以下为句子列表：
英文: Meanwhile, the evaluation has changed from a single aspect su ch as vegetation and soil to a comprehensive evaluation including deterioration of environment and degradation of soil morphology and fertility. ②Studies on a theoretical basis and basic princi
中文: ③恢复与重建的生态系统功能与效益的研究，其效益评价由生物多样性、水土保持功能、土壤养分、小气候等单一方面转向利用灰色系统理论及系统工程方法进行综合评价。
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