Long-term temporal variations of soil water content under different vegetation types in the Loess Plateau, China
Zhao, CL; Jia, XX; Zhu, YJ; Shao, MA
2017
Source PublicationCATENA
ISSN0341-8162
Volume158Pages:55-62
AbstractThe temporal characteristics of soil moisture are critical for the stability and sustainability of rebuilt ecosystems. In China's Loess Plateau (CLP), large areas of unsuitable croplands were restored to forest or grassland in order to control soil and water loss. Thus, knowledge of the temporal pattern and its controlling factors of soil moisture in revegetated areas over long-term is indispensable. In this study, four plots with different land uses (shrubland, grassland, fallow land and cropland) were set up on a loess slope in northern CLP. The profile soil moisture in the 0-4 m soil layer was measured from 2004 to 2015. Semivariogram models were established to analyze the profile temporal characteristics of soil water content (SWC) over 12 years of revegetation. The results suggested that: temporal stability of SWC under cropland was better than that under the three types of revegetated lands. Among the three types of revegetated lands, fallow land had stronger stability and higher value of SWC and was thus recommended as the best revegetation type. Generally, variation of SWC decreased with the increase of soil depth under shrubland, fallow land and cropland. However, under grassland, an inverse trend of SWS variation was observed and huge water absorption by deep grass roots was responsible for this trend. The temporal variation in SWC was under the joint influence of land use, soil depth and slope position, and land use was regarded as the dominant one. The study provided wider insight into scientific and reasonable vegetation restoration strategies in CLP region.
SubtypeJournal
KeywordLong-term time series Soil moisture content Revegetation China's Loess Plateau Temporal characteristics
Subject AreaGeology ; Agriculture ; Water Resources
WOS Subject ExtendedGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS KeywordSPATIAL VARIABILITY ; MOISTURE ; STABILITY ; LAND ; STORAGE ; REVEGETATION ; HILLSLOPE ; PATTERNS ; SHRUB
Indexed BySCI
Language英语
WOS IDWOS:000412252200006
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/43987
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Zhao, CL,Jia, XX,Zhu, YJ,et al. Long-term temporal variations of soil water content under different vegetation types in the Loess Plateau, China[J]. CATENA,2017,158:55-62.
APA Zhao, CL,Jia, XX,Zhu, YJ,&Shao, MA.(2017).Long-term temporal variations of soil water content under different vegetation types in the Loess Plateau, China.CATENA,158,55-62.
MLA Zhao, CL,et al."Long-term temporal variations of soil water content under different vegetation types in the Loess Plateau, China".CATENA 158(2017):55-62.
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