沙漠化加剧英文

Desertification is the degradation of land in arid and dry areas, resulting from human activities and influenced by climatic variations.The primary reasons for desertification are overgrazing, over cultivation, increased fire frequency, overdrafting of groundwater, increased soil salinity, and global climate change.A major impact of desertification is loss of productive capacity. In Africa, for instance, if current trends of soil degradation continue, the continent might be able to feed just 25% of its population by 2025. Desertification is also widespread in many areas of China. The populations of rural areas have rapidly increased. While there has been an increase in livestock, the land available for grazing has decreased. Also the importing of European cattle, which have higher food intakes, has made things worse. A number of solutions have been tried in order to reduce the rate of desertification and regain lost land. Oases and farmlands in windy regions can be protected by planting tree fences or grass belts. Sand that manages to pass through the grass belts can be caught in strips of trees planted as wind breaks 50 to 100 meters apart adjacent to the belts. Small plots of trees may also be scattered inside oases to stabilize the area. On a much larger scale, a "Green Wall of China", which will eventually stretch more than 5,700 kilometers in length, nearly as long as the Great Wall of China, is being planted in north-eastern China to protect "sandy lands" – deserts created by human activity.

沙漠化的英文翻译是desertification。沙漠化指在极端干旱、干旱、半干旱和部分半湿润地区的沙质地表条件下，由于自然因素或人为活动的影响，破坏了自然脆弱的生态系统平衡，出现了以风沙活动为主要标志，并逐步形成风蚀、风积地貌结构景观的土地退化过程。定义的关键是“沙质地表条件”。正因为如此，凡是具有发生沙漠化过程的土地都称之为沙漠化土地。沙漠化土地还包括了沙漠边缘风力作用下沙丘前移入侵的地方和原来的固定、半固定沙丘由于植被破坏发生流沙活动的沙丘活化地区。

Desertification is the result of soil fallow,a poor environment,abnormal weather and sandstorms frequent serious natural disasters,