气候变化领域集成服务门户(CCPortal): Effects of water and salinity on plant species composition and community succession in Ejina Desert Oasis, northwest China

CCPortal

DOI	10.1007/s12665-015-4823-7
	Effects of water and salinity on plant species composition and community succession in Ejina Desert Oasis, northwest China
	Xi, Haiyang; Feng, Qi; Zhang, Lu; Si, Jianhua; Chang, Zongqiang; Yu, Tengfei; Guo, Rui
发表日期	2016
ISSN	1866-6280
EISSN	1866-6299
卷号	75 期号:2
英文摘要	Ecologic patterns and community succession are generally controlled by hydrologic mechanisms, especially for plant distributions which are sensitive to habitat conditions. The hydrology characteristics of ecosystems mainly influenced plant ecological processes in water and salinity changes. In this paper, we analyzed the composition and characteristic of natural plant community, divided the plant community classes and discussed the effect of water and salinity gradients on plant species and community classes in Ejina Desert Oasis. The results demonstrated that Populus euphratica, Tamarix chinensis and Phragmites communis were the most important plant species that had the highest important values among forest, shrubs and herbaceous. Six plant community patterns were classified by cluster analysis in Ejina Desert Oasis. Species richness and species diversity were the highest near West River and East River channels of the core oasis area. The distributions of plant community were mainly influenced by the following factors: distance from river channel, groundwater level, soil water content, soil salinity and groundwater salinity. The water and salinity factors, which controlled the distributions of plant, were the main driving forces for ecosystem succession. The plant community succession is becoming toward the type of shrub + herb or low shrub with very drought-tolerant from the type of forest + shrub + herb with tall and high water consumption, when habitat conditions change from good to poor. The water gradients had more significant and more directed effect than salinity gradients on plant species and communities.
关键词	Water and salinity gradients Species composition Community succession Ejina Desert Oasis
学科领域	Environmental Sciences & Ecology; Geology; Water Resources
语种	英语
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
来源期刊	ENVIRONMENTAL EARTH SCIENCES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111888
作者单位	Chinese Acad Sci, Key Lab Ecohydrol & Integrated River Basin Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xi, Haiyang,Feng, Qi,Zhang, Lu,et al. Effects of water and salinity on plant species composition and community succession in Ejina Desert Oasis, northwest China[J]. 中国科学院西北生态环境资源研究院,2016,75(2).
APA	Xi, Haiyang.,Feng, Qi.,Zhang, Lu.,Si, Jianhua.,Chang, Zongqiang.,...&Guo, Rui.(2016).Effects of water and salinity on plant species composition and community succession in Ejina Desert Oasis, northwest China.ENVIRONMENTAL EARTH SCIENCES,75(2).
MLA	Xi, Haiyang,et al."Effects of water and salinity on plant species composition and community succession in Ejina Desert Oasis, northwest China".ENVIRONMENTAL EARTH SCIENCES 75.2(2016).