干旱区生态环境知识资源中心(Arid): Divergent Responses of Plant Communities under Increased Land-Use Intensity in Oasis-Desert Ecotones of Tarim Basin

Arid

DOI	10.1016/j.rama.2020.03.007
	Divergent Responses of Plant Communities under Increased Land-Use Intensity in Oasis-Desert Ecotones of Tarim Basin
	Zhou, Xiaobing; Tao, Ye; Wu, Lin; Li, Yonggang; Zhang, Yuanming
通讯作者	Zhang, YM (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Beijing South Rd, Urumqi 830011, Xinjiang, Peoples R China.
来源期刊	RANGELAND ECOLOGY & MANAGEMENT
ISSN	1550-7424
EISSN	1551-5028
出版年	2020
卷号	73 期号:6 页码:811-819
英文摘要	The conversion of oasis-desert ecotones for agricultural use is a recent and ongoing trend. To evaluate the impacts of different land-use types and disturbance intensities (distance from farmland) on ecotonal vegetation, we investigated the plant community structure and growth of dominant species in an oasis-desert ecotone in the southern Taklimakan Desert. We established six 100 x 100 m plots, each associated with a particular land-use type in two respective locations: farmland margins and peripheral desert. Twelve and five species, respectively, were recorded at these two sites, with the latter containing fewer annual species. Species richness in the ecotone corresponded to the size of the investigated area. Plant coverage was generally two to eight times higher in the farmland margins than in peripheral desert areas. The species richness, plant coverage, and diversity indices at the two sites varied according to the land-use type. An increased distance from farmland corresponded to changes in the community structure for some land-use types, whereas in most instances, species richness differed by only one species within 100 m of farmland. Plant density and coverage were relatively higher in subplots located 0-20 m away from farmland than in other subplots, although these differences were nonsignificant. Whereas land-use types affected some of the growth indices of the dominant species Alhagi sparsifolia, we observed few significant distance effects. These results indicate that plant community structures and the growth of dominant species vary with landscape heterogeneity or land-use type. The distance effects are dependent on the land-use type. Over a short time period, irrigation is beneficial for the establishment of annual plants around farmland, but it is not beneficial for perennial plants that use ground water. However, further assessments of the long-term effects of agricultural activities on plant community structures, especially on dominant shrubs, are needed. (C) 2020 The Society for Range Management. Published by Elsevier Inc. All rights reserved.
英文关键词	Alhagi sparsifolia Biomass Farmland margins Oasis-desert ecotone Species diversity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000606791000012
WOS关键词	HEIHE RIVER-BASIN ; TRANSITION ZONE ; GROUNDWATER DEPTH ; HEXI CORRIDOR ; SOIL ; VEGETATION ; DESERTIFICATION ; ENVIRONMENT ; IMPACTS ; QUALITY
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349149
作者单位	[Zhou, Xiaobing; Tao, Ye; Li, Yonggang; Zhang, Yuanming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Beijing South Rd, Urumqi 830011, Xinjiang, Peoples R China; [Wu, Lin] Hubei Univ Nationalities, Enshi 445000, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xiaobing,Tao, Ye,Wu, Lin,et al. Divergent Responses of Plant Communities under Increased Land-Use Intensity in Oasis-Desert Ecotones of Tarim Basin[J]. 中国科学院新疆生态与地理研究所,2020,73(6):811-819.
APA	Zhou, Xiaobing,Tao, Ye,Wu, Lin,Li, Yonggang,&Zhang, Yuanming.(2020).Divergent Responses of Plant Communities under Increased Land-Use Intensity in Oasis-Desert Ecotones of Tarim Basin.RANGELAND ECOLOGY & MANAGEMENT,73(6),811-819.
MLA	Zhou, Xiaobing,et al."Divergent Responses of Plant Communities under Increased Land-Use Intensity in Oasis-Desert Ecotones of Tarim Basin".RANGELAND ECOLOGY & MANAGEMENT 73.6(2020):811-819.