红松人工幼林透光伐效果的分析

应用生态学报 ›› 1991, Vol. 2 ›› Issue (1): 8-13.

红松人工幼林透光伐效果的分析

李俊清, 王业遽

东北林业大学, 哈尔滨 150040

收稿日期:1990-01-02 出版日期:1991-01-25 发布日期:1991-01-25

Effect analysis of release cutting for young growth of artificial Korean pine forest

Li Junqing, Yehchu Wang

Northeast Forestry University, Harbin 150040

Received:1990-01-02 Online:1991-01-25 Published:1991-01-25

摘要/Abstract

摘要： 红松人工幼林透光伐分别采取清除红松林冠上方全部(全透林)和50%(半透林)阔叶树的抚育方式。半透林生长快,蓄积是全透林的1.5倍;叶面积指数、叶面积密度和森林生产力分别是全透林的1.3、0.8和1.3倍。全林营养元素积累量大,吸收的太阳辐射比全透林多100.3×10⁶J/m²,光能利用率高0.06%。最后,根据乌道特公式证明,幼林半透抚育效果良好,有利于形成复层结构的林分,充分利用环境资源,减少竞争,提高森林生产力。

关键词: 透光伐, 林分结构, 红松幼林

Abstract: Release cutting of an artificial Korean pine forest can remove all or 50% broadleaved trees over the canopy. The half-released stand is characterized by fast growth and high stand stocking. Its leaf area index, leaf area density and forest productivity are respectively 1.3, 0.8 and 1.3 times larger, solar radiation absorption is 100.3×10⁶J/m² more, and solar energy utilization rate is 0.06% higher than those of all-released one, Its nutrient accumulation rate is also larger. For young forest, half-release cutting is benefit to the formation of vertical stand structure, full utilization of environmental resources, decrease of competition and enhance of forest productivity.

Key words: Release cutting, Stand structure, Young growth of Korean pine

李俊清, 王业遽. 红松人工幼林透光伐效果的分析[J]. 应用生态学报, 1991, 2(1): 8-13.

Li Junqing, Yehchu Wang . Effect analysis of release cutting for young growth of artificial Korean pine forest[J]. Chinese Journal of Applied Ecology, 1991, 2(1): 8-13.

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