干旱区生态环境知识资源中心(Arid): A Comparison of Water Uptake by Transpiration from Different Soil Depths among Three Land Cover Types in the Arid Northwest of China

Arid

DOI	10.3390/f14112208
	A Comparison of Water Uptake by Transpiration from Different Soil Depths among Three Land Cover Types in the Arid Northwest of China
	Qin, Yushi; Zhang, Tianwen; Zhang, Rongfei; Zhao, Ziyan; Qiao, Gaixia; Chen, Wei; He, Lijun
通讯作者	Zhang, RF
来源期刊	FORESTS
EISSN	1999-4907
出版年	2023
卷号	14 期号:11
英文摘要	In recent decades, the frequency, intensity, and extent of extreme drought events have posed serious threats to ecosystems in vulnerable regions. With low annual precipitation, the arid area in northwest China is a typical ecologically fragile area, and extreme drought events will aggravate desertification in this area. In order to control desertification, various experimental plantations have been established in Northwest China. However, there is no consensus on which plantations are more suitable to become widespread. To explore this, we conducted a comparative study on different plantations from the perspective of long-term deep (100 cm depth) soil moisture balance. In our study, six typical ecosystems were selected for comparison of the variation of soil moisture and control factors. The results showed three main findings. First, the soil moisture of all six ecosystems showed a similar hierarchy of increasing moisture with the increasing depth of the soil layer. However, the deep layer soil moisture (mean = 0.33 +/- 0.22 cm3 center dot cm-3) of the artificial poplar (Populus alba) forest exhibited a downward trend over time after the fifth year, but did not at the shallow layer for this ecosystem. Second, the trends of the maximum canopy coverage between the different ecosystems from 2010 to 2019 showed significant differences from one another, with the maximum value of the leaf area index for the poplar forest being the highest (Maximum = 7.13). Third, a negative correlation (R2 = 0.52) was found between deep soil moisture and transpiration for the poplar forest, and a positive correlation (R2 >= 0.23) between these two metrics was found for the other five ecosystems. The results revealed that transpiration processes had a different consumption of deep soil moisture due to the differences in the root and canopy density of several plantations. Among these ecosystems, the transpiration of the artificial poplar forest is noticeably large, resulting in a unilateral decline in soil moisture.
英文关键词	artificial forest arid area soil moisture transpiration canopy density
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:001118368500001
WOS关键词	ECOLOGICALLY FRAGILE ZONE ; HUI AUTONOMOUS REGION ; ROOT DISTRIBUTION ; CLIMATE-CHANGE ; VEGETATION COVER ; LOESS PLATEAU ; EVAPOTRANSPIRATION ; NINGXIA ; RIVER ; TREE
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/2XILL650/396449
推荐引用方式 GB/T 7714	Qin, Yushi,Zhang, Tianwen,Zhang, Rongfei,et al. A Comparison of Water Uptake by Transpiration from Different Soil Depths among Three Land Cover Types in the Arid Northwest of China[J],2023,14(11).
APA	Qin, Yushi.,Zhang, Tianwen.,Zhang, Rongfei.,Zhao, Ziyan.,Qiao, Gaixia.,...&He, Lijun.(2023).A Comparison of Water Uptake by Transpiration from Different Soil Depths among Three Land Cover Types in the Arid Northwest of China.FORESTS,14(11).
MLA	Qin, Yushi,et al."A Comparison of Water Uptake by Transpiration from Different Soil Depths among Three Land Cover Types in the Arid Northwest of China".FORESTS 14.11(2023).