【摘要】 采用部省良种基地广东省信宜市林科所马尾松种子园高产脂马尾松10个优良家系的混合种子进行育苗造林,调查结果显示:在粤西地区瘦瘠山地能成功营建高脂马尾松丰产林,4.5年生平均树高为3.91 m,平均胸径为5.7 cm,平均单株日(单刀)产脂量为19.3 g,分别比同龄普通种的树高、胸径和产脂量高13.3%、43.9%、83.8%,推广效果非常明显。更多还原

【Abstract】 In order to study the afforestation growth effect of high-resin-yield masson pine family selected by Guangdong forest research institute,10 mixed seed of super family produced by Xinyi masson pine seed orchard was used for large scale afforestation in Xinyi city.It was proved that the forest can grow well in that infertile soil with 3.91 m mean height and 5.7 cm mean DBH at 4.5 years old,it is 13.3% and 43.9% higher than the ordinary masson pine control.Mean while,the resin producing capacity is very high,the daily average resin output is 19.3 g per tree,which is 83.8% higher than the control.更多还原