SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU
SOIL MOISTURE VARIATIONS WITH LAND USE ALONG THE PRECIPITATION GRADIENT IN THE NORTH-SOUTH TRANSECT OF THE LOESS PLATEAU
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DOI：
10.1002/ldr.2604
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发表时间：
2017-04-01
影响因子：
4.7
通讯作者：
Li, Zongshan
中科院分区：
文献类型：
--
作者：
Wang, Cong;Wang, Shuai;Li, Zongshan
研究土壤水分沿降水梯度沿着的空间变化规律，对于改善黄土高原土地管理和指导黄土高原生态恢复具有重要意义。以黄土高原南北样带11个样点的45个样点为研究对象，根据降水梯度和土地利用状况进行了研究。结果表明，土壤水分垂直分布随降水梯度变化较大，尤其是在近地层（0-100 cm）。各土地利用类型剖面平均土壤含水量与年平均降水量（MAP）均存在显著的线性相关关系（P草地>灌丛>林地，但MAP区林地土壤含水量可能高于灌丛
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 grassland > shrubland > woodland, while it might be higher under the woodland than the shrubland in the surface layer in regions with MAP