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Position: Home > Articles > Evaluation of ecological services value of mountain shrubby-grassland ecosystem in Lhasa-river valley region——A case study of Dazi County Pratacultural Science 2010,27 (12) 31-35

拉萨河谷山地灌丛草地生态系统服务价值评价——以拉萨达孜县为例

作  者:
赵海珍;李文华;马爱进;黄瑞玲
单  位:
环境保护部环境工程评估中心;中国标准化研究院;中国科学院地理科学与资源研究所;成安县综合职业技术学校
关键词:
拉萨河谷;山地灌丛草地;生态系统服务功能;评价
摘  要:
以拉萨河谷地区达孜县为例,运用市场价值法、替代工程法、影子价格法等方法对山地灌丛草地生态系统生产产品、固定CO2、释放O2、涵养水分、维持营养循环等服务功能进行计算。结果表明,达孜县山地灌丛草地生态系统各项服务功能的总价值为265.03万元/a,各项服务功能的价值依次为:产品价值45.60万元/a(17.20%)、固定CO2价值83.80万元/a(31.62%)、释放O2价值113.33万元/a(42.76%)、涵养水分价值13.16万元/a(4.97%)、营养循环价值9.14万元/a(3.45%)。由此可知,达孜县山地灌丛草地生态系统提供了巨大的生态服务,其释放O2的服务功能尤为突出。
译  名:
Evaluation of ecological services value of mountain shrubby-grassland ecosystem in Lhasa-river valley region——A case study of Dazi County
作  者:
ZHAO Hai-zhen1,LI Wen-hua2,MA Ai-jin3,HUAGN Rui-ling4(1.Appraisal Center for Environment and Engineering,SEPA,Beijing 100012,China;2.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China;3.China National Institute of Standardization,Beijing 100088,China;4.Vocational Technical School of Cheng'an County,Hebei Handan 056700,China)
关键词:
Lhasa-river valley;mountain shrubby-grassland;ecosystem services;valuation
摘  要:
Selecting Dazi County as an example,different methods,including market value,substitution engineering and shadow price,were used to calculate the ecological services value of mountain shrubby-grassland ecosystem in Lhasa-river valley.The results of this study showed that the total value of mountain shrubby-grassland ecosystem services was 265.03×104 Yuan in Dazi County,consisting of 45.60×104 Yuan production value with the percent of 17.20%,83.80×104 Yuan fixation of CO2 with of the percent of 31.62%,113.33×104 Yuan release of O2 with the percent of 42.76%,13.16×104 Yuan water holding with the percent of 4.97%,and 9.14×104 Yuan nutrient circle maintaining with the percent of 3.45%.This study indicated that the mountain shrubby-grassland ecosystem provides great ecological services value,and the release of O2 was the most important service.

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