Effect of Bromus inermis Leyss planting on dynamic changes of soil moisture contents on the bare slope

文献类型： 外文期刊

第一作者： Sun, Tiejun

作者： Sun, Tiejun;Baderihu

作者机构：

关键词： Bromus inermis Leyss;bare slope;dynamic changes of soil moisture content

期刊名称：ENVIRONMENTAL PROTECTION AND RESOURCES EXPLOITATION, PTS 1-3

ISSN： 1022-6680

年卷期： 2013 年 807-809 卷

页码：

收录情况： SCI

摘要： Experiment was executed to plant eco-grass of Bromus inermis Leyss on 15 degrees bare slopes, and study effect of biological characters on dynamics of soil moisture contents. The results indicated that vegetation restored quickly on the bare slope after the eco-grass planted. There were 2473.4 kg/hm(2) of overground biomass and 1744.1kg/hm(2) of underground biomass, and 70% of underground biomass was in 0-10cm layer of soil. Meanwhile, there was a regulatory mechanism of soil moisture content for Bromus inermis Leyss. When rainfall was enough, soil moisture content in 0-80 cm layer could reach to the most of 26.83% quickly this year. Next it could decline near to the first value of 19.81% after rainfall stopped, and keep a dynamic balance between 19.48% and 19.96%. Moreover, the regulatory mechanism realized though underground biomass, and was clearer with underground biomass increasing, especially in the 0-40cm layer of soil.

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