Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jhydrol.2012.12.002 |
Spatio-temporal variability of soil moisture and its effect on vegetation in a desertified aeolian riparian ecotone on the Tibetan Plateau, China | |
Li, Haidong1,4; Shen, Weishou1; Zou, Changxin1; Jiang, Jiang2; Fu, Lina3; She, Guanghui4 | |
通讯作者 | Li, Haidong |
来源期刊 | JOURNAL OF HYDROLOGY
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ISSN | 0022-1694 |
出版年 | 2013 |
卷号 | 479页码:215-225 |
英文摘要 | Soil moisture content is one of the limiting factors for natural vegetation succession in alpine river valleys on the Tibetan Plateau. However, its spatio-temporal variability and effect on artificial vegetation restoration has rarely been reported. In this paper, we conducted a case study to examine the spatio-temporal variability and vertical characteristics of soil moisture by setting up a 100 x 120 m experimental plot on aeolian sandy land in a riparian ecotone and analyzing the result data using a geo-statistical approach. The soil moisture contents at different depths all showed strong temporal variability, with the mean soil moisture ranging from 4% to 6% in spring, from 6% to 14% in summer and from 9% to 12% in autumn. The Gaussian semi-variogram model was the best fitted theoretical model for the spatial structure of soil moisture contents in different seasons, and soil moisture at the field scale showed strong spatial dependence. The spatial patterns of soil moisture all demonstrated strong similarity between depths with the strongest between 0-20 cm and 20-40 cm depths in autumn. The soil moisture content over the upper 60 cm was the key factor that restricted the seed germination and seedling growth, and it affected vegetation coverage and density. The precipitation, variations of river water level, elevation as well as landform types were the main factors determining the variations of soil moisture content in different seasons. The results have important implications for the ongoing vegetation restoration in the study area. (C) 2012 Elsevier B.V. All rights reserved. |
英文关键词 | Soil moisture variability Aeolian landforms Vegetation restoration Arid landscape Yarlung Zangbo River |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000315008200019 |
WOS关键词 | SPATIAL VARIABILITY ; DYNAMICS ; WATER ; ECOSYSTEMS ; TRANSECT ; RAINFALL ; FORESTS ; RIVERS ; LAND |
WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Engineering ; Geology ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178490 |
作者单位 | 1.Nanjing Inst Environm Sci, Minist Environm Protect, Nanjing 210042, Jiangsu, Peoples R China; 2.Univ Miami, Dept Biol, Coral Gables, FL 33124 USA; 3.Univ So Mississippi, Gulf Coast Res Lab, Dept Coastal Sci, Ocean Springs, MS 39564 USA; 4.Nanjing Forestry Univ, Coll Forest Resources & Environm, Nanjing 210037, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Haidong,Shen, Weishou,Zou, Changxin,et al. Spatio-temporal variability of soil moisture and its effect on vegetation in a desertified aeolian riparian ecotone on the Tibetan Plateau, China[J],2013,479:215-225. |
APA | Li, Haidong,Shen, Weishou,Zou, Changxin,Jiang, Jiang,Fu, Lina,&She, Guanghui.(2013).Spatio-temporal variability of soil moisture and its effect on vegetation in a desertified aeolian riparian ecotone on the Tibetan Plateau, China.JOURNAL OF HYDROLOGY,479,215-225. |
MLA | Li, Haidong,et al."Spatio-temporal variability of soil moisture and its effect on vegetation in a desertified aeolian riparian ecotone on the Tibetan Plateau, China".JOURNAL OF HYDROLOGY 479(2013):215-225. |
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