自然资源学报 ›› 2004, Vol. 19 ›› Issue (5): 632-636.doi: 10.11849/zrzyxb.2004.05.013

• 资源生态 • 上一篇    下一篇

拉萨河谷地区青稞农田生态系统服务功能的评价——以达孜县为例

赵海珍1, 李文华1, 马爱进2, 何永涛1   

  1. 1. 中国科学院地理科学与资源研究所 北京100101;
    2. 中国农业科学研究院畜牧研究所,北京100094
  • 收稿日期:2004-03-09 修回日期:2004-04-15 出版日期:2004-10-25 发布日期:2004-10-25
  • 作者简介:赵海珍(1976~),女,河北冀州人,博士生,主要从事生态系统服务功能及其评价的研究。E-mail:haizhen11@btamail.net.cn
  • 基金资助:

    国家自然科学基金重点项目(30230090)。

Valuation of barley agro-ecosystem services in Lhasa-river valley region——A case study of Dazi County

ZHAO Hai-zhen1, LI Wen-hua1, MA Ai-jin2, HE Yong-tao1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101,China;
    2. Institute of Animal Sciences, CAAS, Beijing 100094,China.
  • Received:2004-03-09 Revised:2004-04-15 Online:2004-10-25 Published:2004-10-25

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青稞农田生态系统生产农产品、固定CO2、释放O2、涵养水分、维持营养循环等服务功能进行了计算。结果表明:达孜县青稞农田生态系统各项服务功能的总价值为37249.77×104元,各项服务功能的价值依次为:农产品价值16973.38×104元(45.57%)、释放O2价值10649.81×104元(28.59%)、固定CO2价值7875.03×104元(21.14%)、营养循环价值1478.23×104元(3.97%)、涵养水分价值273.32×104元(0.73%)。由此可知熏达孜县青稞农田生态系统为其经济生产力提供了巨大的生态服务,其农产品生产服务功能尤为突出。

关键词: 拉萨河谷, 农田生态系统, 服务功能评价

Abstract: Agro-ecosystem is very important to our human beings, but the fact is we know veryless about its ecosystem services.So this study selects barley agro-ecosystem of Dazi County in Lhasa-river valley and uses different methods (such as market value,substitution engineering,shadow price)to calculate its value.The result shows that the total value of barley agro-ecosystem services is 37 249.77×104 yuan;the order of various ecosystem services values is respectively production value16 973.38×104 yuan(45.57%),release of O2 10 649.81×104 yuan(28.59%),fixation of CO2 7 875.03×104 yuan(21.14%),nutrient circle maintained 1 478.23×104 yuan(3.97%),and water holding 273.32×104 yuan(0.73%).So agro-ecosystem provides great ecological services to its economic productivity,but the production service is its most important service.

Key words: Lhasa-river valley, agro-ecosystem, evaluation of ecosystem servicess