【摘要】 对20 a生火力楠不同混交模式生长效应调查分析,结果表明,火力楠不同模式混交造林效果优于纯林,混交林产量比增6.2%~46.4%.火力楠作为主要树种与马尾松、杉木混交宜采用行间混交,混交比例按2∶1;火力楠作为伴生树种与杉木、马尾松混交宜采用插花式混交,混交比例按1∶3,种间关系较为协调.火力楠混交林与纯林比较,林分结构比较复杂,能充分利用光照条件,枯落物多且成分复杂,有利于改善林内小气候及土壤状况,林分结构比较稳定.更多还原

【Abstract】 The growth effect of different mixed mode on 20 year old Michelia macclurei has been analyzed.Results showed that: afforestation effect of different mixed mode was better than pure forests of michelia macclure,yield of mixed forest increased of 6.2% to 46.4%.As the main species,michelia macclurei,pinus massoniana,and Cunninghamia Lanceolata,mixed mode of between rows and rows was took for them,and mixed ratio accounted for 2∶1;As the associated tree species,michelia macclurei,pinus massoniana and cunninghamia lanceolata,inserted fancy mixed mode could be appropriate for them,mixed ratio accounted for 1∶3.Compared to michelia macclurei pure forest,forest stand structure of michelia macclurei mixed forest was more complex,can make full use of illumination conditions,and dry falling objects was much and complicated composition which was good for the microclimate and soil conditions,forest stand structure was stable.更多还原