毛竹混交林林分生长状况和结构特征研究

Study on Growth Condition and Structure Feature of Moso Mixed Stand

对福建省建阳交溪毛竹阔叶树混交林、毛竹杉木混交林、毛竹杉木阔叶树混交林及毛竹纯林等6种不同混交模式林分生长状况进行比较,结果表明:混交林毛竹个体生物量、毛竹胸径和竹高较大,不同模式林分间的胸径、竹高、冠幅等生长因子均达显著差异;竹阔混交林较有利于竹鞭孕芽发笋;各模式竹林结构综合评判为一般经营竹林;竹林竹鞭长、鞭径、鞭节生长以竹阔比例为5:5林分竹鞭较好。

Comparative study was carried out for the growth condition of six different models of mixed stand,including moso-broadleaved tree mixed stand,moso-fir mixed stand,moso-fir-broadleaved tree mixed stand and pure moso stand in Jiaoxi,Jianyang,Fujian Province.The result showed that moso mixed stands had higher biomass,DBH and height,and the growth factors like DBH,height and crown of different models of stand were significantly different.Moso-broadleaved tree mixed stand did good to shooting.These models of stands were comprehensively evaluated as general managed bamboo stand for structure.The stands with the moso-broadleaved proportion of 5：5 could produce better rhizome in terms of length,diameter and node growth.