透光抚育对人天混红松林群落结构与生产力的影响  

Effect of Crown Thinning on Structure and Productivity of Korean Pine Plantation Communities

作　　者：屈红军[1] 牟长城[1] 孙晓新[1] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150040

出　　处：《林业科技》2008年第6期11-14,共4页Forestry Science & Technology

基　　金：黑龙江省科技攻关项目(GA07B301-02)部分内容

摘　　要：采用样带网格调查和群落重要值分析法,研究透光抚育对人天混红松林群落的树种组成结构、径级分布、蓄积量和红松蓄积生产力的影响效果。结果表明,沿由小到大的透光抚育强度,人天混群落中红松重要值依次增大,红松大径木比例依次增加,小径木比例依次减少,群落蓄积量波动型增加,红松蓄积生产力依次增加。The effects of crown thinning on tree species composition structure, diameter classes distribution, volume and volume productivity of korean pine plantation communities were studied by using sample plot with net check survey method and community importance value analysis method. The results showed that importance value of korean pine in plantation communities increased in turns along with the crown thinning intensity increasing, proportion of larger diameter classes increased in turns, proportion of smaller diameter classes decreased in turns, community volume increased by fluctuating model, volume productivity of korean pine increased in turns.

关 键 词：红松人工林 结构特征 生产力 透光抚育 

分 类 号：S718[农业科学—林学] S753.511