干旱区生态环境知识资源中心(Arid): Water Storage and Use by Platycladus orientalis under Different Rainfall Conditions in the Rocky Mountainous Area of Northern China

Arid

DOI	10.3390/f13111761
	Water Storage and Use by Platycladus orientalis under Different Rainfall Conditions in the Rocky Mountainous Area of Northern China
	Zhang, Xiao; Yu, Xinxiao; Ding, Bingbing; Liu, Zihe; Jia, Guodong
通讯作者	Jia, GD
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:11
英文摘要	Tree water transport and utilization are essential for maintaining ecosystem stability in seasonally arid areas. However, it is not clear how Platycladus orientalis absorbs, consumes via transpiration, and stores water under varying precipitation conditions. Therefore, this study used stem sap flow thermal dissipation probes and hydrogen and oxygen isotope tracing technology to observe different water control treatments in a P. orientalis plantation. We found that the average daily sap flow of P. orientalis under different water control treatments had the following order: no rainfall (NR) < half rainfall (HR) < double rainfall (DR) < natural rainfall (AR). The percentage of nocturnal sap flow was as follows: AR (13.34%) < NR (19.62%) < DR (20.84%) < HR (30.90%). The percentage of water storage was NR (4.13%) < AR (4.49%) < DR (6.75%) < HR (9.29%). The sap flow of P. orientalis was primarily affected by vapor pressure deficit and solar radiation, with a degree of influence of DR < NR < HR < AR. The response of P. orientalis sap flow to environmental factors differed due to the soil changes in relative extractable water (REW) before and after precipitation. During high REW conditions, environmental factors have a higher impact on sap flow. The source of water absorbed changed regularly with the precipitation gradient. When soil water content increased, the water source used by P. orientalis gradually changed to shallow soil. Compared to before and after precipitation, there was no significant change except for NR. P. orientalis could regularly adjust the activities of transpiration water consumption, water storage, and absorption. This adaptive property is conducive to survival through extreme drought stress.
英文关键词	sap flow water storage water use environmental factor precipitation Platycladus orientalis
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:000881192900001
WOS关键词	XYLEM HYDRAULIC SAFETY ; SAP FLOW ; SOIL-WATER ; METEOROLOGICAL FACTORS ; WOODY-PLANTS ; TRANSPIRATION ; PRECIPITATION ; RESPONSES ; LEAF ; PHOTOSYNTHESIS
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392639
推荐引用方式 GB/T 7714	Zhang, Xiao,Yu, Xinxiao,Ding, Bingbing,et al. Water Storage and Use by Platycladus orientalis under Different Rainfall Conditions in the Rocky Mountainous Area of Northern China[J],2022,13(11).
APA	Zhang, Xiao,Yu, Xinxiao,Ding, Bingbing,Liu, Zihe,&Jia, Guodong.(2022).Water Storage and Use by Platycladus orientalis under Different Rainfall Conditions in the Rocky Mountainous Area of Northern China.FORESTS,13(11).
MLA	Zhang, Xiao,et al."Water Storage and Use by Platycladus orientalis under Different Rainfall Conditions in the Rocky Mountainous Area of Northern China".FORESTS 13.11(2022).