干旱区生态环境知识资源中心(Arid): 塔里木河上游地区阿拉尔段天然退化生态系统植物群落物种多样性特征分析

Arid

	塔里木河上游地区阿拉尔段天然退化生态系统植物群落物种多样性特征分析
其他题名	Analysis on Biodiversity Characteristics of Natural Plant Community of Degenerative Ecosystems in Upper Reaches of the Trim River, Aral
	郑奕 1; 刘新春 2; 杨金龙 1; 潘晓玲 1
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2005
卷号	12 期号:2 页码:131-134
中文摘要	塔里木河是我国干旱区最长的一条内陆河,同时塔里木河流域也是我国生态环境脆弱地区之一,总体上荒漠化日益加剧,具体表现为土地沙漠化、土壤盐渍化、草场退化、生物多样性减少等,这些都严重的制约了区域社会经济的可持续发展.阿拉尔灌区位于塔里木河上游,从1950年以来,本区垦荒规模逐渐扩大,现已成为塔里木盆地最大的新绿洲.绿洲内部水量不断增加,而绿洲以外的水量却在减少.根据对样地的实际调查资料,采用物种多样性指数、丰富度和均匀度指数对塔里木河上游阿拉尔地区的天然植被的物种多样性进行了分析.结果表明,本研究区内的植物区系组成贫乏,群落结构简单,绿洲-荒漠过渡带的多样性指数和丰富度指数均非常低.通过以上分析并结合实际情况,可以得出了以下结论:本地区天然植被生态系统在人类干扰下普遍存在退化现象,尤其在绿洲-荒漠过渡带,这种现象更为严重,应立即采取有效措施对天然植被特别是过渡带的植被进行生态恢复.
英文摘要	The Tarim River is the longest inland river in arid areas of China. At the same time, it is one of ecological environmental vulnerable areas. The general manifestation is that desertification is deteriorating. Idiographic exhibitions are as follows. Land desertification,soil salinization,grassland degradation, and reduction in biodiversity. All of these seriously destroyed the foundation of regional social and economic sustainable development. Located at the upper reaches of the Tarim River, Alar irrigation area is reclaimed after 1950. With the expansion of irrigation area, Alar irrigation area becomes the largest new oasis in the Tarim Basin. Water quantity has been improved within oasis, but has reduced outward oasis. Based on the inquisitional data of sampling sites,the biodiversity of the natural plant community in Aral area is analyzed by adopting diversity index, richness index and evenness index. The results show that species in this area are poorer and the configuration of community is simple. Species diversity index and richness index of oasis -desert transitional zone are very low. From the above analyses and combining with the practical situation,a conclusion is drawn that the degeneration of plant community which under the people’s interference is generally exist in this area, especially in oasis - desert transitional zone. Effective measures should be taken to restore the natural plant especially in those transitional zone.
中文关键词	退化生态系统 ; 物种多样性指数 ; 荒漠化
英文关键词	degenerative ecosystems biodiversity desertification
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1919446
来源机构	新疆大学 ; 中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206668
作者单位	1.新疆大学, 新疆绿洲生态重点实验室, 乌鲁木齐, 新疆 830046, 中国; 2.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	郑奕,刘新春,杨金龙,等. 塔里木河上游地区阿拉尔段天然退化生态系统植物群落物种多样性特征分析[J]. 新疆大学, 中国气象局乌鲁木齐沙漠气象研究所,2005,12(2):131-134.
APA	郑奕,刘新春,杨金龙,&潘晓玲.(2005).塔里木河上游地区阿拉尔段天然退化生态系统植物群落物种多样性特征分析.水土保持研究,12(2),131-134.
MLA	郑奕,et al."塔里木河上游地区阿拉尔段天然退化生态系统植物群落物种多样性特征分析".水土保持研究 12.2(2005):131-134.