干旱区生态环境知识资源中心(Arid): Quantitative Stable Isotope Tracing of Water Uptake in Cynanchum sibiricum during Its Growth Period in Arid Areas of Northwest China

Arid

DOI	10.3390/w14091422
	Quantitative Stable Isotope Tracing of Water Uptake in Cynanchum sibiricum during Its Growth Period in Arid Areas of Northwest China
	Dong, Haibiao; Chen, Zongyu; Hao, Jing; Wang, Jinzhe; Zhang, Guanghui
通讯作者	Zhang, GH
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:9
英文摘要	Vegetation root water uptake plays a significant role in water transport processes and has multiple effects along the soil-vegetation-atmosphere interface, particularly in semi-arid and arid ecosystems. The objective of this study was to quantitatively examine the water uptake in Cynanchum sibiricum, a common desert rattan plant in arid regions, during its growth period, as well as to assess the relevance of the contributions of various water sources via a multivariate linear mixed model based on water-stable isotopes and eliminating the significant short-term impact of precipitation pulses on root water uptake. The results indicated that when the influence of a precipitation event was minimized, 0-10 cm soil water was the dominant water source for Cynanchum sibiricum in its growth phase, and that the species' relative uptake of rainfall was positively proportional to that of 10-70 cm soil water while negatively proportional to that of 0-10 cm soil water. We concluded that Cynanchum sibiricum relies on its active roots extending transversely to extract water from shallow soil to survive under extreme drought conditions and would be inseparable from the symbiosis formed with other deep-rooted vegetation. Additional research into disentangling the water transport processes and studying the ecohydrological feedback along the soil-vegetation interface in arid ecosystems would be beneficial and could contribute to the evidence-based management of water resources for ecological protection.
英文关键词	root water uptake soil-vegetation-atmosphere interface stable water isotopes arid desert ecosystem
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000794533600001
WOS关键词	TAMARIX-RAMOSISSIMA ; DEPTH ; GROUNDWATER ; ZONE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394781
推荐引用方式 GB/T 7714	Dong, Haibiao,Chen, Zongyu,Hao, Jing,et al. Quantitative Stable Isotope Tracing of Water Uptake in Cynanchum sibiricum during Its Growth Period in Arid Areas of Northwest China[J],2022,14(9).
APA	Dong, Haibiao,Chen, Zongyu,Hao, Jing,Wang, Jinzhe,&Zhang, Guanghui.(2022).Quantitative Stable Isotope Tracing of Water Uptake in Cynanchum sibiricum during Its Growth Period in Arid Areas of Northwest China.WATER,14(9).
MLA	Dong, Haibiao,et al."Quantitative Stable Isotope Tracing of Water Uptake in Cynanchum sibiricum during Its Growth Period in Arid Areas of Northwest China".WATER 14.9(2022).