日本落叶松以林分平均木材积生长率代替林分蓄积生长率可行性验证

Substitution of Average Wood Timber Volume Growth Percentage of Larix olgensis Stand for Stand Volume Growth Percentage

为验证日本落叶松以林分平均木生长率代替林分蓄积生长率的可行性,在日本落叶松林内选取30个固定样地,分5个间隔计算样地蓄积生长率和平均木材积生长率,结果表明:蓄积生长率和平均木材积生长率比较接近,经适用性检验,-3%<相对误差RS(0.49%)<3%,F=1.34<F 0.05=3.06,用林分平均木材积生长率代替林分蓄积生长率可行。

In order to verify the possibility of using the average wood growth rate of Larix olgensis plantation to replace the stand accumulation growth rate,30 fixed plots were selected in Larix olgensis,and the plot accumulation growth rate&average wood volume growth rate were calculated at five intervals.Result shows that:the cumulative growth rate and the average timber growth rate are relatively close,after the applicability test,-3%<relative error RS(0.49%)<3%,F=1.34>F 0.05=3.06,use forest It is feasible to substitute average wood growth rate for stand accumulation growth percentage.