IGSNRR OpenIR
Intensive land restoration profoundly alters the spatial and seasonal patterns of deep soil water storage at watershed scales
Zhao, Yali1,2,4,5; Wang, Yunqiang1,2,3; Sun, Hui1; Lin, Henry6; Jin, Zhao1,2; He, Meina1; Yu, Yunlong1,4; Zhou, Weijian1,2,3; An, Zhisheng1,2,3
2019-08-01
Source PublicationAGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
Volume280Pages:129-141
Corresponding AuthorWang, Yunqiang(wangyq@ieecas.cn)
AbstractSoil-water storage (SWS) highly correlates with changes to land use and land restoration, and is an important variable for managing water resources and environmental restoration in water-limited terrestrial ecosystems. The Gully Land Consolidation project (GLC) was implemented in 2011 on the Chinese Loess Plateau and it may influence the spatial distribution and temporal variability of SWS at the watershed scale. However, there have been limited studies assessing the magnitude and pattern of such changes. We measured SWS to a depth of 5 m nine times over four seasons across two watersheds- one treated by the GLC project (GT-T, n = 89) and the other untreated (GT-U, n = 72). We then used correlation analysis, principle component analysis, multiple linear regression analysis, generalized linear model, and regression kriging to evaluate the seasonal variability, as well as spatial patterns, of SWS. Mean SWS in the spring, summer, autumn, and winter ranged from 830 to 934 mm in the GT-T watershed and from 681 to 771 mm in the GT-U watershed. Land use was the most important factor for predicting SWS in the two watersheds. After land management as a result of the GLC project, SWS exhibited different spatial patterns in the GT-T watershed compared with the GT-U watershed. Dynamics of SWS between adjacent seasons in the GT-U watershed displayed more variability than that in the GT-T watershed. In both watersheds, soil water volume (SWV, i.e., SWS per unit area x watershed area) declined from spring to summer (-3.9% in the GT-T and -13.4% in the GT-U), and increased from summer to autumn (11.7% in the GT-T and 20.7% in the GT-U). After the whole year, SWV displayed different degrees of increase in the two watersheds (10.6% in the GT-T, 2.7% in the GT-U) due to the effect of land restoration. The ratios of SWV in the gully land filled in the GT-T watershed to the SWV of the whole GT-T watershed for the four seasons ranged from 21.4-23.3%, with a mean value of 22%. Our results provide new insights regarding how human engineering of landscapes (as exemplified by GLC project) affect the spatial distribution of SWS and the dynamics of SWV storing capacity at the watershed scale. Understanding the dynamics of SWS/SWV between seasons is essential to evaluate, model and manage the soil water resources in human-affected watersheds.
KeywordSoil water, Land management Seasonal dynamic Regression kriging The Gully Land Consolidation project The Loess Plateau
DOI10.1016/j.agee.2019.04.028
WOS KeywordLOESS PLATEAU ; SPATIOTEMPORAL VARIABILITY ; MOISTURE ; VEGETATION ; CATCHMENT ; RUNOFF ; REVEGETATION ; FARMLAND ; CAPACITY ; DYNAMICS
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571130083] ; National Natural Science Foundation of China[41530854] ; National Natural Science Foundation of China[41722106] ; National Natural Science Foundation of China[41790444] ; Shannxi Science and Technology Coordinator Innovative Engineering Project[2015KTZDNY01-04] ; Ten Thousand Talent Program for Young top-notch talent
Funding OrganizationNational Natural Science Foundation of China ; Shannxi Science and Technology Coordinator Innovative Engineering Project ; Ten Thousand Talent Program for Young top-notch talent
WOS Research AreaAgriculture ; Environmental Sciences & Ecology
WOS SubjectAgriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS IDWOS:000482173700014
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69714
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Yunqiang
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China
3.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
5.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
6.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
Recommended Citation
GB/T 7714
Zhao, Yali,Wang, Yunqiang,Sun, Hui,et al. Intensive land restoration profoundly alters the spatial and seasonal patterns of deep soil water storage at watershed scales[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2019,280:129-141.
APA Zhao, Yali.,Wang, Yunqiang.,Sun, Hui.,Lin, Henry.,Jin, Zhao.,...&An, Zhisheng.(2019).Intensive land restoration profoundly alters the spatial and seasonal patterns of deep soil water storage at watershed scales.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,280,129-141.
MLA Zhao, Yali,et al."Intensive land restoration profoundly alters the spatial and seasonal patterns of deep soil water storage at watershed scales".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 280(2019):129-141.
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