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Sustainability of Abandoned Slopes in the Hill and Gully Loess Plateau Region Considering Deep Soil Water
Yu, Weijie1; Jiao, Juying1,2
2018-07-01
Source PublicationSUSTAINABILITY
ISSN2071-1050
Volume10Issue:7Pages:14
Corresponding AuthorJiao, Juying(jyjiao@ms.iswc.ac.cn)
AbstractSoil desiccation of the deep soil layer is considered one of the main limiting factors to achieving sustainable development of ecosystems in the hill and gully Loess Plateau region. In this study, slope croplands were selected as the control, and deep soil water was studied on abandoned slopes, including natural abandoned slopes, Robinia pseudoacacia plantations, and Caragana korshinskii plantations. Then, we explored deep soil water characteristics of different vegetation types and slope aspects and the variation tendencies of deep soil water at different recovery stages. The results showed that there were no significant differences in deep soil water content between sunny and shady slopes, and thus, slope aspect was not the key impact factor affecting deep soil water. Deep soil water content on R. pseudoacacia plantations and C. korshinskii plantations was lower than that on natural abandoned slopes; there were no significant differences in soil water content between the natural abandoned slopes and slope croplands. Soil desiccation did not exist on natural abandoned slopes; thus, natural vegetation restoration is an appropriate way to achieve a sustainable ecosystem with respect to deep soil water. In contrast, soil desiccation intensified until it was difficult for vegetation to obtain available water in the deep soil layer on the plantations; soil desiccation began to appear at the 11-20-year stage, and it became increasingly severe until the deep soil water was close to the wilting coefficient at the >= 30-year stage on R. pseudoacacia plantations. Deep soil water was rapidly consumed, and soil desiccation began to appear at the 1-10-year stage and then was close to the wilting coefficient in the later stages on C. korshinskii plantations. According to the results, the plantations needed to be managed in a timely manner to prevent or reduce soil desiccation.
KeywordCaragana korshinskii plantation deep soil water dried soil layer natural abandoned slope Robinia pseudoacacia plantation hill and gully Loess Plateau
DOI10.3390/su10072287
WOS KeywordVEGETATION RESTORATION ; DIFFERENT AGES ; CHINA ; MOISTURE ; STORAGE ; NITROGEN ; CARBON ; VARIABILITY ; DYNAMICS ; DROUGHT
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC0501604] ; National Science Foundation of China[41771322] ; National Science Foundation of China[41371280]
Funding OrganizationNational Key Research and Development Program of China ; National Science Foundation of China
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000440947600178
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54369
Collection中国科学院地理科学与资源研究所
Corresponding AuthorJiao, Juying
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dry Land Farming Loess, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Yu, Weijie,Jiao, Juying. Sustainability of Abandoned Slopes in the Hill and Gully Loess Plateau Region Considering Deep Soil Water[J]. SUSTAINABILITY,2018,10(7):14.
APA Yu, Weijie,&Jiao, Juying.(2018).Sustainability of Abandoned Slopes in the Hill and Gully Loess Plateau Region Considering Deep Soil Water.SUSTAINABILITY,10(7),14.
MLA Yu, Weijie,et al."Sustainability of Abandoned Slopes in the Hill and Gully Loess Plateau Region Considering Deep Soil Water".SUSTAINABILITY 10.7(2018):14.
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