The mountainous region has seen rainfall lasting weeks, saturating the top soil.

山区持续降雨数周，使表层土壤饱和。

Lurking just below the top soil, may be millions of tons of frozen water.

潜伏在覆土下的，可能是数百万吨的冰冻水。

Fisher says the soaking is on top already saturated soil from the past months.

费舍尔表示，过去几个月以来雨水已经浸透了土壤。

The UN says about a third of the world's top soil has been degraded through overuse.

联合国称世界上约三分之一的表层土壤都因过度使用而退化。

Water swept the land clean of top soil, every bit of gravel, every bit of sand, gone.

水把土地的表层土壤扫干净，每一点砾石，每一点沙子都消失了。

So we call that loam, right, and water, as it rains, easily absorbs into that loam or that earthy top soil.

我们称之为壤土和水，当开始下雨的时候，壤土或者泥土表层部分很容易就会吸水。

Sometimes we're going to have excessive rains and floods that could wash away our top soil, which we depend on for agriculture.

有时我们会遇到过多的降雨和洪水，可能会冲走我们农业赖以生存的表层土壤。

A lusher covering of plants would shield the sediments from the elements and plant roots would hold the top soil in place.

更茂盛的植物覆盖物可以保护沉积物不受元素影响，植物根系可以固定表层土壤。

If you're planning ahead, top the soil with five to eight centimeters of compost in the fall, and the bed will be highly fertile by spring.

如果你提前做计划，那就秋天的时候在土壤上层表面撒上5到8厘米的堆肥，到了春天土壤就会变得非常肥沃。

It was caused by a particularly hot dry air that coincided with failed farming practices that exposed the top soil to the sun and wind, and created lots of dust storms.

这是由于极度炎热干燥的空气和错误的耕作方式，使表层土壤暴露在风吹日晒之下，于是便形成了许多沙尘暴。

What you're looking at here with our 3D visualization tool is the difference between desert top soil and our earthy top soil that you and I might use to plant our vegetables in our garden, for instance.

通过我们的3D可视化工具，你看到的是沙漠表层土和土壤表层土的区别。比如，我和你在花园里种植蔬菜用的就是土壤表层土。