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Responses of soil moisture to vegetation restoration type and slope length on the loess hillslope
MEI Xue-mei; MA Lan; ZHU Qing-ke; WANG Shu; ZHANG Dong; WANG Yu
Corresponding AuthorMA Lan
Source PublicationJournal of Mountain Science
AbstractSoil moisture, a critical variable in the hydrologic cycle, is highly influenced by vegetation restoration type. However, the relationship between spatial variation of soil moisture, vegetation restoration typeandslope lengthiscontroversial. Therefore, soil moisture across soil layers (0-400 cm depth) was measuredbefore and after the rainy seasonin severe drought (2015) and normal hydrological year (2016) inthree vegetation restoration areas (artificial forestland, natural forestland and grassland), onthe hillslopes of the Caijiachuan Catchment inthe Loess area, China. The results showed that artificial forestlandhad the lowest soil moisture and most severe water deficit in 100-200 cm soil layers. Water depletion washigher in artificialand natural forestlandsthan in natural grassland. Moreover, soil moisture in the shallow soil layers (0-100 cm) underthe three vegetation restoration typesdid not significantly vary with slope length, but a significant increase with slope lengthwas observed in deep soil layers (below 100 cm). In 2015, a severe drought hydrological year, higher water depletion was observed at lower slope positions under three vegetation restoration types due to higher transpiration and evapotranspiration and unlikely recharge from upslope runoff. However, in 2016, a normal hydrological year, there was lower water depletion, even infiltration recharge at lower slope positions, indicating receiving a large amount of water from upslope. Vegetation restoration type, precipitation, slope length and soil depth during a rainy season, in descending order of influence, had significant effects on soil moisture. Generally, natural grassland is more beneficial for vegetation restoration than natural and artificial forestlands,and the results can provide useful information for understanding hydrological processes and improving vegetationrestoration practices on the Loess Plateau
KeywordSpatial variation Soil moisture Infiltration depth Hillslope Vegetation restoration Loess Plateau
Indexed BySCIE
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1 Key Laboratory of State Forestry Administration on Soil and Water Conservation, School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China; 2 Haihe River Water Conservancy Commission, Ministry of Water Resources, Tianjin 300170, China
Recommended Citation
GB/T 7714
MEI Xue-mei,MA Lan,ZHU Qing-ke,et al. Responses of soil moisture to vegetation restoration type and slope length on the loess hillslope[J]. Journal of Mountain Science,2018,15(3):548-562.
APA MEI Xue-mei,MA Lan,ZHU Qing-ke,WANG Shu,ZHANG Dong,&WANG Yu.(2018).Responses of soil moisture to vegetation restoration type and slope length on the loess hillslope.Journal of Mountain Science,15(3),548-562.
MLA MEI Xue-mei,et al."Responses of soil moisture to vegetation restoration type and slope length on the loess hillslope".Journal of Mountain Science 15.3(2018):548-562.
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