Effect of Bromus inermis Leyss Planting on Dynamic Changes of Soil Moisture Contents on the Bare Slope

Abstract:

Experiment was executed to plant eco-grass of Bromus inermis Leyss on 15°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/hm² of overground biomass and 1744.1kg/hm² 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.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1648-1652
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1648
• Online since: September 2013
• Authors: Tie Jun Sun*, Baderihu Tajilake
• Keywords: Bare Slope, Bromus inermis Leyss, Dynamic Changes of Soil Moisture Content

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