摘要
针对生态环境研究中的核心问题--敏感性评价,以西天山吐拉苏地区为研究区,用土壤、植被、气候、地形地貌等多种自然生态因子对该区生态系统的敏感程度进行了分析。借助遥感技术,通过图像处理、判读解译等方法,分类提取出研究区内土地利用、草场利用等信息;利用地理信息系统(GIS)空间分析功能,采用层次分析法(AHP),对各个生态敏感性影响因子进行加权叠加,得出综合敏感性指数,据此将吐拉苏地区生态敏感性划分为非敏感、轻度敏感、中度敏感、高度敏感和极高敏感5个等级。并提出了改善该地区生态敏感性对策和建议。
Eco-environment sensitivity evaluation is recognized as the core issue of eco-environment of Tulasu area in Weastern Tianshan Mountain.The sensitivity of ecosystems in this area were analyzed with regard to soil,vegetation,climate,topography and other natural ecological factors.Based on the remote sensing（RS） technology,land use,pasture use and other information were extracted through image processing and interpretation.Based on GIS spatial analysis functions and the analytic hierarchy,the various factors affecting ecological sensitivity were combined by weights,and a synthesized sensitivity index was obtained.Based on the in-depth analysis of the ecological problems and their forming factors,some measures and suggestions were proposed to improve the ecological sensitivity.The results showed that the eco-environment sensitivity of Tulasu area could be divided into five categories,i.e.,non-sensitive area,mildly sensitive area,moderately sensitive area,highly sensitive area and extremely sensitive area.In addition,this study could provide scientific reference and technical support for the study of ecological environmental protection and the rational development of tourism resources and mineral exploitation.
出处
《水土保持通报》
CSCD
北大核心
2012年第6期292-295,317,共4页
Bulletin of Soil and Water Conservation
基金
省部级项目"新疆阿希金矿深部及外围成矿预测研究"(KH106223)
关键词
RS和GIS
吐拉苏地区
敏感性评价
RS and GIS
Tulasu area in Weastern Tianshan Mountain
sensitivity evaluation
