It has depleted aquifers, driven up fertilizer use, reduced the diversity of rice breeds that are planted, and polluted the air with the smoke of burning rice stubble.

这种体系耗尽了含水层里的水，增加了化肥的使用，减少了种植的水稻品种的多样性，燃烧稻茬产生的烟雾也污染了空气。