凹叶厚朴伴生树种与混交比例选择

凹叶厚朴与杉木、马尾松的不同混交比例、不同立地质量等级的造林对比试验结果表明：不同的混交比例,对凹叶厚朴、杉木、马尾松的胸径和树高生长,以及凹叶厚朴的树皮率都有极显著影响。马尾松是凹叶厚朴优良的伴生树种,种间关系良好。凹叶厚朴、马尾松的混交比例以5马5朴较为合理。杉木与凹叶厚朴混交效果较差。

Selection of Associated Tree Species and Mixed Proportion of Magnolia officinalis biloba

Based on the afforestative contrast test of Magnolia officinalis biloba,Cunninghamia lanceolata and Pinus massoniana lamb under the different mixed proportion and site type conditions,The results revealed that the different mixed proportion significantly affected diameter、tree height growth of Magnolia officinalis biloba,Cunninghamia lanceolata and Cunninghamia lanceolata,and the influence of bark deduction of Magnolia officinalis biloba reached extremely significant level,Pinus massoniana lamb was associated tree species for Magnolia officinalis biloba,and the interspecific relationship of the two species was concerted.It was suitable that the mixed proportion of Magnolia officinalis biloba and Pinus massoniana lamb is 5tree（Magnolia officinalis biloba） to 5 tree（Pinus massoniana lamb）,which had no significant effect on the mixed proportion of Magnolia officinalis bilobaand Cunninghamia lanceolata.