英语语法分析

And the effects of the site type, silviculture density and stand age on the above indexes are studied.

并分别立地类型、造林密度、林分年龄对这些指标的影响进行了研究。

The lower limit of forest price should be determined by the current cost of silviculture and reevaluation of capital.

认为林价下限的计算应以现行营林成本和重置完全资金占用为依据；

The present situations and management models of seedling production, silviculture and fire prevention in Turkey were described.

主要介绍了土耳其林木种苗生产、营造林和森林防火现状和管理模式。