Environmental Studies and Forestry

The effect of Elymus nutans sowing density on soil reinforcement and slope stabilization properties of vegetation–concrete structures

X. Tan, Y. Huang, et al.

This study by Xiangqian Tan, Yongwen Huang, Danwei Xiong, Kun Lv, and Fangqing Chen reveals the optimal sowing density of Elymus nutans for effective slope protection. Discover how biomass, plant height, and erosion resistance peak at 4400 seeds/m², providing critical insights for sustainable vegetation-concrete structures.

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Abstract

This study investigated the optimal sowing density of Elymus nutans for vegetation–concrete structures in slope protection. Six treatments with varying densities (control, 1100, 2200, 3300, 4400, and 5500 seeds/m²) were established. Aboveground biomass increased with density, while plant height, root surface area, root length, and underground biomass initially increased then decreased. Erosion resistance and soil shear strength showed a similar trend, peaking at a medium-high density (4400 seeds/m²). The optimal sowing density was determined to be approximately 4400 plants/m².

Publisher

Scientific Reports

Published On

Nov 24, 2020

Authors

Xiangqian Tan, Yongwen Huang, Danwei Xiong, Kun Lv, Fangqing Chen

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