Obviously, these results underline the experience of numerous upland farmers: Cultivation without safeguarding a fast and stable vegetative cover of crops inevitably leads to soil loss which means loss of productivity.
英
美
- 显然,这些结果与无数旱地农民的经验相符合:没有保证作物快速稳定的植被覆盖层的耕作无疑会造成土壤损失,进而引起生产力损失。