Prolonged droughts have also led to desertification.

长期的干旱会导致沙漠化。

Desertification occurs when fertile farmland turns into desert.

沙漠化发生在肥沃的农田变成沙漠时。

The aim is to create a natural shield against desertification.

其目的是建立一个天然屏障来抵御沙漠化。

So the process of places becoming deserts is called desertification.

因此，这些地方变成沙漠的过程被称为沙漠化。

But what is troubling is the increasing desertification in the region which is essentially pulling the Sahara desert south.

但令人不安的是，该地区日益严重的沙漠化实际上正在把撒哈拉沙漠往南拉。

Human activities such as mining and agriculture also contribute to desertification, Sternberg notes.

斯腾伯格指出，采矿和农耕等人类活动也会导致荒漠化。

The United Nations desertification agency says the Green Wall project faces many problems.

联合国防治荒漠化机构表示，绿色长城计划面临许多问题。

For example, in some areas of northwest China desertification is also a serious problem.

例如，中国西北部某些地方的沙漠化也是一个很严重的问题。

Population growth, urbanization and desertification triggered by increasing climate change have escalated the conflict.

如今气候变化加剧，因此带来的人口增长，城市化，以及土地沙漠化问题使这一冲突愈演愈烈。

Sandstorms in China appear to have increased in recent years as a result of desertification.

土壤的沙漠化使近年来中国的沙尘暴呈上升趋势。