricultural water and soil resources,the comprehensive evaluation index system of agricultural water and soil resources in Xuchang City was established by the analytic hierarchy process.The matching characteristics of water and soil resources were analyzed by calculating the matching coefficient of water and soil resources,and the comprehensive evaluation index of agricultural water and soil resources was calculated by TOPSIS method.The results show that the average matching coefficient of water and soil resources in Xuchang City is 853 m3/hm2.The better matching of water and soil resources is in Yanling County and Xiangcheng County,and the worse is in Xuchang County.The overall ideal progress of the comprehensive evaluation index of agricultural water and soil resources in Xuchang City is 0.409~0.560.The area with the highest comprehensive evaluation index is in Yanling County,and its ideal progress is 0.560.The lowest comprehensive evaluation index is Xuchang County,and its ideal progress is only 0.409.