不同坡向、坡位对白花泡桐幼龄林生长的影响  

Effects of Different Aspects and Slope Positions on the Growth of Young Forests of Paulownia fortunei

作　　者：杨国强 Yang Guoqiang(Forestry Bureau of Datian County,Sanming 366100,China)

机构地区：[1]大田县林业局,福建三明366100

出　　处：《防护林科技》2024年第6期78-80,共3页Protection Forest Science and Technology

基　　金：三明市财政局项目:大田县白花泡桐引种试验(明财(资环)指〔2021〕2号)。

摘　　要：通过在福建省大田县开展不同坡向和坡位白花泡桐造林对比试验,结果表明:坡向以阳坡的白花泡桐生长量最大,半阳坡其次,阴坡最低;坡位以下坡位的白花泡桐生长量最大,中坡其次,上坡最低;坡向和坡位及交互作用对白花泡桐的生长量有显著和极显著影响;聚类分析结果显示,2年生和3年生的白花泡桐均分为六类,均将阳坡上坡、半阳坡上坡和阴坡中坡列为一类,但2年生的白花泡桐将阳坡中坡和阴坡下坡列为一类,而3年生的白花泡桐则将半阳坡中坡和阳坡中坡列为一类。A comparative experiment on the afforestation of Paulownia fortunei under different aspects and slope positions was conducted in Lanyu Village,Taoyuan Town,Datian County,Fujian Province.The results showed as follows:the growth of P.fortunei was greatest on sunny slopes,followed by semi-sunny slopes,and the lowest on shady slopes;regarding slope position,the growth was highest on lower slopes,followed by middle slopes,and the lowest on upper slopes.Both slope aspect and position,as well as their interaction,had significant and highly significant effects on the growth of P.fortunei.Cluster analysis indicated that both two-year-old and three-year-old P.fortunei could be categorized into six classes,with sunny upper slopes,semi-sunny upper slopes,and shady middle slopes grouped together.However,for two-year-old P.fortunei,sunny middle slopes and shady lower slopes were classified as one group,while for three-year-old P.fortunei,semi-sunny middle slopes and sunny middle slopes were classified as one group.

关 键 词：白花泡桐 坡向 坡位 幼龄林 生长指标 

分 类 号：S792.430.5[农业科学—林木遗传育种]