1.Soil erosion and desertification due to poor farming practices occurs, especially on overgrazed land.
落后耕种习惯引起的水土流失和荒漠化经常发生，特别是在过度放牧的土地上。
2.The winds of the Great Plains caused huge dust storms on overgrazed lands.
大平原上刮起的狂风在遭到过分放牧的草原上形成巨大的沙暴。
3.More dust, also an aerosol, circulates in the atmosphere when land is cleared, burned or overgrazed.
当我们清扫大街，燃烧或者过度放牧时，更多的粉尘，这也是一种喷雾状物，参与大气循环。
4.The grasslands were overgrazed and coal-burning power plants were be fouling the air.
草原上牧群太多，烧煤的电厂正在污染着空气。
5.In China, the land is overgrazed causing an ongoing increase of desert like wasteland and dust bowls.
在中国，大地被过度放牧导致一个持续增长的沙漠如荒地以及沙尘暴。
6.Potential soil carbon sequestration in overgrazed grassland ecosystems
过度放牧草地生态系统中潜在土壤碳的消失