• 论文 •

三江源区生态承载力与生态安全评价及限制因素分析

1. （1 中国科学院地理科学与资源研究所，陆地表层格局与模拟重点实验室，北京100101）（2 中国科学院大学，北京100049）
• 出版日期:2019-07-30 发布日期:2019-07-25
• 通讯作者: 樊江文 E-mail: fanjw@igsnrr.ac.cn
• 基金资助:
中国科学院科技服务网络（STS）计划重点项目（KFJ_STS-ZDTP-013-02），中国科学院A类战略性先导科技专项课题（XDA20090200）；国家重点研发计划项目课题（2017YFC0506505）

An assessment and analysis of constraint factors on ecological carrying capacity and ecological security for the Sanjiangyuan National Park

ZHANG Yaxian 1,2, FAN Jiangwen 1, WANG Suizi 1,2, ZHANG Haiyan 1, GUAN Huiling 1,2

1. (1 Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China) (2 University of Chinese Academy of Sciences, Beijing 100049, China)
• Online:2019-07-30 Published:2019-07-25

Abstract:

The Sanjiangyuan Region is an important component of the national ecological security strategic structure —“Two Screens & Three Zones”—in China, and its ecological security situation has a significant impact on China and even the region of Southeast Asia. Combined with information from field investigations and socioeconomic statistics, this paper adopts related methods of remote sensing parameter inversion, model simulation as well as the analytic hierarchy process and comprehensive index system to evaluate the ecological carrying capacity and ecological security situation of the Three River Sources Region. The results show: (1) the ecological carrying capacity of the Three River Sources Region is at the medium level and presents a pattern of decrease from southeast to northwest; (2) the major constraint factors on the ecological carrying capacity are water conservation quantity, NPP, surface water quality, vegetation coverage and the amount of threatened animals in the Three River Sources Region; (3) the general ecological security of the Three River Sources Region ranges from danger to arelatively safe situation; (4) the ecological carrying capacity is relatively low in the western underdeveloped region where the economic backwardness reduces the degree of local environmental protection effort; and meanwhile, the rapid population growth and the low cultural quality in more developed eastern region also causes conflict between economic development and environmental protection.