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土壤侵蚀是个可被人类活动加速的自然过程。一旦出现加速侵蚀,便可威胁粮食生产。在所有人为导致的土壤退化中,由于侵蚀造成永久性的土壤生产力的损失,在全球范围内是最严重的。
Soil erosion is a natural process that can be accelerated by human activities. Once there is accelerated erosion, food production can be threatened. In all human-induced soil degradation, the loss of permanent soil productivity due to erosion is the most severe in the world.