Think about this, decomposing leaves create heat that warms the soil; the warm soil in turn affects the growth, the conditions of organisms there.
想想看：叶子在腐烂时会产生热量，使土壤升温；反之，温暖的土壤又影响了微生物的生存条件。
2
The land started to get drier, which in turn caused a huge decrease in the amount of vegetation because vegetation doesn't grow as well in dry soil, right?
土地开始变得干燥，这反过来又导致了植被数量的大量减少，因为植被在干燥的土壤里无法生长得很好，对吧？
3
This combination of severe rainstorms and droughts, in turn, can lead to more flooding, landslides, soil erosion and other disasters.