Of course, wealthy countries are affected: long-term drought in Australia has caused certain crop yields to plummet.
当然了，富裕国家也受到了影响：长期的干旱已经造成澳大利亚农作物产量暴跌。
2
By some estimates acid rain falls on a third of all agricultural land; some climate experts predict long-term reductions in the country's vital rice crop.
据估计，三分之一的可耕地为酸雨区，一些气候学家预测在长期范围内该国的粮食作物将出现减产。
3
The soil became acid obviously, the exchangeable al in soil increased significantly, crop grew poorly and the yield decreased after applying sole chemical fertilizer for longterm.