长白山森林不同演替阶段采伐林隙幼苗更新特征  

Characteristics of Seedlings in Logging Gaps of Forests at Different Succession Stages in Changbai Mountain

作　　者：宋新章[1] 张智婷[2] 张慧玲[1] 肖文发[3] 杨建国 

机构地区：[1]浙江林学院国际生态研究中心,浙江杭州311300 [2]河北北方学院,河北张家口075000 [3]中国林业科学研究院森林生态环境与保护研究所,北京100091 [4]山东省鱼台县鹿洼煤矿,山东鱼台272300

出　　处：《江西农业大学学报》2010年第3期504-509,516,共7页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家"十五"科技支撑计划项目(2004BA510B05)

摘　　要：对长白山地区不同恢复演替阶段的杨桦次生林、次生阔叶林和阔叶红松林采伐林隙内的更新幼苗进行研究。结果表明:处于不同恢复演替阶段的3种林型采伐林隙内更新幼苗的平均高、平均基径、物种多样性和均匀度均大于非林隙林分,生态优势度低于非林隙林分。处于过渡阶段的次生阔叶林非林隙林分内更新幼苗的组成更接近于先锋群落杨桦次生林,采伐林隙内更新幼苗的组成更接近于顶极群落阔叶红松林,这表明采伐林隙干扰促进次生阔叶林向阔叶红松林的演替。红松幼苗在阔叶红松林非林隙林分中占绝对优势。The seedlings in logging gaps were studied at following different forest succession stages in Changbai Mountain： Populus davidiana-Betula platyphylla secondary forest at the early succession stage,secondary broad-leaved forest at the transitional stage and broad-leaved korean pine mixed forest at the late succession stage.The result showed that the mean height,mean basilar diameter,diversity and uniformity of seedlings in the logging gaps were bigger than those in the non-logging gaps in all the three types of forests,while the dominance of seedlings in the logging gaps was lower.The composition of seedlings in the non-logging gaps in the secondary broad-leaved forest was similar to that in the Populus davidiana-Betula platyphylla secondary forest,but the composition of seedlings in the logging gaps in the secondary broad-leaved forest was similar to that in the broad-leaved korean pine mixed forest.This result suggests that logging gaps accelerated the succession of secondary broad-leaved forest to broad-leaved korean pine mixed forest.The korean pine seedlings were the dominate species in the non-logging gaps of broad-leaved korean pine mixed forest.

关 键 词：采伐林隙 幼苗更新 演替 长白山 

分 类 号：S718.541[农业科学—林学]