surface soil 表面土壤; 地表土; 地面土壤; 耕作层土壤种; 土壤表层 aggregate stabilized soil base 粒料稳定土基层 .
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免耕模式的优点被强调为减少水分蒸发与逃逸，减少土壤侵蚀与表面土壤衰竭。
Advantages claimed for no-till are that it decreases water evaporation and runoff, soil erosion and topsoil depletion.
水蒸发后，土壤表面留下一层盐。
As the water evaporates, a crust of salt is left on the surface of the soil.
一旦接触土壤表面，这条“鼻涕虫”就会发生另一种变形。
Once it reaches the surface of the soil, the "slug" undergoes another transformation.
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