干旱区生态环境知识资源中心(Arid): Variations in water use strategies of sand-binding vegetation along a precipitation gradient in sandy regions, northern China

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DOI	10.1016/j.jhydrol.2021.126539
	Variations in water use strategies of sand-binding vegetation along a precipitation gradient in sandy regions, northern China
	Ma, Xiaofei; Zhu, Jianting; Wang, Yong; Yan, Wei; Zhao, Chengyi
通讯作者	Zhao, CY (corresponding author), Nanjing Univ Informat Sci & Technol, Land Sci Res Ctr, 219 Ningliu Rd, Nanjing 210044, Jiangsu, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	600
英文摘要	Water is the most important factor limiting the growth of sand-binding vegetation (SBV) in desert ecosystems. This study explored the water sources and water use strategies of SBV under a natural precipitation gradient. Six typical SBV species were selected, comprising three tree species, Pinus sylvestris, Haloxylon ammodendron and Populus euphratica, and three shrub species, Artemesia ordosica, Caragana korshinshii and Tmarbc ramosissima. The stable isotope values (delta D, delta O-18) of xylem water and potential water sources (precipitation, soil water, and groundwater) of these species under a precipitation gradient in the sandy regions of northern China were measured. In addition, the relative contributions of the different potential water sources to water use by SBV were analyzed using the MixSIAR model. The results indicated that the Local Meteoric Water Lines (LMWLs) of the six SBV species were located on the right side of the Global Meteoric Water Line (GMWL), with the degree of deviation gradually increasing with a decrease in precipitation. The results showed that T. ramosissima, H. ammodendron and P. euphratica mainly used groundwater (GW), whereas P. sylvestris, A. ordosica and C. korshinshii mainly used soil water. Among those species using soil water, P. sylvestris and A. ordosica mainly used shallow soil water (20-80 cm). P. sylvestris and C. korshinshii showed the highest soil water utilization rate of 14%, whereas P. euphratica showed the lowest soil water utilization rate of 2%. The different SBV species showed significantly different soil water utilization rates due to the influence of plant mot distribution (p < 0.001). Among the six SBV species, trees showed a higher GW utilization rate compared to shrubs at 65.74% and 47.29%, respectively, whereas shrubs showed a higher deep soil water utilization rate (140-200 cm) compared to trees at 65.74% and 47.29%, respectively. The precipitation utilization rates amongst the six SBV species were highest in spring, followed by autumn and summer. The utilization of GW by SBV will be intensified in the future due to climate change. However, the stability of T. ramosissima may pose a threat due to its low utilization rate of GW.
英文关键词	Stable isotopes Sandy soils Sand-binding vegetable Water source Northern China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000685246900045
WOS关键词	SYLVESTRIS VAR. MONGOLICA ; GLOBAL WARMING SCENARIOS ; 1.5 DEGREES-C ; SOIL-WATER ; STABLE-ISOTOPES ; DEUTERIUM EXCESS ; CLIMATE-CHANGE ; GROUNDWATER DEPTH ; UPTAKE PATTERNS ; TENGGER DESERT
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	中国科学院新疆生态与地理研究所 ; 中国科学院青藏高原研究所 ; 南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363918
作者单位	[Ma, Xiaofei] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; [Zhao, Chengyi] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing 210044, Peoples R China; [Zhu, Jianting] Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA; [Ma, Xiaofei] Chinese Acad Sci, Res Ctr Ecol & Environm Cent Asia, Urumqi 830011, Peoples R China; [Ma, Xiaofei; Wang, Yong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yan, Wei] Xinyang Normal Univ, Sch Geog Sci, Xinyang 464000, Peoples R China; [Wang, Yong] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaofei,Zhu, Jianting,Wang, Yong,et al. Variations in water use strategies of sand-binding vegetation along a precipitation gradient in sandy regions, northern China[J]. 中国科学院新疆生态与地理研究所, 中国科学院青藏高原研究所, 南京信息工程大学,2021,600.
APA	Ma, Xiaofei,Zhu, Jianting,Wang, Yong,Yan, Wei,&Zhao, Chengyi.(2021).Variations in water use strategies of sand-binding vegetation along a precipitation gradient in sandy regions, northern China.JOURNAL OF HYDROLOGY,600.
MLA	Ma, Xiaofei,et al."Variations in water use strategies of sand-binding vegetation along a precipitation gradient in sandy regions, northern China".JOURNAL OF HYDROLOGY 600(2021).