Spatial variability of surface soil moisture content in a re-vegetated desert area in Shapotou, Northern China
文献类型：期刊论文
| 作者 | Pan, Y. -X.; Wang, X. -P.; Jia, R. -L.; Chen, Y. -W.; He, M. -Z. |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 72期号:9页码:1675-1683 |
| 关键词 | coefficient of variation grid-scale influence factors soil texture topography vegetation |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2008.03.010 |
| 通讯作者 | Wang, X. -P.(xpwang@lzb.ac.cn) |
| 英文摘要 | Surface soil moisture content exhibits a high degree of spatial and temporal variability. The purpose of this study was (a) to characterize the spatial and temporal variations in soil moisture contents in the depths of 0-15 and 0-30 cm soil layer in an artificially re-vegetated desert area in Shapotou, China; and (b) to make inferences regarding the environmental factors that influence such variability. Over a period of 7-month experiment, soil moisture contents were measured with Time Domain Reflectometry (TDR) at an interval of every half a month at a grid space with 10 m intervals horizontally covering 4500 m(2) area, which include a topography from dune crest to dune hollow, and again to dune crest. Results indicated that the distribution of soil moisture at the grid scale was in a pattern of normal distribution with a significant temporal-spatial variability; the variability of soil moisture decreased with decreased mean soil moisture content, and it was higher in the depth of 0-15 cm than that in the depth of 0-30 cm. Relative elevation was a main influence factor of soil moisture variability especially after rainfall events and its influence was more tremendous in the depth of 0-30 cm than that in the depth of 0-15 cm. There was a consistent time-series pattern between the vegetation cover and the soil moisture content and the relative elevation, which increased under the rainstorm events. Soil texture (particle size distribution) had an opposite time-series pattern with relative elevation and vegetation cover, and the correlation was higher in the depth of 0-15 cm than that in the depth of 0-30 cm. We may conclude that local topography and vegetation cover were the main influencing factors of soil moisture variations immediately after the rainstorm events, whereas the soil texture was an important influencing factor as the soil dried up in the study area. (C) 2008 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | WATER CONTENT ; TENGGER DESERT ; TRANSECT |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000257858700015 |
| 出版者 | ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556042 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, X. -P. |
| 作者单位 | Chinese Acad Sci, Shapotou Desert Expt Res Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Y. -X.,Wang, X. -P.,Jia, R. -L.,et al. Spatial variability of surface soil moisture content in a re-vegetated desert area in Shapotou, Northern China[J]. JOURNAL OF ARID ENVIRONMENTS,2008,72(9):1675-1683. |
| APA | Pan, Y. -X.,Wang, X. -P.,Jia, R. -L.,Chen, Y. -W.,&He, M. -Z..(2008).Spatial variability of surface soil moisture content in a re-vegetated desert area in Shapotou, Northern China.JOURNAL OF ARID ENVIRONMENTS,72(9),1675-1683. |
| MLA | Pan, Y. -X.,et al."Spatial variability of surface soil moisture content in a re-vegetated desert area in Shapotou, Northern China".JOURNAL OF ARID ENVIRONMENTS 72.9(2008):1675-1683. |
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来源：寒区旱区环境与工程研究所
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