They then had to face widespread soil erosion.

导致大量水土流失。

It can also fix the soil and prevent soil erosion.

并能够固定土壤使水土不流失。

She and other area farmers began planting acacia trees to help reduce soil erosion.

她和当地其他农民开始种植金合欢树，以减少水土流失。

I always tell my students that we have to find ways of preventing soil erosion.

我总是告诉我的学生，我们必须找到防止土壤被侵蚀的方法。

That will also contribute to soil erosion and degradation, shrinking the available land for pasture.

也将导致土壤侵蚀和退化，缩小可用于放牧的土地面积。

Uprooting these microscopic residents could upset the land's fertility and lead to soil erosion.

将这些微小居民撤走，会干扰土地肥力并导致土壤侵蚀。

Over 70 percent of the nation's territory will be without soil erosion by that date.

届时，全国 70% 以上的领土将不会出现水土流失。

There knots of thin strong roots make these tropical trees the perfect protection against soil erosion.

这些热带树木细长而强壮的根系使其成为抵御土壤侵蚀的最佳保护。

Yet it softens trees, prevents soil erosion, and shelters animals too small for us to notice.

然而，它软化树木、防止土壤侵蚀，还为我们难以注意到的小小动物提供庇护所。

By 2025, China aims to effectively control soil erosion caused by human activities in key regions.

到 2025 年，中国将在重点地区有效控制由人类活动引起的土壤侵蚀。