Zhai s formula was applied to analyze the losses caused by stake-cuttings in na-ture and deterioration of environment and extinction of plant species.

• 本文探讨了经济建设与生态建设的关系,并利用翟氏公式分析了山采造成的生态效益的损失,及因此带来的环境恶化和种质资源的灭绝。