三江源区生态系统服务价值评价研究

发布时间：2018-01-15 16:18

本文关键词：三江源区生态系统服务价值评价研究　出处：《青海大学》2015年硕士论文　论文类型：学位论文

【摘要】：文章以三江源区生态系统服务为研究对象,构建了三江源区生态系统服务价值评价指标体系。其中,将三江源区生态系统服务价值分为使用价值和非使用价值两类,使用价值包括气体调节、气候调节、涵养水源、土壤保持、废物处理、维持生物多样性、娱乐文化、食物生产和原材料生产9种服务价值;非使用价值包括存在价值、遗产价值和选择价值3种价值。文章以基于专家知识的价值评价方法为基础,构建了三江源区生态系统服务使用价值单价表,评价了三江源区生态系统服务使用价值;采用条件价值评估法对三江源区生态系统非使用价值进行评价;最后得出三江源区生态系统服务总价值。结果表明,三江源区生态系统服务总价值为259734.3亿元,其中使用价值现值为229406.1亿元,非使用价值现值为30328.20亿元,两者分别占总价值的88.31%和11.69%,在所有三级服务价值中,废物处理价值和水源涵养价值比重最大,分别占总价值的21.49%和19.28%。由于非使用价值占总价值较少,导致其包含的存在价值、遗产价值、选择价值占总价值比重也就少,分别为6.23%、2.36%、3.10%。
[Abstract]:In this paper, the value evaluation index system of ecosystem service in Sanjiangyuan region is constructed, which is based on ecosystem service in Sanjiangyuan region. The value of ecosystem services in the source area of the three rivers is divided into two categories: use value and non-use value. The use value includes gas regulation, climate regulation, water conservation, soil conservation, waste treatment, maintaining biodiversity. Entertainment culture, food production and raw material production 9 service values; Non-use value includes existence value, heritage value and selection value. Based on the expert knowledge based value evaluation method, this paper constructs the unit value table of ecosystem service value in Sanjiangyuan region. The use value of ecosystem service in Sanjiangyuan region was evaluated. The non-use value of ecosystem in Sanjiangyuan region was evaluated by the method of conditional value evaluation. The result shows that the total value of ecosystem service is twenty-five tillion nine hundred and seventy-three billion four hundred and thirty million yuan, and the present value of use value is twenty-two tillion nine hundred and forty billion six hundred and ten million yuan. The present value of non-use value is three tillion thirty-two billion eight hundred and twenty million yuan, accounting for 88.31% and 11.69 of the total value, respectively, in all three levels of service value. Waste treatment value and water conservation value of the largest proportion of the total value of 21.49% and 19.28.The non-use value of the total value is less, resulting in its existence value, heritage value. The proportion of selected value to total value is less, 6.23 / 2.36 / 3.10 respectively.
【学位授予单位】：青海大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X826

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