Variations in capacity and storage of plant-available water in deep profiles along a revegetation and precipitation gradient

doi:10.1016/j.jhydrol.2019.124401

	Variations in capacity and storage of plant-available water in deep profiles along a revegetation and precipitation gradient
	Zhang, Chencheng 1,2,3; Wang, Yunqiang 2,3,4,5; Jia, Xiaoxu 6; Shao, Ming'an 2,6; An, Zhisheng 2,3,5
刊名	JOURNAL OF HYDROLOGY
	2020-02-01
卷号	581 页码:11
关键词	Plant-available water Regional transect Root depth Soil drying Loess Plateau
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2019.124401
通讯作者	Wang, Yunqiang(wangyq@ieecas.cn)
英文摘要	Knowledge of regional characteristics and variability in available soil water is important for water resource management and vegetation restoration in arid and semi-arid regions. However, few studies have evaluated the available water-holding capacity (AWHC) and plant-available water storage (PAWS) for plant growth or determined the saturation of available soil water (SASW) in deep profiles (> 2m). This study investigated characteristics of AWHC and PAWS to a depth of 5 m along a revegetation and precipitation gradient on the Chinese Loess Plateau (CLP). The results showed that AWHC(5) (m) exhibited a decreasing trend along the transect, with a mean value of 762.9 mm. PAWS(5) (m) first decreased, then increased following changes in vegetation types with a mean value of 257.3 mm. The PAWS(5) (m) significantly differed under different soil layers and showed high variation (coefficient of variation = 88.0%) in its profile. AWHC(5) (m) was significantly correlated with all environmental factors except slope aspect and slope gradient. A comparative analysis showed that PAWS(5) (m) had a small portion of AWHC(5) (m), both of which varied among different vegetation species. Variations in PAWS(5) (m) and AWHC(5) (m) were higher in the 450-550 mm precipitation zone and silt loam soil. Planted forests with deep root systems introduced in the 450-550 mm precipitation zone had lower SASW(5) (m) values than the areas with shallow root vegetation. A complete understanding of the spatial variations of PAWS, AWHC, and SASW along the revegetation and precipitation gradient will be helpful in assessing regional water resources and optimizing vegetation species on the CLP and possibly in other water-limited regions around the world.
资助项目	National Natural Science Foundation of China[41530854] ; National Natural Science Foundation of China[41807020] ; National Natural Science Foundation of China[41722106] ; National Natural Science Foundation of China[41971045] ; Ten Thousand Talent Program for Young top-notch talent ; Open Foundation of State Key Laboratory of Loess and Quaternary Geology[QDJF1803]
WOS关键词	SEMIARID LOESS PLATEAU ; DRIED SOIL LAYERS ; GROUNDWATER RECHARGE ; SPATIAL VARIABILITY ; ROOT DISTRIBUTION ; STABLE-ISOTOPES ; APPLE-TREES ; LAND-USE ; MOISTURE ; REGION
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000514758300025
资助机构	National Natural Science Foundation of China ; Ten Thousand Talent Program for Young top-notch talent ; Open Foundation of State Key Laboratory of Loess and Quaternary Geology
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12681]
专题	地球环境研究所_生态环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Wang, Yunqiang
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 71200, Shaanxi, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China 3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 4.Xi An Jiao Tong Univ, Dept Earth & Environm Sci, Xian 710049, Peoples R China 5.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China 6.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chencheng,Wang, Yunqiang,Jia, Xiaoxu,et al. Variations in capacity and storage of plant-available water in deep profiles along a revegetation and precipitation gradient[J]. JOURNAL OF HYDROLOGY,2020,581:11.
APA	Zhang, Chencheng,Wang, Yunqiang,Jia, Xiaoxu,Shao, Ming'an,&An, Zhisheng.(2020).Variations in capacity and storage of plant-available water in deep profiles along a revegetation and precipitation gradient.JOURNAL OF HYDROLOGY,581,11.
MLA	Zhang, Chencheng,et al."Variations in capacity and storage of plant-available water in deep profiles along a revegetation and precipitation gradient".JOURNAL OF HYDROLOGY 581(2020):11.