干旱区生态环境知识资源中心(Arid): Variation in water source of sand-binding vegetation across a chronosequence of artificial desert revegetation in Northwest China

Arid

	Variation in water source of sand-binding vegetation across a chronosequence of artificial desert revegetation in Northwest China
	Pan Yanxia; Wang Xinping; Hu Rui; Zhang Yafeng; Zhao Yang
来源期刊	寒旱区科学
ISSN	1674-3822
出版年	2020
卷号	12 期号:5
英文摘要	Water is the most important limiting factor in arid areas,and thus water resource management is critical for the health of dryland ecosystems.However,global climate change and anthropogenic activity make water resource management more difficult,and this situation may be particularly crucial for dryland restoration,because of variation in water uptake patterns associated with artificial revegetation of different ages and vegetation type.However,there is lacking longterm restorations that are suitable for studying this issue.In Shapotou area,Northwest China,artificial revegetation areas were planted several times beginning in 1956,and now form a chronosequence of sand-binding landscapes that are ideal for studying variability in water uptake source by plants over succession.The stable isotopes delta~(18)O and delta~2H were employed to investigate the water uptake patterns of the typical revegetation shrubs Artemisia ordosica and Caragana korshinskii,which were planted in different years.We compared the stable isotope ratios of shrub stem water to groundwater,precipitation,and soil water pools at five layers(5-10,10-40,40-80,80-150,and 150-300 cm).The results indicate that Artemisia ordosica derived the majority of their water from the 20-150 cm soil layer,whereas Caragana korshinskii obtained water from the 40-150 cm soil layer.The main water sources of Artemisia ordosica and C.korshinskii plants changed over time,from deeper about 150 cm depth to shallow 20 cm soil layer.This study can provide insights into water uptake patterns of major desert vegetation and thus water management of artificial ecosystems,at least in Northwest China.
英文关键词	artificial vegetation stable isotopes soil water xylem water water source
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Environmental Sciences & Ecology
CSCD记录号	CSCD:6832251
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353603
推荐引用方式 GB/T 7714	Pan Yanxia,Wang Xinping,Hu Rui,et al. Variation in water source of sand-binding vegetation across a chronosequence of artificial desert revegetation in Northwest China[J],2020,12(5).
APA	Pan Yanxia,Wang Xinping,Hu Rui,Zhang Yafeng,&Zhao Yang.(2020).Variation in water source of sand-binding vegetation across a chronosequence of artificial desert revegetation in Northwest China.寒旱区科学,12(5).
MLA	Pan Yanxia,et al."Variation in water source of sand-binding vegetation across a chronosequence of artificial desert revegetation in Northwest China".寒旱区科学 12.5(2020).