长江源区和黄河源区生态系统功能变化的对比研究  

Quantification Study on Ecosystem Service Functions in Source Regions of the Yangtze River and the Yellow River

作　　者：陈克龙[1,2] 李双成[2] 李迪强[3] 陈英玉[4] 朵海瑞[3] 王永生[1] 

机构地区：[1]青海师范大学生命与地理科学学院,西宁810008 [2]北京大学环境学院,北京100871 [3]中国林业科学院,北京100091 [4]中国地质科学院,北京100081

出　　处：《生态经济》2008年第11期32-35,共4页Ecological Economy

基　　金：“973”项目“青藏高原环境变化及其对全球变化的响应与适应对策”(编号:2005CB422000);国家科技支撑计划项目“生物多样性对气候变化的响应研究”(编号:2007BAC03A08-5)

摘　　要：文章根据长江源区和黄河源区1986年和2000年的TM遥感影像解译数据,选取基于货币量的价值量评价法,应用Costanza生态系统服务价值算法,分析了长江、黄河源区区域生态功能价值的动态变化。结果表明:1986～2000年长江源区、黄河源区的生态系统功能总体呈下降趋势,生态系统服务价值分别减少199亿元和30亿元,长江源区的生态系统功能缺失明显高于黄河源区;从功能分析,长江源区的气候调节功能、黄河源区的水源涵养功能变化最为显著;从结构分析,草地、湿地、水域是生态系统服务价值的主要构成,长江源区和黄河源区生态系统功能变化的主要驱动力存在根本差异。Based on remote data of TM in 1986 and ETM in 2000 in the source regions of the Yangtze River and the Yellow River, this paper evaluated the ecosystem service values in these areas according to the quantification method proposed by Costanza, and then revealed the variations of various values of ecosystem services. The results show that there is a general decreasing trend of ecosystem service values in source regions of the Yangtze and the Yellow River withl9.9 billions Yuan and 3 billions Yuan respectively, obviously a greater loss occurred in the source region of the Yangtze River. As to the functions, there are significant changes of climate regulation in the source region of the Yangtze River and water conservation in the source region of the Yellow River. The ecosystem services mainly consist of grassland, wetland and water bodies. The driving forces of ecosystem service functions are different in two areas, i.e. the significant decrease of wetland is the main cause of ecosystem function changes in source region of the Yangtze River, and the integrative variations of wetland and water bodies reduce the functions in source region of the Yellow River.

关 键 词：生态功能 价值变化 长江源区 黄河源区 

分 类 号：F062.2[经济管理—政治经济学] G258.9[文化科学—图书馆学]