长江上游生态服务功能区域差异研究

提出了生态服务功能及生态服务功能缺失的概念,明确了众多生态学术语之间的关系.并以长江上游为例,探讨生态系统服务功能的区域差异,即分析同一区域不同生态系统服务功能的差异和同一生态服务功能在不同区域贡献率的差异,为生态建设总体规划,重点生态工程选择和布局,生态建设时序确定等提供科学依据.

A Study on the Regional Disparity of Ecological Service Functions at the Upper Yangtze River Basin

The new concept of ecological service and deficiency of ecological service are proposed in this paper. And the relationships of such concepts as ecology, ecosystem, ecological security, et al, are also clarified. Ecological health and ecological function are preconditions for ecological service and ecological security. Taking the Upper Yangtze River as an example, ecological service, ecological function, different types of ecological services, integrated assessment of ecological service function of different regions, and the regional disparity of ecological service are analyzed. There is a great difference in ecological service functions between different ecosystems in an area and different ecosystems may have different contribution rate in terms of the same function of ecological service. During process of ecological reconstruction in Upper Yangtze River, some areas with remarkable ecological effect should be put as a priority in order to improve and optimize total function of ecosystems.