甘肃省生态敏感性评价  

Ecological Sensitivity Evaluation of Gansu Province

作　　者：刘杰 宋国伟 张小玉 Liu Jie;Song Guowei;Zhang Xiaoyu(Wuwei Basic Geological Survey Technical Service Center,Wuwei 733000,Gansu,China;Wuwei Natural Resources Bureau,Wuwei 733000,Gansu,China)

机构地区：[1]武威市基础地理勘测技术服务中心,甘肃武威733000 [2]武威市自然资源局,甘肃武威733000

出　　处：《绿色科技》2023年第24期1-7,共7页Journal of Green Science and Technology

基　　金：甘肃省自然资源厅科技项目(编号:202249)。

摘　　要：生态敏感性是衡量区域生态环境脆弱性的重要指标之一,其评价结果对区域生态环境保护治理及资源开发利用有着重要的导向作用。以甘肃省为研究区,分别从水土流失、生境质量、地质灾害及水资源4个方面选取了7个敏感性评价因子,结合ArcGIS软件和层次分析法探讨了研究区生态敏感性的时空分布格局及空间分异特征。结果表明:甘肃省生态敏感性整体呈现北低南高的空间分布格局。其中88.43%的区域生态敏感强度以不敏感和轻度敏感为主,主要分布在河西走廊中部及陇中黄土高原区域;7.4%的区域生态敏感强度以高度敏感和极度敏感为主,主要分布在祁连山地和甘南高原地区。Ecological sensitivity is one of the most important indicators of regional eco-environmental vulnerability,and its assessment results play an important role in guiding regional eco-environmental protection and resource development.Taking Gansu province as the study area,this paper selects 7 sensitivity evaluation factors from four aspects of soil and water loss,habitat quality,geological disaster and water resources,etc.Based on ArcGIS software and Analytic Hierarchy Process(AHP),the spatial-temporal distribution pattern and spatial differentiation characteristics of ecological sensitivity were discussed.The results showed that the spatial distribution pattern of ecological sensitivity in Gansu province was low in the north and high in the south.Among them,88.43% of the eco-sensitivity intensity was mainly insensitive and mildly sensitive,mainly distributed in the middle of Hexi Corridor and the middle of Gansu Some Random Place Somewhere;7.4% of the regional ecological sensitivity intensity was highly and extremely sensitive,mainly distributed in Qilian Mountains and Gannan Plateau.

关 键 词：生态敏感性 敏感性评价因子 ArcGIS软件 层次分析法 甘肃省 

分 类 号：X171.1[环境科学与工程—环境科学]