摘要
通过对8檫木2木荷、6檫木4木荷、5檫木5木荷混交林分在5年时生长效果进行比较分析。结果表明:从试验地生长量指标可见,檫木与木荷混交林分种间竟争充分激发长势良好,檫木树冠大落叶多且易腐可改善土壤肥力及有机养分,木荷冠幅窄可增加林内光照,6檫木4木荷混交林分因获取最佳光照、土壤水肥能力及有机养分,既能促进檫木速生丰产又可以提高木荷的生长,综合生长量指标最高;其次为8檫木2木荷;最少为5檫木5木荷。因此,采取檫木与其他阔叶树种混交造林,应选择土层深厚、肥沃、水分条件好的中下坡位林地,激发种间竞争潜能,加强幼林抚育作业措施,适当追施复合肥,延长速生丰产生长期,最终实现生长量更高、干林质量更好混交林分。
Through the comparative analysis of the growth effect of 8 birch 2 wood,6 birch 4 wood,5 birch 5 wood and lotus mixed forest at 5 a.From the growth index of the test site,it can be seen that the competition between the birch and wood-load mixed forest subsections can fully stimulate the long-term good,the birch tree canopy leaves and perishable can improve soil fertility and organic nutrients,wood crown narrow can increase the lighting in the forest,6 birch wood 4 wood lotus mixed forest sub-division because of the best lighting,soil water fertilizer capacity and organic nutrients,the highest growth index;Secondly,8 birch wood 2 wood lotus;A minimum of 5 birch wood 5 wood lotus.Therefore,to take birch and other broad-leaved tree species mixed afforestation,we should choose deep soil layer,fertile,good moisture conditions of the mid-downhill forest land,stimulate the competitive potential between species,strengthen the nursery forest breeding operation measures,appropriate follow-up compound fertilizer,extend the rapid growth of long-term,and ultimately achieve higher growth,dry forest quality better mixed forest points.
作者
周晓平
Zhou Xiaoping(Ninghua County is a State-owned Forest Farm,Fujian,Ninghua 365400)
出处
《中国林副特产》
2022年第4期22-24,共3页
Forest By-product and Speciality in China
关键词
檫木
木荷
混交林
生长量
Birch
Wood lotus
Mixed forest
Growth
