干旱区生态环境知识资源中心(Arid): An Experimental Investigation of the Precipitation Utilization of Plants in Arid Regions

Arid

DOI	10.3390/plants13050594
	An Experimental Investigation of the Precipitation Utilization of Plants in Arid Regions
	Feng, Wei; Ma, Xiaoxu; Yuan, Zixuan; Li, Wei; Yan, Yujie; Yang, Wenbin
通讯作者	Li, W
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2024
卷号	13 期号:5
英文摘要	What represents a water source for the ecological restoration of a plant in an arid region is still up to debate. To address this issue, we conducted an in situ experiment in the Ulan Buh Desert of China, to study desert plants absorbing atmospheric water vapor. We selected Tamarisk, a common drought-salt-tolerant species in the desert, for ecological restoration as our research subject, used a newly designed lysimeter to monitor precipitation infiltration, and a sap flow system to track reverse sap flow that occurred in the shoot, branch, and stem during the precipitation event, and observed the precipitation redistribution process of the Tamarisk plot. The results showed that Tamarisk indeed directly absorbs precipitation water: when precipitation occurs, the main stem, lateral branch, and shoot all show the signs of reversed sap flow, and the reversed sap flow accounted for 21.5% of the annual sap flow in the shoot and branch, and 13.6% in the stem. The precipitation event in the desert was dominated by light precipitation events, which accounted for 81% of the annual precipitation events. It was found that light precipitation can be directly absorbed by the Tamarisk leaves, especially during nighttime or cloudy days. Even when the precipitation is absent, it was found that desert plants can still absorb water from the unsaturated atmospheric vapor; even the absorbed atmospheric water vapor was transported from the leaves to the stem, forming a reversed sap flow, as a reversed sap flow was observed when the atmospheric relative humidity reached 75%. This study indicated that the effect of light precipitation on desert plants was significant and should not be overlooked in terms of managing the ecological and hydrological systems in arid regions.
英文关键词	Ulan Buh Desert arid area Tamarisk reverse sap flow atmospheric moisture
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001183063400001
WOS关键词	SOIL-WATER ; ROOTS ; TRANSPIRATION ; ENVIRONMENT ; MOISTURE ; RECHARGE ; LIFE ; FLOW ; SAP ; DEW
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405135
推荐引用方式 GB/T 7714	Feng, Wei,Ma, Xiaoxu,Yuan, Zixuan,et al. An Experimental Investigation of the Precipitation Utilization of Plants in Arid Regions[J],2024,13(5).
APA	Feng, Wei,Ma, Xiaoxu,Yuan, Zixuan,Li, Wei,Yan, Yujie,&Yang, Wenbin.(2024).An Experimental Investigation of the Precipitation Utilization of Plants in Arid Regions.PLANTS-BASEL,13(5).
MLA	Feng, Wei,et al."An Experimental Investigation of the Precipitation Utilization of Plants in Arid Regions".PLANTS-BASEL 13.5(2024).