2009•Jieshui guan'gaiRequires access
Influence of Vegetation Coverage on Soil Moisture in Desert Grassland
Yan Yong-guang
Open publisher page 4 citations
Abstract
Taking the Xilamuren grassland as studying object,through measuring the soil moisture under different vegetation coverage,the influence of vegetation coverage on soil moisture in desert grassland is studied in this paper.The results show that there exists significant positive correlation between soil moisture and vegetation coverage.Especially in the range of 10 cm depth,the increase tendency of the soil moisture with the increase of the vegetation coverage depth is quadratic parabola.Due to the difference of root distribution,the change of soil moisture in different depth is different,soil moisture under shrub vegetation coverage is obviously higher than any other vegetation in the range of 0 to 40 cm,soil moisture in slope top is the lowest.The change of vegetation coverage affects not only soil moisture but also the space distribution of soil moisture.The slightly degenerated floodplain meadow vegetation is beneficial to keep relatively uniform space distribution of soil moisture.