三峡工程对长江流域生态承载力影响的初步分析  

The influence of Three Gorges Project on ecological capacity in Yangtze River basin

作　　者：赵建民[1] 李靖[1] 黄良[1] 王志刚[1] 

机构地区：[1]西北农林科技大学,陕西杨凌712100

出　　处：《水力发电学报》2008年第5期130-134,152,共6页Journal of Hydroelectric Engineering

摘　　要：生态足迹和生态承载力理论为水利工程对生态环境影响的定量化评价提供了有效的途径。根据"等效替代"方法计算表明:三峡工程防洪、发电、航运作用分别减少生态足迹389.07万hm2、1850.17万hm2、4.99万hm2。同时库区淹没和工程占地、渔业减产、土壤渍害和次生盐碱化增加生态足迹30.82万hm2、18.79万hm2、43.77万hm2。正负效益合计增加生态承载力2 150.85万hm2,证明了三峡工程在长江流域可持续发展中的重要地位。The theory of ecological footprint and ecological capacity provides a new way to evaluate the influence of water conservancy project on environment. According to the equivalent method, the Three Gorges Project can decrease ecological footprint in Yangtze River basin as much as 21508.5× 10^3ha, among which the ecological footprint decreased by flood control, waterpower and water transport are respectively 3 890.7 × 10^3ha, 18501.7×10^3 ha and 49.9 ×10^3 ha, the ecological footprint increased by reservoir inundation and construction land use, fisher production loss and soil water logging and secondary salinization are respectively 308.2 × 10^3 ha, 187.9 × 10^3 ha and 437.7 × 10^3 ha, which proves the importance of the Three Gorges Project on the sustainable development in Yangtze River basin.

关 键 词：环境水利 三峡工程 长江流域 生态承载力 生态足迹 

分 类 号：X171[环境科学与工程—环境科学]