单词 | 草场退化 |
释义 | 草场退化干旱、半干旱地区草原生态遭到破坏(如过度放牧或垦荒),致使草原产草量下降,优良牧草减少,土质恶化,甚至逐渐沙化和盐渍化的现象pasture deterioration工业文明产生了土壤沙化、草场退化等不少严重的生态后果。 Industrial civilization has had many serious ecological consequences such as desertification and pasture deterioration.常住牧民过度采伐放牧对草场退化造成了一定的 |
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