干旱生态脆弱区生态功能区划——以新疆策勒县为例

The Arid Ecosystems Fragile Ecological Function Regionalization——A Case Study in Qira, Xinjiang

本文以位于西北内陆干旱区的典型生态环境脆弱区域为研究靶区,利用GIS和RS技术,在生态环境现状评价的基础上,通过对相关评价因子进行赋值,运用加权指数法、评价指标体系等进行分级.然后对生态环境敏感性、生态服务功能重要性进行评价,依据综合敏感性和重要性评价结果,按照其地理位置和生态特征分为1个一级生态区、3个二级生态亚区和11个生态功能区.生态功能区的划分,有利于明确重要生态功能保护区的空间分布,为今后的生态保护措施和产业发展方向提供了依据.

This paper is located in the northwest inland arid area of typical ecological environment fragile area as the research target area, by using GIS and RS technology, in the present situation of the ecological environment on the basis of evaluation, first based on relevant evaluation factors for assignment, using weighted index method, the evaluation index system of hierarchical. And then evaluate the sensitivity of the ecological environment, ecological services functional importance, on the basis of comprehensive sensitivity and importance evaluation results, into a level 1 ecological zones, three secondary ecological subregions,and 11 ecological function areas, according to their geographical location and ecological characteristics. The division of ecological function areas could help to define the spatial distribution of the important ecological function protected areas, basis for future ecological protection and industrial development direction.