基于GIS的喀斯特山区土地适宜性评价——以安顺镇宁县丁旗镇为例

GIS-based karst mountainous agricultural land suitability evaluation——A case study on Dingqi village of Zhengning of Anshun

研究目的:以贵州省安顺镇宁县丁旗镇为例,就丁旗镇土地开发项目区土地适宜性进行评价研究。研究方法:基于GIS平台,实地采取土样并实验测试,在问卷调查基础上综合应用SPSS数理统计软件,综合喀斯特岩溶山区山地多平地少、土层较薄、基岩裸露率较高和"水文二元结构"等特殊自然状况和社会经济情况进行分析研究,最终确定了喀斯特山区土地适宜性评价的指标体系并得出相应有效地评价结果。研究结果表明:基于GIS平台可有效地对喀斯特山区土地适宜性、适宜等级进行评定。研究结论:基于GIS的土地适宜性评价方法在对喀斯特山区土地适宜性评价中具指导意义,为土地开发项目区域实施方案的设计和制定提供理论基础。

Objective： Zhenning County,Anshun,Guizhou Province,for example the small town flag,the flag on the small town area of land development projects for land suitability evaluation studies.Methods： GIS-based platform,field and laboratory tests of soil samples taken in the comprehensive survey,based on mathematical statistics with SPSS software,integrated karst mountain mountainous plains less,thin soil,exposed bedrock is higher and the ＂hydrological dual structure ＂and other special natural conditions and socio-economic situation analysis,and ultimately determine the karst mountain land suitability evaluation index system to evaluate and draw appropriate and effective results.The results show that： GIS-based platform can be effectively karst mountain land suitability,suitable for grades to be assessed.Findings： GIS-based land suitability evaluation methods in karst mountainous land suitability evaluation in a guide for the implementation of land development project area provide the basis for the design and development.