应用 Arcgis9.3、Mapgis6.7 和县域耕地资源管理信息系统，综合运用层次分析法、模糊数学法等方法分析了武威市凉州区的耕地生产潜力等级及其面积。结果表明:凉州区耕地生产潜力综合评价指数分别是0.721、0.596、0.470、0.320，其对应的潜力等级面积分别是一级潜力耕地面积12 510 hm2，二级潜力耕地面积30 300 hm2，三级潜力耕地面积34 560 hm2，四级潜力耕地面积12 100 hm2，五级潜力耕地面积7 860 hm2。

The Level and Area of the land potential productivity was analyzed in Langzhou district using Arcgis9.3， Mapgis6.7 county land and resources management information system by comprehensive use of the method of analytic hierarchy process(ahp)， fuzzy mathematics method . The results showed that the comprehensive evaluation index of the land patential producticity in Lanzhou district were 0.721， 0.596， 0.470 and 0.320， so it is divided into five potential area， corresponding potential grade area were respectively the cultivated land area of first order potential was 12 510 hm2 . The cultivated land area of second order potential was 30 300 hm2 . The cultivated land area of three level potential was 34 560 hm2 . The cultivated land area of four level potential was 12 100 hm2 . The cultivated land area of five level protential was 7 860 hm2 .

S159.2