退化草地

deteriorated grassland的用法和样例：

例句

The results show that undegraded grassland and lightly degraded grassland were decreasing, moderately degraded grassland and seriously degraded grassland were increasing.结果表明，研究区无退化草地面积和轻度退化草地面积减少，中度退化草地面积和重度退化草地面积增加。

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