干旱区生态环境知识资源中心(Arid): 塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响

Arid

	塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响
其他题名	Effects of ecological water conveyance on the composition,diversity and stability of plant community in the lower reaches of Tarim River
	徐俏 1; 叶茂 1; 徐海量2 ; 王希义 2; 赵新风 2
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:9 页码:2603-2610
中文摘要	维持干旱区植物群落结构与稳定性对当地环境保护具有重要意义。本研究以塔里木河下游典型的4个断面内的植被为对象,采用样带调查技术,对其植被的群落特征进行了调查。选取2000、2004、2008、2012、2016年调查数据,对离河不同距离的植物群落的物种组成变化进行了分析,并运用物种多样性指数、均匀度指数以及生态优势度等对调查区域群落物种多样性与均匀性进行了分析,综合评估植物群落的稳定性。结果表明:随着生态输水工程的实施,植物群落的物种由输水前的17种增加到输水后的31种;乔灌木所占的比重有所下降,林下草本所占的比重逐渐增加,群落中乔灌草物种搭配更为均衡;总体而言,植物群落的物种多样性指数、均匀度指数均有显著升高,而生态优势度有所降低,因而植物群落更加丰富与均匀;生态输水以来,植物群落的稳定性逐渐升高,但目前仍处于不稳定状态。
英文摘要	The maintenance of structure and stability of plant community is of importance for environmental protection in arid areas. In this study,the characteristics of plant communities along four sections in the lower reaches of Tarim River were investigated using transect methods. The survey data in 2000,2004,2008,2012,and 2016 were used to examine the changes of plant species composition at different distances from the river. Moreover,Shannon index,Alatalo index and ecological dominance were selected to analyze species diversity and evenness. The results showed that species richness increased from 17 to 31 with the implementation of the ecological water conveyance. The proportion of trees and shrubs declined,and the proportion of understory herbaceous species increased,resulting in more balanced collocations of tree-shrub-grass. In general, the Shannon index and Alatalo index of plant community increased significantly,while the ecological dominance decreased,indicating that plant communities were more species-rich and homogeneous. The stability of plant community has increased gradually since the beginning of ecological water transport,but it is unstable.
中文关键词	物种组成 ; 物种多样性 ; 生态输水 ; 植物群落结构 ; 干旱区
英文关键词	species composition species diversity ecological water conveyance plant community structure arid region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6328542
来源机构	中国科学院新疆生态与地理研究所 ; 新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238199
作者单位	1.新疆师范大学地理科学与旅游学院, 乌鲁木齐, 新疆 830054, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	徐俏,叶茂,徐海量,等. 塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响[J]. 中国科学院新疆生态与地理研究所, 新疆师范大学,2018,37(9):2603-2610.
APA	徐俏,叶茂,徐海量,王希义,&赵新风.(2018).塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响.生态学杂志,37(9),2603-2610.
MLA	徐俏,et al."塔里木河下游生态输水对植物群落组成、多样性和稳定性的影响".生态学杂志 37.9(2018):2603-2610.