Dynamic Assessment and Sustainability Strategies of Ecological Security in the Irtysh River Basin of Xinjiang, China  

作　　者：FAN Jie ABUDUMANAN Ahemaitihali WANG Li ZHOU Daojing WANG Zhao LIU Hanchu 

机构地区：[1]Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100190,China [2]Institutes of Science and Development,Chinese Academy of Sciences,Beijing 100190,China [3]School of Economics and Management,University of Chinese Academy of Sciences,Beijing 100190,China [4]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Geographical Science》2023年第3期393-409,共17页中国地理科学（英文版）

基　　金：Under the auspices of National Natural Science Foundation of China(No.42230510);the Major Science and Technology Projects in Altay Region(No.E0035219)。

摘　　要：The drylands of China are extensive,and they are home to more than one-third of the country’s population.However,the watershed territories of the drylands,where the majority of human activities are concentrated have long experienced strained human-land relationships,culminating in ecological security concerns.Correspondingly,it is essential to carry out a comprehensive assessment of the ecological security of dryland watersheds and to identify the key factors influencing ecological security in order to formulate strategies that ensure the sustainability of drylands.Premised on the Driving-Pressure-State-Impact-Response(DPSIR)model,this study developed an ecological security index and applied it to the Irtysh River Basin of Xinjiang,China,from 2000 to 2020.The obstacle degree model was applied to reveal the obstacles in two dimensions:criterion level and indicator level.The findings suggested that the ecological security comprehensive index in the Irtysh River Basin has increased significantly from 2000 to 2020,irrespective of the fact that it decreased during the study period and then increased.The ecological security level changed from‘critically safe’in 2000 to‘general safety’in 2020,with the state subsystem and pressure subsystem becoming ecological security weaknesses.The primary factors influencing the ecological security of the study area were water consumption,the area of high-efficiency water-saving irrigation,the proportion of wetland area,vegetation coverage,and livestock population.The ecological security of different counties in the basin varies greatly,whereas the factors that influence ecological security showed both similarities and differences among the counties.In light of on the findings,we proposed that future strategies for ecological security enhancement should concentrate on enacting the policy of localizing spatial differentiation,optimizing industrial structure,strengthening scientific and technological support in the field of water conservation,bolstering the treatment capacity

关 键 词：SUBSYSTEM WATERSHED DIMENSIONS 

分 类 号：X826[环境科学与工程—环境工程]