Effect of land use and topography on spatial variability of soil moisture in a gully catchment of the Loess Plateau, China
文献类型：期刊论文
| 作者 | Huang, Yilong ; Chen, Liding ; Fu, Bojie ; Huang, Zhilin ; Gong, Jie ; Lu, Xixi |
| 刊名 | ECOHYDROLOGY
 |
| 出版日期 | 2012 |
| 卷号 | 5期号:6页码:826－833 |
| 关键词 | soil moisture spatial variability land management Loess Plateau |
| ISSN号 | 1936-0584 |
| 中文摘要 | The Loess Plateau ecosystem in China is degraded owing to poor natural conditions and intense human activity. The intensity of soil erosion and deficit of soil moisture are the key factors that influence the ecological restoration and agricultural land productivity in this region. Analysis of the soil moisture dynamic and the relative importance of land use and topography for the spatial variability of soil moisture is the basis for guiding ecosystem restoration and agricultural development. We analysed the spatial variability of soil moisture for five land-use types within 44 sample plots (176 sample points) at the five depths (020, 2040, 4060, 6080 and 80100?cm) in the Anjiagou catchment of the Loess Plateau from April to September 2002. The depth-averaged soil moisture of cropland was the highest among the five land-use types, followed by fallowland, woodland, shrubland and wasteland during high soilwater contents period (from 24 April to 23 June). The time-averaged soil moisture of all the five land-use types first decreased with depth during the wet moisture status and then increased with depth during the dry conditions (from 12 July to 9 August). The time-averaged soil moisture of fallowland, cropland and shrubland was decreased with depth, but both wasteland and woodland was decreased and then increased with depth in the medium moisture status (from 23 August to 18 September). Land use was the key factor that influenced the spatial variability of the time-averaged moisture of the four soil layers (2040, 4060, 6080 and 80100?cm) during the wet and medium soilwater content condition. Land use had a weak influence on the spatial variability of the time-averaged moisture of all the five soil layers in the dry moisture status. Slope aspect had a significant influence on the time-averaged soil moisture of some soil layers in the wet and medium moisture statuses for wasteland, shrubland, woodland and fallowland. The other four topographic factors (slope profile curvature, slope position, relative elevation and slope gradient) all had weak influence on the time-averaged soil moisture of all the five land use types in the three water statuses. Copyright (c) 2011 John Wiley & Sons, Ltd. |
| WOS记录号 | WOS:000312296900014 |
| 公开日期 | 2014-11-05 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/7872]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Huang, Yilong,Chen, Liding,Fu, Bojie,et al. Effect of land use and topography on spatial variability of soil moisture in a gully catchment of the Loess Plateau, China[J]. ECOHYDROLOGY,2012,5(6):826－833. |
| APA | Huang, Yilong,Chen, Liding,Fu, Bojie,Huang, Zhilin,Gong, Jie,&Lu, Xixi.(2012).Effect of land use and topography on spatial variability of soil moisture in a gully catchment of the Loess Plateau, China.ECOHYDROLOGY,5(6),826－833. |
| MLA | Huang, Yilong,et al."Effect of land use and topography on spatial variability of soil moisture in a gully catchment of the Loess Plateau, China".ECOHYDROLOGY 5.6(2012):826－833. |
入库方式： OAI收割
来源：生态环境研究中心
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