基于模糊综合评价法的双流县农用地适宜性评价

Fuzzy Comprehensive Assessment Analysis of Agricultural Land Suitability Evaluation in Shuangliu County

用模糊综合评价分析的数学方法评价双流县农用地适宜性,根据因素因子选择原则及研究区域农用地实际情况建立评价指标体系,再以白家镇这一评价单元为例介绍并演示了模糊综合评价具体实施过程,按照最大隶属度原则确定研究区域农用地适宜性等级。结果表明,双流县现有Ⅱ级适宜度农用地比例为5.53%,Ⅲ级适宜度农用地比例为81.17%,Ⅳ级适宜度农用地比例为13.30%,无Ⅰ级和Ⅴ级适宜度农用地,双流县农用地总体适宜度为Ⅲ级,并对各适宜程度的提高和改善提出了相应建议。经实际操作以及确定结果的检验,证明模糊综合评价法在农用地适宜性评价中的应用是可行的。

In this paper, the method of Fuzzy Comprehensive Assessment Analysis was used in the evaluation of the suitability of agricultural land-using in Shuangliu County. The evaluation index system was established according to the factors selection principle and the actual con- dition of agricultural land in Shuangliu. Baijia town was taken as an evaluation unit to demonstrate the evaluation process. The suitability grade of study area＇ s agricultural land was determined by calculating the subject degree of the fuzzy sets and by the greatest principle the subject degree. The results indicated that ]I degree agricultural land of Shuangliu accounted for 5.53 %, while lit degree for 81.17 %, IV degree for 13.30 %, no I degree and V degree. The total suitability degree of agricultural land of Shuangliu was lit ,which was compara- tively in accordance with the actual situation. It was concluded that Fuzzy Comprehensive Assessment Analysis was feasible in the evaluation of the suitability of agricultural land-using.