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临界坡度
释义
临界坡度
Encyclopedia
理学
土壤水蚀
释
critical slope gradient for soil erosion
临界坡度
坡面侵蚀量随坡度变化关系发生转折的坡度。坡度是影响坡面侵蚀的一个重要因素。在一定范围和条件下,坡面侵蚀量与坡度成正比关系,而当坡度超过一定限度后,侵蚀量与坡度成反比关系,说明坡面侵蚀存在一个由随坡度增大而增大转变为随坡度增大而减小的界限坡度,即土壤侵蚀的临界坡度。
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