干旱区生态环境知识资源中心(Arid): 干旱地区斑块状植被格局形成的水分驱动机制及其研究进展

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	干旱地区斑块状植被格局形成的水分驱动机制及其研究进展
其他题名	Water driving mechanism of patched vegetation formation in arid areas:A review
	杜建会; 严平; 董玉祥
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2012
卷号	31 期号:8 页码:2137-2144
中文摘要	斑块状分布是植被在水分匮乏环境中长期适应的结果,其演替过程可以作为生态系统响应气候变化和人类活动产生突变的"指示器"。本文通过对斑块状植被的起源、生态水文过程及其对干旱区植被恢复的启示等方面进行综述,提出了我国干旱区植被恢复中目前尚存在的主要问题。认为斑块状植被的形成可能受气候变化、人类活动、植物自身的生物学特性及其对环境胁迫的适应等方面的影响,但不是主要因素,植被斑块和裸地斑块之间在不同空间尺度的水分再分配是其在干旱半干旱地区形成并且能够维持稳定的关键。斑块状植被是一个高效的雨水集流系统,裸地斑块是整个系统径流的"源",而植被斑块是整个系统径流的"汇",保护植被斑块的同时维持一定面积的裸地对于整个生态系统的稳定都具有极其重要的意义。斑块状植被也是一个非常脆弱的生态系统,气候的剧烈波动以及人类的过度活动都可能导致生态系统功能丧失,最终产生不可逆转的影响,因此需要加以严格保护。
英文摘要	Patched distribution of vegetation is the result of the long-term adaptation and self-adjusting of plants in water-limited environment, and the vegetation succession process can be used as the indicator of the abrupt change of ecosystems affected by climate change and human activities. This paper reviewed the origin of patched vegetation, related eco-hydrological processes, and their implications on the vegetation restoration in arid areas, and discussed the existing problems in the vegetation restoration in arid areas. It was considered that the origin of patched vegetation could be affected by the climate change, human activities, reproduction characteristics of plant species and their adaptation to the environmental stress, but the key for the formation and stabilization of patched vegetation in arid areas was the water redistribution in the patches with and without vegetation in different space scales. Bare land is the "source" of the runoff in the whole ecosystem, while patched vegetation is a high-efficient water harvesting system, being the "sink" of the runoff in the whole ecosystem. Therefore, to protect vegetation patch while keeping a certain area of bare land is vital to the water redistribution and vegetation restoration in arid areas. Patched vegetation is also a very fragile ecosystem, both the extreme climate change and the excessive human activities can contribute to the loss of the function of patched vegetation ecosystem, leading to an irreversible consequence, and thus, a strict protection is needed for patched vegetation.
中文关键词	斑块状植被 ; 水分再分配 ; 源 ; 汇 ; 植被恢复
英文关键词	patched vegetation water redistribution "source" "sink" vegetation restoration
类型	Review
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Geology
WOS研究方向	Geology
CSCD记录号	CSCD:4600520
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228510
作者单位	杜建会, 中山大学地理科学与规划学院, 地表过程与资源生态国家重点实验室, 广州, 广东 510275, 中国.; 严平, 北京师范大学, 地表过程与资源生态国家重点实验室, 北京 100875, 中国.; 董玉祥, 中山大学地理科学与规划学院, 广州, 广东 510275, 中国.
推荐引用方式 GB/T 7714	杜建会,严平,董玉祥. 干旱地区斑块状植被格局形成的水分驱动机制及其研究进展[J]. 北京师范大学,2012,31(8):2137-2144.
APA	杜建会,严平,&董玉祥.(2012).干旱地区斑块状植被格局形成的水分驱动机制及其研究进展.生态学杂志,31(8),2137-2144.
MLA	杜建会,et al."干旱地区斑块状植被格局形成的水分驱动机制及其研究进展".生态学杂志 31.8(2012):2137-2144.