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冰川冻土 ›› 2016, Vol. 38 ›› Issue (3): 804-810.doi: 10.7522/j.issn.1000-0240.2016.0090

• 寒旱区生物学 • 上一篇    下一篇

气候变化和人类活动对三江源地区植被生产力的影响

李作伟1 2 3, 吴荣军1, 马玉平2   

  1. 1. 南京信息工程大学 应用气象学院, 江苏 南京 210044;
    2. 中国气象科学研究院, 北京 100081;
    3. 天津滨海国际机场, 天津 300300
  • 收稿日期:2016-03-06 修回日期:2016-05-11 出版日期:2016-06-25 发布日期:2016-09-21
  • 通讯作者: 马玉平,E-mail:mayp@cams.cma.gov.cn. E-mail:mayp@cams.cma.gov.cn
  • 作者简介:李作伟(1984-),男,山东菏泽人,2008年毕业于天津工业大学,现为南京信息工程大学在读硕士研究生,主要从事农业气象研究.E-mail:zuowei_l@163.com
  • 基金资助:
    公益性行业(气象)科研专项(GYHY201306019);中国气象研究院基本科研业务费专项(2014Y006)资助

Impact of climatechange and human activities on vegetation productivity in the Three-River Headwaters

LI Zuowei1 2 3, WU Rongjun1, MA Yuping2   

  1. 1. College of Applied Meteorology, Nanjing University of Information Science &Technology, Nanjing 210044, China;
    2. Chinese Academy of Meteorological Sciences, Beijing 100081, China;
    3. Tianjin Binhai International Airport, Tianjin 300300, China
  • Received:2016-03-06 Revised:2016-05-11 Online:2016-06-25 Published:2016-09-21

摘要: 利用三江源区1982-2013年18个气象台站地面观测资料、GIMMS和MODIS两个卫星源的遥感监测值,以NDVI值和周广胜模型分别计算植被生产力和气候生产力,将植被生产力与气候生产力的差值定义为人类活动影响。在分析该区域植被生产力和气候生产力变化趋势的基础上,通过分离气候变化和人类活动对植被生产力的影响,从而定量评估两者的影响大小,研究结果表明:(1)在气候变化和人类活动的叠加作用下,三江源地区植被生产力、气候生产力和人类活动影响均趋于好转,平均每10a分别增加179kg·hm-2、154kg ·hm-2和24kg·hm-2;(2)气候变化是影响植被生产力的决定性因素,但人类活动在一定程度上加快了其变化速率,尤其是进入21世纪以来人类活动正面影响较为明显,气候变化和人类活动对植被生产力的贡献率分别为87%和13%。

关键词: 三江源区, 植被生产力, 气候生产力, 人类活动影响

Abstract: The vegetation productivity and climatic productivity were estimated by using meteorological data from 18 weather stations in the Three-River Headwaters (TRH)during 1982 to 2013 and the satellite data form GIMMS and MODIS. Moreover,the effect of human activities were analyzed by calculating difference between vegetation productivity and climate productivity. The results showed that(1)the vegetation productivity,climatic productivity and the effect of human activities all had increased in the nearly 30 years,with the changing rates of 179,154 and 24 kg·hm-2,respectively;(2)climate change wasthe decisive factor impacting the vegetation productivity,and human activities accelerated its changing rate in the TRH. Especially,during the 21st century, the positive impact of human activity has become more obvious,with contribution rates of climate change and human activities to vegetation productivity being 87% and 13%,respectively.

Key words: Three-River Headwaters, vegetation productivity, climatic productivity of vegetation, human activities

中图分类号: 

  • TH774