2.11 自然侵蚀 (Natural Erosion):登山步道的自然侵蚀是指登山步道的表土层 被雨水或融雪后的水所冲蚀,或因洪水、泥石流、自然荒芜等因素,造成步道的破坏。
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natural erosion rate 自然侵蚀速率
Little White River from the Yellow River by the flood of natural erosion, the formation of underground infiltration.
小白河由黄河改道经洪水自然冲刷、地下渗透形成。
Bricks have been stolen to build houses, for agriculture or to sell as souvenirs to tourists — exacerbating the natural erosion wrought by wind, rain and sandstorms.
被盗的砖块用于建造房屋、农业或者作为纪念品卖给游客——加剧了风、雨和沙尘造成的自然侵蚀。
Bricks shave been stolen to build houses, for agriculture or to sell as souvenirs to tourists — exacerbating the natural erosion wrought by wind, rain and sandstorms.
被盗的砖块用于建造房屋、农业或者作为纪念品卖给游客——加剧了风、雨和沙尘造成的自然侵蚀。
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