前茬林分密度对2代4年生杉木林生长的影响  

Impacts of Stand Density of First-rotation Chinese Fir on Growth of 4-year-old, Second-rotation Chinese fir Plantations

作　　者：陈清山[1] 张海燕 吴庆敏 潘瑞民 杨旭静 

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建省邵武市林业局,福建邵武354000 [3]福建省南平造纸营林总公司,福建南平353000 [4]福建省南平峡阳国有林场,福建南平353005

出　　处：《福建林学院学报》2004年第3期202-205,共4页Journal of Fujian College of Forestry

基　　金：CAF/IDRC/CIFOR国际合作科学基金资助项目(REDFOL专题"中国杉木人工林多代经营立地管理与生产力研究");国家自然科学基金重点资助项目(39630240)

摘　　要：通过建立固定标准地,研究福建南平峡阳国有林场一片29年生、20地位指数级的第1代杉木人工林采伐前的林分密度和采伐后的立地管理措施对第2代4年生杉木林分生长的影响,结果表明,第1代杉木人工林的林分密度对2代4年生杉木林分的生长有极显著影响,最高密度等级(1500株·hm-2以上)的第1代杉木林在采伐后营造的第2代杉木林,其4年生的生长量为最低 采伐后的立地管理措施对2代4年生杉木林分生长的影响不显著The effects of the stand density of a 29-year-old, first-rotation (site index 20) Chinese fir plantation before felling and site management after felling on growth of 4-year-old, second-rotation Chinese fir plantation in Xiayang State Forest Farm, Nanping, Fujian, China were investigated by permanent sampling plot .The results showed that stand density of the first-rotation Chinese fir plantation had highly significant effects on the growth of 4-year-old, second-rotation Chinese fir plantation. Growth rate of 4-year-old, second-rotation Chinese fir plantation were significantly lower in the plots with highest level of stand density ((over 1 500 stem·hm^(-2))) of the first-rotation Chinese fir than those in the plots with lower levels of stand density. Site management treaments after felling had no significant effects on the growth of 4-year-old, second-rotation Chinese fir plantation. High stand density of the first-rotation Chinese fir is probably one of the important factors responsible for the soil deterioration and yield decline.

关 键 词：杉木 2代 林分密度 立地管理 生长 

分 类 号：S725.7[农业科学—林木遗传育种]