干旱区生态环境知识资源中心(Arid): Variations in water content of soil in apricot orchards in the western hilly regions of the Chinese Loess Plateau

Arid

DOI	10.1002/vzj2.20034
	Variations in water content of soil in apricot orchards in the western hilly regions of the Chinese Loess Plateau
	Shi, Dongping; Tan, Hongbing; Rao, Wenbo; Liu, Zihao; Elenga, Hartman Issombo
通讯作者	Tan, HB (corresponding author), Hohai Univ, Sch Earth Sci & Engn, Nanjing 210098, Peoples R China.
来源期刊	VADOSE ZONE JOURNAL
EISSN	1539-1663
出版年	2020
卷号	19 期号:1
英文摘要	Large changes in land use and land cover types have been occurring in the hill and gully regions of the Loess Plateau since the end of the 1990s. This study revealed dynamic variations of soil water in different layers of representative land use and land cover types under different annual precipitation regimes and assessed the effects on soil water circulation in large areas of apricot [Armeniaca sibirica (L.) Lam.] trees, which have extensive and deep root systems. The results show distinct soil water deficit with a water content of generally <17% (60% of field capacity) in the deep layers of the soil profile of the apricot orchards. Several years after afforestation, perennial soil water deficit layers have subsequently developed around the root zone or even extended to deeper soil layers in the apricot orchards. In the soil profiles, increasing Cl contents are not related to increasing delta H-2 and delta O-18 values. This finding suggests that the extreme deficit of soil water and dry layer developments is mainly caused by intense transpiration, rather than by evaporation alone. The occurrence and development of soil water deficit layers in the deep soil profiles were the dominant factors that caused tree growth degradation and gradual death, due to lack of adequate stored soil water in the deep layers for use during a long arid time. Thus, the large-scale establishment of arbor trees will likely lead to long-term soil desiccation in the arid or semiarid regions on the Loess Plateau.
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:000618773300034
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369185
作者单位	[Shi, Dongping; Tan, Hongbing; Rao, Wenbo; Liu, Zihao; Elenga, Hartman Issombo] Hohai Univ, Sch Earth Sci & Engn, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Shi, Dongping,Tan, Hongbing,Rao, Wenbo,et al. Variations in water content of soil in apricot orchards in the western hilly regions of the Chinese Loess Plateau[J]. 河海大学,2020,19(1).
APA	Shi, Dongping,Tan, Hongbing,Rao, Wenbo,Liu, Zihao,&Elenga, Hartman Issombo.(2020).Variations in water content of soil in apricot orchards in the western hilly regions of the Chinese Loess Plateau.VADOSE ZONE JOURNAL,19(1).
MLA	Shi, Dongping,et al."Variations in water content of soil in apricot orchards in the western hilly regions of the Chinese Loess Plateau".VADOSE ZONE JOURNAL 19.1(2020).