干旱区生态环境知识资源中心(Arid): Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern China

Arid

DOI	10.1007/s40333-019-0055-0
	Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern China
	Zhao, Peng 1,2,3,4; Qu, Jianjun1,4 ; Xu, Xianying 2,3; Yu, Qiushi 2,3; Jiang, Shengxiu 2,3; Zhao, Heran 2,3
通讯作者	Qu, Jianjun
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2019
卷号	11 期号:3 页码:461-476
英文摘要	Environmental heterogeneity significantly affects the structure of ecological communities. Exploring vegetation distribution and its relationship with environmental factors is essential to understanding the abiotic mechanism(s) driving vegetation succession, especially in the ecologically fragile areas. In this study, based on the quantitative analysis of plant community and environmental factors in 68 plots at 10 different transects in the Minqin oasis-desert ecotone (ODE) of northwestern China, we investigated desert vegetation distribution and species-environment relationships using multivariate analysis. Two-way indicator species analysis (TWINSPAN), detrended correspondence analysis (DCA), and canonical correspondence analysis (CCA) methods were used. A total of 28 species, belonging to 27 genera in 8 families, were identified. Chenopodiaceae, Zygophyllaceae, Gramineae, and Leguminosae were the largest families. Annual and perennial herbs accounted for 28.60% of the total number of plants, while shrubs (42.90%) were the most dominant. Nitraria tangutorum was the constructive species of the desert plant community. We divided the 68 plots surveyed in this study into 7 community types, according to the results of TWINSPAN. The distribution of these 7 communities in the DCA ordination graph showed that species with a similar ecotype were clustered together. Results of CCA indicated that groundwater was the dominant factor influencing vegetation distribution, while distance between plot and oasis (Dis) and soil electrical conductivity (EC) were the local second-order factors. Our study suggests that optimizing the utilization of groundwater in oases is key to controlling the degradation of desert vegetation. The favorable topographic conditions of sand dunes should be fully utilized for vegetal dune stabilization, and the influence of soil salinity on the selection of afforestation tree species should be considered.
英文关键词	TWINSPAN classification ordination desert plant groundwater oasis-desert ecotone species-environment relationship Minqin
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000474563200011
WOS关键词	GROUNDWATER DEPTH ; WATER-USE ; COMMUNITY STRUCTURE ; POPULUS-EUPHRATICA ; TRANSITIONAL ZONE ; PLANT-COMMUNITIES ; SPATIAL-PATTERN ; EDAPHIC FACTORS ; JARAN DESERT ; SANDY LAND
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216791
作者单位	1.Chinese Acad Sci, Key Lab Desert & Desertificat, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; 2.Gansu Desert Control Res Inst, State Key Lab Breeding Base Desertificat & Aeolia, Lanzhou 730070, Gansu, Peoples R China; 3.Gansu Minqin Natl Field Observat & Res Stn Ecosys, Minqin 733000, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Peng,Qu, Jianjun,Xu, Xianying,et al. Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern China[J],2019,11(3):461-476.
APA	Zhao, Peng,Qu, Jianjun,Xu, Xianying,Yu, Qiushi,Jiang, Shengxiu,&Zhao, Heran.(2019).Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern China.JOURNAL OF ARID LAND,11(3),461-476.
MLA	Zhao, Peng,et al."Desert vegetation distribution and species-environment relationships in an oasis-desert ecotone of northwestern China".JOURNAL OF ARID LAND 11.3(2019):461-476.