论文部分内容阅读
(十)循环周期期间的伐木计划1、采伐区域别的伐木量(1)按平均指数计算的方法①根据伐木林地的蓄积、周期间平均生长量、平均伐木率计算年平均伐木量。R_年=U_o(〔1+(P/100)〕~(n-1)·(D/100))/(〔1+(P/100)〕~(n-1))·C/100式中:R_年—年平均可采伐量规模;U_o—循环区被伐林地的总蓄积(m~3);P—伐木林地周期间平均生长率(%);n—循环周期;C—平均伐木率。
(X) Logging Plan during the Cycle 1. Logging Volume in the Logging Zone (1) Method by Average Index ① The annual average logging volume is calculated based on the stock of logging land, the average growth rate during the week and the average logging rate. R_year = U_o (1+ (P / 100)] ~ (n-1) · (D / 100)) / (1+ (P / 100)] to (n- 1)) · C / 100 Where: R_year - The annual average decidable size; U_o-circulation area is the total volume of logging forest land (m ~ 3); P-logging average growth rate during the week (n) Average logging rate.