基于GIS的低丘缓坡建设用地适宜性评价——以江西省上犹县为例

Research on Hilly Slope Construction Land Suitability Assessment Based on GIS——A Case of Shangyou County,Jiangxi Province

以上犹县为例,基于GIS平台,在综合考虑低丘缓坡开发要求的自然、社会和生态环境等条件的基础上,构建了评价指标体系,并采用综合指数法评价模型(AHP)对上犹县低丘缓坡建设用地开发适宜性进行了评价。结果表明:上犹县适宜开发、允许开发、限制开发和不适宜开发的低丘缓坡土地资源分别为2 154.7、2 875.21、569.55和678.47 hm2,分别占评价面积的34.32%、45.80%、9.07%和10.81%,初步实现了低丘缓坡建设用地适宜性评价的定量化、系统化和信息化。

Taking Shangyou County as an example,based on GIS platform,considering hilly slope development requirements,including nature,society,and ecology conditions and so on,the evaluation indicator system was constructed. By using AHP,the development suitability of hilly slope construction land was evaluated. The results showed that the hilly slope construction land of suitable exploitation,permit exploitation,limit exploitation and not suitable exploitation is 2 154. 7,2 875. 21,569. 55 and 678. 47 hectares in Shangyou County,accounts for the appraisal total area 34. 32%,45. 80%,9. 07% and 10. 81%. The quantitative,systematical and informational suitability evaluation of constructive land has initially been achieved.