生物多样性 ›› 2016, Vol. 24 ›› Issue (2): 127-135.DOI: 10.17520/biods.2015082

所属专题: 生物多样性与生态系统功能

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生态工程实施对羌塘和三江源国家级自然保护区植被净初级生产力的影响

祁威1,2, 摆万奇1, 张镱锂1,2,,A;*(), 吴雪1,2, 李兰晖1,2, 丁明军1,3, 周才平1   

  1. 1 中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室, 北京 100101
    2 中国科学院大学, 北京 100049
    3 江西师范大学地理与环境学院鄱阳湖湿地与流域研究教育部重点实验室, 南昌 330022;
  • 收稿日期:2015-04-01 接受日期:2015-09-29 出版日期:2016-02-20 发布日期:2016-03-03
  • 通讯作者: 张镱锂
  • 基金资助:
    国家自然科学基金(41171080)、中国科学院战略性先导科技专项(XDB03030500) 、国家科技基础性工作专项(2012FY114000)和国家科技支撑项目(2013BAC04B02)

Effects of ecological engineering on net primary production in the Chang Tang and Sanjiangyuan national nature reserves on the Tibetan Plateau

Wei Qi1,2, Wanqi Bai1, Yili Zhang1,2,*(), Xue Wu1,2, Lanhui Li1,2, Mingjun Ding1,3, Caiping Zhou1   

  1. 1 Key Laboratory of Land Surface Pattern and Simulation of CAS, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences (CAS), Beijing 100101
    2 University of Chinese Academy of Sciences, Beijing 100049
    3 Key Laboratory of Poyang Lake Wetland and Watershed Research of Ministry of Education, School of Geography and Environment, Jiangxi Normal University, Nanchang 330022;
  • Received:2015-04-01 Accepted:2015-09-29 Online:2016-02-20 Published:2016-03-03
  • Contact: Zhang Yili

摘要:

为了有效评估生态工程建设对青藏高原典型国家级自然保护区的影响, 基于表征生态系统功能状况的植被净初级生产力变化系列数据, 采用样区对比法系统分析了羌塘和三江源两个国家级自然保护区建立及2004/2005年实施的新生态工程的效果。研究表明: (1) 1982-2009年间, 在10组对比样区中有9组保护区内样区的草地净初级生产力呈波动上升的趋势; (2) 2004年后新生态工程的实施效果良好, 有8组对比样区生态状况转好; (3)在所有高寒草地类型中, 新生态工程对高寒草甸类型样区的保护效果最为显著。

关键词: 生态工程, 自然保护区, 净初级生产力, 三江源, 羌塘, 样区对比法

Abstract:

Long term series of remotely sensed imagery of net primary production (NPP) data could reflect ecosystem health. In this study, we employed NPP to evaluate the effects of ecological engineering (nature reserve and new ecological engineering in 2004 or 2005 techniques) by the sampling area comparison method in the Chang Tang and Sanjiangyuan national nature reserves on the Tibetan Plateau. The results showed that: (1) among the 10 pairs of sampling areas, annual NPP of 9 pairs tended to increase between 1982 and 2009; (2) the new ecological engineering techniques improved the effectiveness of ecosystem conservation, with NPP in 8 pairs of sampling areas increasing faster than before; and (3) among all alpine grassland types, the new ecological engineering techniques remarkably improved the effectiveness of conserving the meadows.

Key words: ecological engineering, nature reserve, net primary production, Sanjiangyuan, Chang Tang, sampling area comparison method