人类不合理的生产活动 Irrational human production activities ; Irrational production activities of human
指出正是由于不合理的人类活动，对汾河上游流域的环境产生了重大的影响，造成了植被的破坏、野生动物濒临绝迹、水土流失和土地退化的加剧。 。
Secondly, , wild animals lost their natural living environment owing to vegetation destruction, so some animals now become rarer and rarer besides of macro-animals being extinct, and so on.
不合理人类活动是草地退化的主要驱动因素，决定了自然条件基本相同地区的草地退化强度的空间分异。
Irrational human activities, which decide the spatial distribution of grassland degradation intensity under the similar natural conditions, are the main driving factors of grassland degradation.
驱动土地覆被变化的主导因素是人类经济活动对自然资源的不合理利用。
The drive factor is local economic action, which use natural resource immoderately.
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