湖南大京水库集水区杉木林群落演替动态  

Successional Dynamics of Cunninghamia lanceolata Forest Community in Dajing Reservoir's Catchment,Hunan Province

作　　者：徐永福[1] 喻勋林[1] 王莉青[1] 邢金龙[1] 

机构地区：[1]中南林业科技大学林学院,长沙410004

出　　处：《林业资源管理》2011年第4期48-52,共5页Forest Resources Management

基　　金：林业公益性行业科研项目(200804001)

摘　　要：对大京水库集水区杉木林群落进行调查,分析各个时期具有代表性的林分,并研究杉木林群落演替过程的种群组成及群落结构变化,得出大京水库集水区杉木林群落演替的4个特点:1)大京水库集水区杉木林附近保存有常绿阔叶林,为杉木林演替奠定充足的种源;2)首先侵入杉木林地的常绿阔叶树种为日本杜英、黄瑞木和青冈等种类;3)演替树种的侵入通常是从杉木林的林缘和林窗开始;4)杉木林群落演替经过3个阶段,即杉木纯林、杉阔混交林和常绿阔叶林,其群落物种多样性依次升高。This article studies the Cunninghamia lanceolata community＇s successive process of the population composition and the change of the community structure in different periods by investigating the representative forest of Cunninghamia lanceolata in the Dajing reservoir＇s catchment,and offering scientific base for their rational management.Four characteristics of succession about Cunninghamia lanceolata forest in the Dajing reservoir can be concluded：（1）The evergreen forest is preserved near the artificial forest in Daing reservoir,so the succession of Cunninghamia lanceolata forest has enough seed sources;（2）The evergreen broad-leaved trees intruding into the ground of Cunninghamia lanceolata forest firstly are Elaeocarpus japonicas,Adinandra millettii,Cyclobalanopsis glauca and so on;（3）The intrusion of successive trees usually starts from the gap and ledge of Cunninghamia lanceolata forest;（4）Cunninghamia lanceolata forest,community succession through three stages,namely cunninghamia lanceolata forest,cunninghamia lanceolata and and broad-leaved mixed forest and evergreen broad-leaved forest and the community species diversity increases in turn.

关 键 词：杉木林 群落演替 物种多样性 大京水库 湖南 

分 类 号：S718.5[农业科学—林学]