干旱区生态环境知识资源中心(Arid): Plant water use strategies in the Shapotou artificial sand-fixed vegetation of the southeastern margin of the Tengger Desert, northwestern China

Arid

	Plant water use strategies in the Shapotou artificial sand-fixed vegetation of the southeastern margin of the Tengger Desert, northwestern China
	Zhao Liangju; Wang Xiaogang; Zhang Yucui; Xie Cong; Liu Quanyu; Meng Fei
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2019
卷号	16 期号:4 页码:898-908
英文摘要	Stable oxygen and hydrogen isotopic compositions (delta~(18)O and deltaD) of plant xylem water and its potential water sources can provide new information for studying water sources, competitive interactions and water use patterns of plants. The contributions of different water sources to three plants, Hedysarum scoparium (HS), Caragana Korshinskii (CK) and Artemisia ordosica (AO), were investigated in the artificial sand-fixed vegetation of Shapotou, the southeastern margin of the Tengger Desert of northwestern China, based on meteorological data and delta~(18)O and deltaD values of precipitation, groundwater, soil water and xylem water of HS, CK and AO. Our results indicated that soil water infiltration through precipitation was the main water source of the artificial sand-fixed vegetation. Obvious differences in soil water content and in delta~(18)O of soil water and xylem water were found among different seasons. No relationship was found between the delta~(18)O in plant xylem water and in soil water in January. The same water use patterns were found in CK, HS and AO in May, suggesting they have the same water sources. The different water sources of CK, HS and AO in August indicate that water competition occurred. In addition, the main water sources of CK, HS and AO in August mainly come from shallow soil water, while they use relatively deep soil water in May. This phenomenon is related to the differences of soil water content throughout soil profile, precipitation, transpiration and water competition under different growth periods. The water use patterns of CK, HS and AO respond to soil water content throughout the soil profile and their competition balance for water uptake during different growth season. The results indicate that these sandfixed plants have developed into a relatively stable stage and they are able to regulate their water use behavior as a response to the environmental conditions, which reinforces the effectiveness of plantation of native shrubs without irrigation in degraded areas.
英文关键词	Plant water source Stable hydrogen and oxygen isotopes Artificial and sand-fixed vegetation in Shapotou
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6470954
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336088
作者单位	Zhao Liangju, College of Urban and Environmental Sciences, Northwest University;;Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity;;, Xi'an;;Lanzhou, ;; 710127;;730000.; Wang Xiaogang, College of Urban and Environmental Sciences, Northwest University, Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Xi'an, Shaanxi 710127, China.; Xie Cong, College of Urban and Environmental Sciences, Northwest University, Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Xi'an, Shaanxi 710127, China.; Meng Fei, College of Urban and Environmental Sciences, Northwest University, Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Xi'an, Shaanxi 710127, China.; Zhang Yucui, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Key Laboratory of ...
推荐引用方式 GB/T 7714	Zhao Liangju,Wang Xiaogang,Zhang Yucui,et al. Plant water use strategies in the Shapotou artificial sand-fixed vegetation of the southeastern margin of the Tengger Desert, northwestern China[J],2019,16(4):898-908.
APA	Zhao Liangju,Wang Xiaogang,Zhang Yucui,Xie Cong,Liu Quanyu,&Meng Fei.(2019).Plant water use strategies in the Shapotou artificial sand-fixed vegetation of the southeastern margin of the Tengger Desert, northwestern China.Journal of Mountain Science,16(4),898-908.
MLA	Zhao Liangju,et al."Plant water use strategies in the Shapotou artificial sand-fixed vegetation of the southeastern margin of the Tengger Desert, northwestern China".Journal of Mountain Science 16.4(2019):898-908.