地理科学进展 ›› 2012, Vol. 31 ›› Issue (7): 978-984.doi: 10.11820/dlkxjz.2012.07.017

• 生态系统服务价值评估专栏 • 上一篇    

三江源地区草地生态系统服务价值评估

陈春阳1,2, 陶泽兴1,2,3, 王焕炯1,2, 戴君虎1   

  1. 1. 中国科学院地理科学与资源研究所, 北京100101;
    2. 中国科学院研究生院, 北京100049;
    3. 北京大学城市与环境学院, 北京100871
  • 收稿日期:2012-01-01 修回日期:2012-05-01 出版日期:2012-07-25 发布日期:2012-07-25
  • 通讯作者: 戴君虎(1968-),男,陕西蓝田人,副研究员,主要从事物候学、植物地理学和气候变化影响研究。E-mail:daijh@igsnrr.ac.cn E-mail:daijh@igsnrr.ac.cn
  • 作者简介:陈春阳(1988-),女,湖北襄阳人,硕士研究生,主要从事全球变化研究。E-mail:chency.10s@igsnrr.ac.cn
  • 基金资助:

    国家科技支撑计划项目(2009BAC61B05);国家重大科学研究计划项目(2012CB955304);国家自然科学基金项目(41171043)。

Ecosystem Service Assessment of Grasslands in the Sanjiangyuan Region

CHEN Chunyang1,2, TAO Zexing1,2,3, WANG Huanjiong1,2, DAI Junhu1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    3. College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
  • Received:2012-01-01 Revised:2012-05-01 Online:2012-07-25 Published:2012-07-25

摘要: 三江源地区的草地生态系统对于维持区域生态平衡和保障社会经济可持续发展具有重要意义。本文基于千年生态系统评估(Millennium Ecosystem Assessment, MA)的生态系统服务分类体系, 采用多种方法对三江源草地生态系统的9 项服务价值逐项进行了评估, 得出2000 年三江源草地生态系统服务价值为562.60 亿元, 其中价值最高的两种服务类型依次为气候调节和食物生产, 分别达259.09 亿元和111.68 亿元, 贡献率分别为46.05%、19.85%。按照草地类型划分, 高寒草甸和高寒草原服务价值分别为490.95 亿元、64.68 亿元, 占总服务价值的87.42%和11.52%。虽然沼泽单位面积服务价值最高, 为4230.77 元/hm2, 但在草地生态系统面积中所占比例较低, 总价值相对很低。本文关于三江源草地生态系统的评估结果可以为制定区域生态保护和生态补偿政策提供科学支撑。

关键词: 草地, 价值评估, 三江源地区, 生态系统服务

Abstract: Grassland ecosystem in the Sanjiangyuan Region (Three-River Headwater Region) plays an important role in maintaining ecological balance and guaranteeing sustainable development of social-economic system. By using multiple methods, we assessed the value of nine types of ecosystem services in the Sanjiangyuan region based on the ecosystem services classification system of MA. The results showed that the total value of grassland ecosystem in the Sanjiangyuan Region was 56.26 billion RMB yuan in 2000. The top two values of ecosystem services were climate regulation and food production, which were 11.17 billion RMB yuan and 2.59 billion RMB yuan, with the contribution rate of 46.05% and 19.85% respectively. With respect to different grassland types, alpine meadow and alpine grassland have the values of 49.10 billion RMB yuan and 6.47 billion RMB yuan, contributing 87.42% and 11.52% to the whole value. Swamp has the highest value of 4230.77 RMB yuan per hm2, but its area is small, thus a relatively low value in total. The results of this study provide the scientific support for policy making in ecosystem protection and the practice of ecological compensation.

Key words: ecosystem services, grassland, the Sanjiangyuan Region, value assessment