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。
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。
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。
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。
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。
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。
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。
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。
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。
Better management of water resources increased crop yields, reversed desertification, and improved social status and employment opportunities for women.
改善塔里木盆地的水资源管理增加了农作物产量，扭转了沙漠化趋势，提高了妇女的社会地位并增加了妇女的就业机会。
Forests and tree cover combat land degradation and desertification by stabilizing soils, reducing water and wind erosion and maintaining nutrient cycling in soils.
通过稳定土壤，减少水蚀和风蚀并维持土壤养分循环，林木覆盖能够防止土地退化和荒漠化。
Around 348 million hectares of forests are used to conserve soil and water, control avalanches and desertification, stabilize sand dunes and protect coastal areas.
大约3.48亿公顷森林用于保持水土资源，控制雪崩和荒漠化，稳定沙丘和保护沿海地区。
Both groups are expanding aggressively. Their style of farming is totally unsuited to the fragile soils of the Chaco and will lead only to desertification and erosion.
这两大团体正以咄咄逼人的态势进行扩张，他们的耕种模式完全不符合查科脆弱的土壤条件，最终只会导致荒漠化和水土流失。
Whether it's rising sea levels, desertification, torrential monsoons, melting glaciers or ocean acidification, climate change is rapidly altering the landscape of our planet.
无论是海平面上升，荒漠化，季风暴雨，冰川融化或是海洋酸化，气候变化正在迅速改变我们这个星球的景观。
For example, say an article discusses the causes of desertification in sub-Saharan Africa. You could say the author has made some excellent points, but he could have gone further.
例如：一篇讨论非洲荒漠化原因的文章，你可以说，作者已经列出一些极好的要点，但他可以走的更远啊。
On this Day, let us reaffirm our commitment to combating desertification and land degradation and mitigating the effects of drought; and let us recognize that enhancing soils enhances life.
值此防治荒漠化和干旱世界日，让我们重申对防治荒漠化和土地退化以及减少干旱影响的承诺；我们应当认识到，改善土壤，就是改善我们的生活。
It seems that the cartoonist is sending a message about the significance of trees in water and soil conservation and the need for everyone to fight against the danger of the desertification.
我认为，漫画家要告诉我们的是：树木对水土保持的重要性，以及每个人参与抵制沙化威胁的必要性。
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。
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。
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。
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