干旱区生态环境知识资源中心(Arid): Water Resource Management Implications for a Desert Oasis From Tree-Ring δ18O Variations in Populus Euphratica in Northwest China

Arid

DOI	10.1029/2022WR031953
	Water Resource Management Implications for a Desert Oasis From Tree-Ring δ18O Variations in Populus Euphratica in Northwest China
	Li, Qiang; Liu, Yu; Meko, David M.; Nakatsuka, Takeshi; Pan, Yingnan; Song, Huiming; Liu, Ruoshi; Sun, Changfeng; Fang, Congxi
通讯作者	Li, Q
来源期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
EISSN	1944-7973
出版年	2022
卷号	58 期号:4
英文摘要	Paleoclimatic data has often been applied to demonstrate the influence of anthropogenic activities on runoff to desert rivers, and such features as reservoirs are clearly known to influence available water in downstream riparian settings. The impact of human activities on the hydrology of a downstream desert oasis is, however, an open question. High-resolution hydroclimate paleo-reconstructions for desert oases are lacking, partly because paleoclimate proxies in extremely dry deserts are insensitive to extremely low precipitation. Here, we first attempt to reconstruct regional precipitation (r = -0.743, p < 0.001, n = 49) for the interval 1886-2009 from the stable oxygen isotope ratio (delta O-18) of five Populus euphratica trees growing in the Ejina Oasis, on the lower reaches of the Heihe River in extremely arid Northwest China. The delta O-18 series for P. euphratica in the oasis (similar to 900 m a.s.l) abruptly increases relative to an delta O-18 series of Qinghai spruce (Picea crassifolia) growing in upper limit of forest (similar to 3,000 m a.s.l) in Longshou Mountain (middle reaches of the Heihe River) after about 2000, when the Ecological Water Diversion Project on the Heihe River was implemented. This finding implies that the Ejina Oasis suffered from serious drought during the last decade, or at least that the Oasis is stressed more than expected by current climate conditions. Other evidence also indicates that human activities contributed to a decrease in air moisture in the Ejina Oasis after 2000. To mitigate water stress on the oasis, we recommend some practical measures to ensure the rational development of the desert oasis.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000777656300001
WOS关键词	OXYGEN-ISOTOPE RATIOS ; RELATIVE-HUMIDITY ; EJINA BASIN ; GROUNDWATER ; VALIDATION ; DELTA-C-13 ; HYDROGEN ; SAMPLES ; RECORD ; REGION
WOS类目	Environmental Sciences ; Limnology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394896
推荐引用方式 GB/T 7714	Li, Qiang,Liu, Yu,Meko, David M.,et al. Water Resource Management Implications for a Desert Oasis From Tree-Ring δ18O Variations in Populus Euphratica in Northwest China[J],2022,58(4).
APA	Li, Qiang.,Liu, Yu.,Meko, David M..,Nakatsuka, Takeshi.,Pan, Yingnan.,...&Fang, Congxi.(2022).Water Resource Management Implications for a Desert Oasis From Tree-Ring δ18O Variations in Populus Euphratica in Northwest China.WATER RESOURCES RESEARCH,58(4).
MLA	Li, Qiang,et al."Water Resource Management Implications for a Desert Oasis From Tree-Ring δ18O Variations in Populus Euphratica in Northwest China".WATER RESOURCES RESEARCH 58.4(2022).