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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (8): 276-281.

所属专题： 农业生态

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

洞庭湖湿地生态系统服务功能效益分析

张运 张贵   

  • 收稿日期:2011-09-24 修回日期:2011-10-31 出版日期:2012-03-15 发布日期:2012-03-15

Analysis on Benefits of Services and Functions of Wetland Ecosystem in Dongting Lake

  • Received:2011-09-24 Revised:2011-10-31 Online:2012-03-15 Published:2012-03-15

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摘要：

为了提高人们对洞庭湖湿地生态系统服务功能价值的认识，针对洞庭湖湿地生态功能受到严重破坏与威胁的现状，采用市场价值法、替代市场法等方法对洞庭湖湿地的水文调节、净化、维持物种多样性、碳固定、营养循环、休闲旅游、保护土壤等生态系统服务功能的价值进行了评价。结果表明：洞庭湖湿地生态系统服务功能价值巨大，其货币价值达239.85×108元/年。在整个生态系统服务功能价值中，水文调节功能价值最大，为107.44×108元/年，占总价值的44.79%，说明洞庭湖在调节长江洪水径流方面发挥着重要作用；维持物种多样性功能的价值最小，为4.89×108元/年，低于世界平均水平，说明洞庭湖生态环境已遭到严重破坏。因此，要在充分认识洞庭湖湿地生态功能价值的基础上，充分发挥其作用，促进洞庭湖湿地生态区域经济的协调发展。

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Abstract:

In order to raise the understanding of ecological services and functions in Dong Lake, in views of its current situation, the author analyzed and valued 7 kinds of services and functions of wetland system in Dongting Lake by using a series of environmental economic methods and mathematics ones. The results showed that it had huge ecological value and its annual value was ￥239.85×108, in which the largest one was the value of hydrological adjusting function, ￥107.44×108 per year, which was worth 44.79% of total value; while the minimum one was the value of biodiversity functions of which annual value was only ￥4.89×108. Therefore, it’s of great urgency to promote coordinated growth of the ecological area.