SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU
文献类型：期刊论文
| 作者 | Wang, Cong; Wang, Shuai; Fu, Bojie; Yang, Lei; Li, Zongshan |
| 刊名 | LAND DEGRADATION & DEVELOPMENT
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 28期号:3页码:926-935 |
| 关键词 | Soil Moisture Land Use Type Precipitation Gradient Restoration Strategy North-south Transect |
| 英文摘要 | Knowledge of soil moisture spatial variation with land use along the precipitation gradient is necessary to improve land management and guide restoration practice in the water-limited Chinese Loess Plateau. This study selected 45 sampling points at 11 sites across the north-south transect of the Loess Plateau based on the precipitation gradient and land use. Results showed that the vertical profiles of soil moisture revealed large variations with the precipitation gradient changing, especially in the surface layer (0-100 cm). Significant linear correlation existed between the average soil moisture of the profile and the mean annual precipitation (MAP) for each land use type (p<0.05). Hereinto, the soil moisture under the grassland was affected more greatly by precipitation. The soil moisture under each land use commonly revealed the trend as farmland > grassland > shrubland > woodland, while it might be higher under the woodland than the shrubland in the surface layer in regions with MAP <500 mm. The soil moisture of woodland or shrubland at the selected points was below or approximate to the permanent wilting point in regions with MAP <520 mm. Covariance analysis confirmed the effects of land use and MAP on the soil moisture in depth of 100-300 cm, and it showed land use did not pose significant effects in the surface layer. In addition, our study indicated that it is necessary to reconsider and re-evaluate the current vegetation restoration strategy in the perspective of vegetation sustainability and soil water availability, in which woodland and shrubland were selected on a large scale in the arid and semi-arid regions. Copyright (C) 2016 John Wiley & Sons, Ltd. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39109]  |
| 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 | Wang, Cong,Wang, Shuai,Fu, Bojie,et al. SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU[J]. LAND DEGRADATION & DEVELOPMENT,2017,28(3):926-935. |
| APA | Wang, Cong,Wang, Shuai,Fu, Bojie,Yang, Lei,&Li, Zongshan.(2017).SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU.LAND DEGRADATION & DEVELOPMENT,28(3),926-935. |
| MLA | Wang, Cong,et al."SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU".LAND DEGRADATION & DEVELOPMENT 28.3(2017):926-935. |
入库方式： OAI收割
来源：生态环境研究中心
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