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.
人类不合理的活动是产生环境问题的根源。
Deteriorating environment due to improper human activity is threatening human survival and development.
人类不合理的活动是产生环境问题的根源。
Deteriorating environment due to improper human activity is threatening human survival and development.
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