| 藏北高原草地生态系统研究进展 |
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| 引用本文： | 武建双,沈振西,张宪洲.藏北高原草地生态系统研究进展[J].农业科学与技术,2009,10(3):148-152. |
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| 作者姓名： | 武建双 沈振西 张宪洲 |
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| 作者单位： | 武建双,WU Jian-shuang(中国科学院地理科学与资源研究所,北京,100101;中国科学院研究生院,北京,100039);沈振西,张宪洲,SHEN Zhen-xi,ZHANG Xian-zhou(中国科学院地理科学与资源研究所,北京,100101) |
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| 基金项目： | 国家科技支撑计划，国家自然科学基金 |
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| 摘 要： | 藏北高原又称“羌塘”，位于北纬29°53’-36°32’、东经78°41’-92°16’，面积达59．5万km^2，海拔高度4600-5100m。该区天然草地资源丰富，各类天然草地面积达4800万hm^2，占西藏自治区天然草地面积的59％，是西藏的主要牧区。作为我国长江、怒江、澜沧江等主要江河的源地，藏北高原被誉为“中华水塔”，同时也是全球气候变化的敏感区和启动区。在全球气候变化驱动和不合理人类活动的干扰下，藏北草地生态系统发生了不同程度的退化。
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| 关 键 词： | 藏北高原 草地 生态系统 天然草地 |
Advances in Grassland Ecosystem Research in Northern Tibetan Plateau |
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| WU Jian-shuang,SHEN Zhen-xi,ZHANG Xian-zhou.Advances in Grassland Ecosystem Research in Northern Tibetan Plateau[J].Agricultural Science ＆ Technology,2009,10(3):148-152. |
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| Authors: | WU Jian-shuang SHEN Zhen-xi ZHANG Xian-zhou |
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| Institution: | 1. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101 ; 2. Graduate University of Chinese Academy of Sciences, Beijing 100039) |
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| Abstract: | With the aggravation of global change, the response and adaptation of the unique ecosystem in Qinghai-Tibet Plateau to global change have been increasingly concerned by scientific community day by day, which makes the sensitivity and fragility of this ecosystem in response to global change widely recognized by scholars. On the basis of introducing the present research process on the degenerate mechanisim, measures of and approaches to recovery, carbon cycle and primary productivity toward global change, we put forward several propositions on studying the alpine grassland ecosystem in Northern Tibetan Plateau. |
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| Keywords: | Northern Tibetan Plateau Grassland degeneration Global changes Carbon cycle Primary productivity |
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