摘要
Abstract
Ecological function regionalization is a comprehensive spatial division of geography,which is based on the spatial features of ecosystem,the dominant position of ecological function,ecological sensitivity,the stress of adverse factors,etc.It is basic works in studying the identification of ecological problems,the regional management of ecosystem and the regulation of protection and recovery strategies.The Tarim River was taken as a case,which is the longest inland river,located in the arid lands of southwest China.It has a variety of ecosystems,and its ecology is very fragile because of drought.Due to lack of ecological functional regionalization,layout and object of ecological rehabilitation project have no scientific basis,management and utilization of water resources is poor,and sustainable development is difficult to achieve.In this paper,the status of ecological environment,ecological sensitivity,ecosystem services function,and spatial differentiation were taken into account.And combining the hydrological processes and ecological structures,service function and ecological sensitivity of different regions,four principles are proposed,including regional differentiation of ecological process,similarity and variability of ecological region,,adaptation between landscape and hydrology process,coordination of watershed unit and ecological space.Then,according to the regionalization method and index system,the regionalization formation of the Tarim River Basin was worked out,and the ecological protection,construction emphasis,and measures of each ecological region were also recommended.The Tarim River Basin was divided into 2 ecological regions,4 ecological zones,and 28 ecological sub-regions.The ecological regions included the formation area of mountainous runoff and the consuming area of basin runoff,and the ecological zones included the ecological stability of the southern slope of the Tianshan Mountains,the ecological instability zone of the Pamir-Kunlun Mountains,the ecologically safe zone in the north of the basin and the economically safe zone in the south of the basin.The results can not only provide theoretical support for optimizing distribution and reasonable water resource regulation in Tarim River Basin,but also offer an example of ecological function regionalization for the similar drainage basins.关键词
生态功能区划/塔里木河流域/生态保护Key words
ecological function regionalization/Tarim River Basin/environment protection分类
资源环境
