The expansion of desert-like conditions into areas where they did not previously exist is called desertification.
沙漠化是指类似沙漠的生态环境扩张到原本并没有沙漠的区域。
There is little doubt, however, that desertification in most areas results primarily from human activities rather than natural processes.
然而，几乎毫无疑问，大多数地区的沙漠化主要是由于人类活动而不是自然过程造成的。
Desertification is accomplished primarily through the loss of stabilizing natural vegetation and the subsequent accelerated erosion of the soil by wind and water.
起到稳定作用的自然植被不断减少，随后土壤受风雨的侵蚀加速，就成为了沙漠化的主要成因。
Four specific activities have been identified as major contributors to the desertification processes: overcultivation, overgrazing, firewood gathering, and overirrigation.
导致沙漠化的主要因素有四个：过度种植、过度放牧、过度砍伐、过度灌溉。
Those green trees prevent desertification, make the air cleaner and protect people from the hot sun.
那些绿色的树木防止荒漠化，使空气更清新，保护人们免受烈日的暴晒。
Instead of enjoying a relaxing life, he volunteered to save the soil from desertification by planting trees in Korla, Xinjiang.
他没有享受轻松的生活，而是志愿在新疆库尔勒植树，拯救土地免于荒漠化。
During the dry periods that are common phenomena along the desert margins, the pressure on the land is often far in excess of its diminished capacity, and desertification results.
在沙漠边缘地区常有的旱季，土地所受的压力往往远超其被削弱的承受能力，沙漠化因此发生。
Climate change is inter-linked with other global environmental problems such as deforestation, desertification and freshwater degradation.
气候变化与森林砍伐、荒漠化和淡水退化等其他全球环境问题相互关联。
Niger: The Race Against Hunger and desertification.
尼日尔：与饥饿和沙漠化赛跑。
Much like the Sahara in Africa, desertification also threatens South Australia.
正如撒哈拉沙漠之于非洲，荒漠化同样威胁着南澳大利亚。
So why do we invariably connect higher temperatures with droughts and desertification?
然而，为什么我们总是抓住温度升高与干旱和荒漠化联系不放呢？
Desertification, is a form of land degradation, by which fertile land becomes desert.
荒漠化这一形式的土地退化，使肥沃的土地变成了沙漠。
Experts warn burgeoning populations, climate change are accelerating desertification in region.
专家警告说迅速增长的人口、气候变化将加速地区沙漠化。
Besides desertification and grassland shrinkage, the region's lakes and wetlands are also drying up, experts say.
专家表示，除了沙漠化和草地退化，本地区的湿地和湖泊也在逐渐干枯。
But in places already prone to drought things will by and large get drier, sometimes to the point of desertification.
但在已趋于干旱的地区，大体来说，会变得更加干燥，有时甚至会导致荒漠化。
Think Sudan. People forget that extreme poverty as a result of desertification explains much of that country's travails.
想想苏丹吧，人们都已经忘了那里极度的贫穷是由荒漠化造成的。
Instead of being sucked downward into the spiral of desertification, they have kick-started a new, virtuous cycle of life.
这些土地不仅没有被吞进沙漠化的漩涡中，反倒摇身一变成全了一段新生命的良性循环。
Known or probable damage includes ocean acidification, loss of rain forests, degradation of ecosystems, and desertification.
已知或可能的损害包括海洋酸化、热带雨林消失、生态系统退化还有沙漠化。
It also can influence clouds and precipitation, leading to droughts; which, in turn, leads to desertification and more dust.
反过来它也能影响云和降水，导致干旱，甚至导致沙漠化和多尘。
Rising temperatures combined with less predictable rain patterns are likely to reduce water supplies and augment desertification.
随着气温的升高，在加上少雨的降雨模式导致水资源的供应更加匮乏和城市沙漠化。
In the next 40 years, agricultural land will be lost to urbanization, desertification, sea level rise and increasingly salty water.
今后40年，农用地将因城市化、沙漠化、海平面上升及咸水不断增加等因素而减少。
Collectively we have to work to roll back desertification in the North, erosion in the Southeast and deforestation in the SouthWest.
我们所有人都必须努力击退北部的沙漠化，东南的水土流失和西南的森林流失。
Over 5000 years ago the same land was actually covered with fertile grasslands - the desertification has took place in the last 2000 years.
大概5000年前这片土地还是富饶的大草原，最近2000年持续不断的沙漠化改变了该国的地貌。
For example, it says climate change and land use are expected to increase desertification worldwide, increasing the risk of sand and dust storms.
例如，气候变化和土地的开发使用预计将加剧世界范围的沙漠化，增加沙尘暴的风险。
This figure is even higher in the drylands where inappropriate policies and inadequate livestock management contribute to advancing desertification.
而旱地的这一比例则更高，原因是政策不当和畜牧业管理不足，导致荒漠化蔓延。
This figure is even higher in the drylands where inappropriate policies and inadequate livestock management contribute to advancing desertification.
而旱地的这一比例则更高，原因是政策不当和畜牧业管理不足，导致荒漠化蔓延。
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