香樟生长效果分析与评价

Analysis and Evaluation of the Growth Effect of Cinnamomum camphora

通过对8年生香樟(Cinnamomum camphora)生长效果进行的分析与评价,结果表明:不同造林方式下香樟树保存率存在差异,纯林造林保存率较高,达90.10%;混交造林保存率较低,带状混交、块状混交保存率仅为74.48%、73.96%。带状混交造林生长最好,平均树高达7.74 m、平均胸径达9.43 cm,生长效果从高到低为带状混交造林>块状混交造林>带状纯林,带状混交造林与块状混交造林、带状纯林造林在树高、胸径生长水平上均也存在着极显著的差异,带状纯林造林和块状混交造林间不存在显著差异。8年生香樟树生长径阶呈正态分布,胸径处于5.0~6.9 cm株数分布最多,占调查样地总数的33.86%,径阶分布区为5.0~10.9 cm,占样地调查总株数的78.48%,胸径分布小于5.0 cm和胸径处于11 cm以上均占总数的10.76%。

The growth effect of 8-year-old Cinnamomum camphora was analyzed.Result shows that there are differences in the preservation rate of different afforestation methods,the preservation rate of 8-year-old Cinnamomum camphora is 90.10%.The mixed afforestation rate is low,and the mixed rate of band mixed and block mixed is only 74.48%&73.96%.The mixed forest is the highest,with an average tree height of 7.74 m and an average DBH of 9.43 cm.The growth effect from high to low is:mixed by strip afforestation>mixture by group afforestation>pure forest by strip,mixed by strip afforestation and mixture by group afforestation,pure forest by stripalso have pole significant differencesin tree height&DBH growth level,there is no significant difference between pure forest by strip afforestation and mixture by group afforestation.The growth order of eight-year-old Cinnamomum camphora is normally distributed,while the DBH is range from 5.0 cm to 6.9 cm,the number of plants,which is the most distributed,constitute 33.86%of the total number of 316 plots;the diameter distribution area is range from 5.0 cm to 10.9 cm,constitute 78.48%of the total number of plants in the inventory sample plot;the DBH distribution is less than 5.0 cm and the DBH is above 11 cm,constitute 10.76%of the total.