[1]刘军会,高吉喜,王文杰,等.青藏高原植被覆盖变化及其与气候变化的关系[J].山地学报,2013,(02):234.
　LIU Junhui,GAO Jixi,WANG Wenjie().Variations of Vegetation Coverage and Its Relations to Global Climate Changes on the Tibetan Plateau during 1981—2005[J].Mountain Research,2013,(02):234.
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青藏高原植被覆盖变化及其与气候变化的关系()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年02期
页码:
234
栏目:
青藏高原
出版日期:
2013-01-01

文章信息/Info

Title:
Variations of Vegetation Coverage and Its Relations to Global Climate Changes on the Tibetan Plateau during 1981—2005
作者:
刘军会;高吉喜;王文杰;
1. 中国环境科学研究院,北京 100012；
2. 环境保护部南京环境科学研究所,江苏 南京 210042
Author(s):
LIU Junhui;  GAO Jixi;  WANG Wenjie(242)
1. Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
2. Nanjing Institute of Environment Sciences, Ministry of Environmental Protection, Nanjing 210042, China
关键词:
植被覆盖度; 归一化植被指数; 气候变化; 青藏高原
Keywords:
vegetation coverage;  Normalized Difference Vegetation Index (NDVI);  climate changes;  the Tibetan Plateau
分类号:
Q948.11
文献标志码:
A
摘要:
近几十年来,全球气候变化对青藏高原植被覆盖产生了重要影响。基于青藏高原1981—2005年遥感影像及同期气象数据,结合生态学模型,分析了青藏高原植被覆盖度变化趋势及其与气候变化的关系。结果显示,25 a间,青藏高原温度升高、降水量增加,植被覆盖度呈"整体升高、局部退化"趋势;地表植被改善区主要位于植被低覆盖区,退化区主要位于高覆盖区;从不同植被类型看,除针叶林、阔叶林受采伐影响覆盖度下降外,其他植被覆盖度均不同程度的上升;植被覆盖度变化与同期降水量变化、温度变化均呈正相关,且具有明显的区域差异。
Abstract:
Recent global climate changes have an important effect on vegetation coverage on the Tibetan Plateau. Based on the remote sensing images and the meteorological data during 1981—2005, as well as the model of extracting vegetation coverage, the spatialtemporal variations of vegetation coverage and its responses to global climate changes on the Tibetan Plateau were studied. The results revealed that, under the combination effects of the temperature rising and the precipitation increasing, vegetation coverage increased as a whole from 1981 to 2005, except some degradation in small regions of the Tibetan Plateau. The degraded vegetation regions were mainly distributed in the area of higher vegetation coverage, while the improved vegetation regions were in the area of lower vegetation coverage on the Tibetan Plateau. The responses of vegetation coverage to global climate changes varied with different vegetation types. The vegetation coverage of needleleaved forest and broadleaved forest were decreasing due to the serious destruction of woods, while the other vegetation types were increasing. Global climate changes have contributed to an increase of vegetation coverage on the Tibetan Plateau, and the vegetation coverage changes were positively correlated with the changes of precipitation and temperature during 1981—2005. The correlation between vegetation coverage changes and precipitation and temperature variations was obviously different in different regions.

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备注/Memo

备注/Memo:
收稿日期(Received date)：2012-09-21；改回日期(Accepted) : 2013-01-03。
基金项目（Foundation item）：国家高技术研究发展计划（2012AA12A310）资助。[Supported by the National High Technology Research and Development Program of China (Grant No. 2012AA12A310).]
作者简介（Biography）：刘军会（1976-），男，河北人，博士，副研究员，主要从事全球变化生态学研究。[Liu Junhui (1976-), male, born in Hebei, doctor, associate professor, major in research on global change ecology.]E-mail: liujh@craes.org.cn *通讯作者（Corresponding author）: 高吉喜（1963-），男，研究员，博士生导师。[Gao Jixi(1963-), male, professor, Ph D supervisor.] E-mail: gjx@nies.org
更新日期/Last Update: 1900-01-01