生草地
They entered the grass covered land.
?他们进入了草地.
It's significant for understanding the soil loss mechanism of grass covered land to study the changing process and characteristics of overland flow energy with different coverages of grass vegetation and spatial distributions in the slope-gully erosion system.
研究坡沟系统坡面草被不同盖度及空间配置下坡面流能量的变化过程与特征,对于揭示草被减蚀作用机理有重要意义。
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