Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/hess-20-3309-2016 |
Variations of deep soil moisture under different vegetation types and influencing factors in a watershed of the Loess Plateau, China | |
Fang, Xuening1; Zhao, Wenwu1,2; Wang, Lixin2; Feng, Qiang1,3; Ding, Jingyi1; Liu, Yuanxin1; Zhang, Xiao1 | |
通讯作者 | Zhao, Wenwu ; Wang, Lixin |
来源期刊 | HYDROLOGY AND EARTH SYSTEM SCIENCES |
ISSN | 1027-5606 |
EISSN | 1607-7938 |
出版年 | 2016 |
卷号 | 20期号:8页码:3309-3323 |
英文摘要 | Soil moisture in deep soil layers is a relatively stable water resource for vegetation growth in the semi-arid Loess Plateau of China. Characterizing the variations in deep soil moisture and its influencing factors at a moderate watershed scale is important to ensure the sustainability of vegetation restoration efforts. In this study, we focus on analyzing the variations and factors that influence the deep soil moisture (DSM) in 80-500 cm soil layers based on a soil moisture survey of the Ansai watershed in Yan’an in Shanxi Province. Our results can be divided into four main findings. (1) At the watershed scale, higher variations in the DSM occurred at 120-140 and 480-500 cm in the vertical direction. At the comparable depths, the variation in the DSM under native vegetation was much lower than that in human-managed vegetation and introduced vegetation. (2) The DSM in native vegetation and human-managed vegetation was significantly higher than that in introduced vegetation, and different degrees of soil desiccation occurred under all the introduced vegetation types. Caragana korshinskii and black locust caused the most serious desiccation. (3) Taking the DSM conditions of native vegetation as a reference, the DSM in this watershed could be divided into three layers: (i) a rainfall transpiration layer (80-220 cm); (ii) a transition layer (220-400 cm); and (iii) a stable layer (400-500 cm). (4) The factors influencing DSM at the watershed scale varied with vegetation types. The main local controls of the DSM variations were the soil particle composition and mean annual rainfall; human agricultural management measures can alter the soil bulk density, which contributes to higher DSM in farmland and apple orchards. The plant growth conditions, planting density, and litter water holding capacity of introduced vegetation showed significant relationships with the DSM. The results of this study are of practical significance for vegetation restoration strategies, especially for the choice of vegetation types, planting zones, and proper human management measures. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000383234400001 |
WOS关键词 | TEMPORAL STABILITY ; LAND-USE ; SPATIAL HETEROGENEITY ; VARIABILITY ; PATTERNS ; LAYERS ; COVER ; SCALE ; RESTORATION ; DESICCATION |
WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Geology ; Water Resources |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/193493 |
作者单位 | 1.Beijing Normal Univ, Coll Resource & Technol, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 2.IUPUI, Dept Earth Sci, Indianapolis, IN 46202 USA; 3.Shanxi Agr Univ, Coll Forestry, Taigu 030801, Shanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Fang, Xuening,Zhao, Wenwu,Wang, Lixin,et al. Variations of deep soil moisture under different vegetation types and influencing factors in a watershed of the Loess Plateau, China[J]. 北京师范大学,2016,20(8):3309-3323. |
APA | Fang, Xuening.,Zhao, Wenwu.,Wang, Lixin.,Feng, Qiang.,Ding, Jingyi.,...&Zhang, Xiao.(2016).Variations of deep soil moisture under different vegetation types and influencing factors in a watershed of the Loess Plateau, China.HYDROLOGY AND EARTH SYSTEM SCIENCES,20(8),3309-3323. |
MLA | Fang, Xuening,et al."Variations of deep soil moisture under different vegetation types and influencing factors in a watershed of the Loess Plateau, China".HYDROLOGY AND EARTH SYSTEM SCIENCES 20.8(2016):3309-3323. |
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