Ecological assets valuation of the Tibetan Plateau
Ecological assets valuation of the Tibetan Plateau
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发表时间：
2003
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通讯作者：
Xie Gao
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作者：
Xie Gao
以中国1：100万自然资源图为基础，划分了森林、草原、农田、湿地、水体、荒漠6大类生态资产。在地理信息系统的支持下，编制了青藏高原1：4万生态资产图，并计算了相关数据。根据Costanza等人(1997年)的部分全球生态系统服务价值评估结果，结合中国专家对S生态系统调查问卷的回复，建立了中国陆地生态系统的生态系统服务价值单位面积。以生态资产价值表为基础，按生物量调整价格，建立了中国陆地生态系统的生态服务价值单位面积。对青藏高原的生态资产价值进行了估算。结果表明，青藏高原每年的生态系统服务价值约为9363.9×108元，占中国年生态系统服务价值的17.68%，占世界生态系统服务价值的0.61%。其中，生态系统S提供的土壤形成和配置价值最高，占总生态系统服务价值的19.3%，其次是废物处理价值16.8%，水源涵养价值16.5%，生物多样性价值16%。森林和草原生态系统S提供了主要的生态系统服务价值。分别占不同生态系统类型总价值的31.3%和48.3%。
Based on a series of1∶1000000maps of natural resources of China,6categories of ecological assets were divided,which included forest,grassland,farmland,wetland,water body and desert.By means of GIS,the1∶4000000Ecological Assets Map of Tibetan Plateau was compiled and the relative data were calculated.According to partial global ecosystem services value evaluation results obtained by Costanza et al.(1997)along with responses of ecological questionnaire s from specialists of China,this paper established the ecosystem services value unit area of Chinese terrestrial ecosystems.We used the ecological assets value table as a basis and also adjusted price value by biomass and then,the ecological assets value of the Tibetan Plateau was estimated.The results indicated that ecosystem services value of Tibetan Plateau is some 9363.9×10 8 yuan annually,accounting for17.68%of annual ecosystem services value of China and0.61%of the world.The value of soil formation and disposition provided by ecosys-tem s is the highest,which occupies19.3%of the total ecosystem services value and then,the value of waste treatment takes up16.8%,water conservation value,16.5%and biodiversity,16%.The forest and the grassland ecosystem s offered the main ecosystem services value,being31.3%and48.3%of the total value provided by different ecosystem types,respectively.