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中国农学通报 ›› 2016, Vol. 32 ›› Issue (28): 11-15.doi: 10.11924/j.issn.1000-6850.casb16050093

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

基于目标树中心样圆法的华北落叶松天然林抚育间伐生长效应研究

任 达1,张芸香1,郭晋平2,王建让1,3,陈顺治1   

  1. (1山西农业大学林学院,山西太谷 030801;2山西农业大学城乡建设学院,山西太谷 030801;3Lakehead University, Ontario, P7B 5E1, Canada)
  • 收稿日期:2016-05-16 修回日期:2016-07-07 接受日期:2016-07-22 出版日期:2016-10-11 发布日期:2016-10-11
  • 通讯作者: 郭晋平
  • 基金资助:
    山西省国际合作项目“基于CBM的山西森林碳汇功能空间格局及其适应性经营研究”(2014081043);国家公益性行业专项“太行山西侧生态公益林提质增效关键技术研究”(201404417);山西省攻关项目“油松人工林高产高效适应性经营和林地管理技术体系研究”(20140311014-3)。

Effect of Thinning Intensity on Growth of Larix principis-rupprechtii byUsing Survey Method of Circular Sample of Target Tree

Ren Da1, Zhang Yunxiang1, Guo Jinping2, Wang Jianrang1,3, Chen Shunzhi1   

  1. (1College of Forestry, Shanxi Agricultural University, Taigu Shanxi 030801;2College of Urban and Rural Construction, Shanxi Agricultural University, Taigu Shanxi 030801;3Lakehead University, Ontario, P7B 5E1, Canada)
  • Received:2016-05-16 Revised:2016-07-07 Accepted:2016-07-22 Online:2016-10-11 Published:2016-10-11

摘要: 为探究抚育间伐对华北落叶松天然林生长效应的影响,利用目标树中心样圆法,对关帝林区1998年之前进行过不同抚育间伐强度处理的华北落叶松天然林进行实地调查,发现随着抚育间伐强度的增强,华北落叶松单木材积和生物量增加,但不同间伐强度无显著差异。抚育间伐对林分总的材积和生物量有明显影响,重度间伐会造成林分材积和生物量的显著减少。中重度抚育间伐会显著促进华北落叶松单木胸径的增长。采取中度间伐可以促进林分总生物量的增加,而为了大径材的生产可以采用重度抚育间伐措施。

关键词: 渔村妇女, 渔村妇女, 就业, 影响, Logit模型

Abstract: In order to understand the effect of thinning on the growth of Larix principis-rupprechtii natural forest, we investigated the Larix principis-rupprechtii natural forest which was thinned in different intensities before 1998 in Guandi mountain by using survey method of circular sample of target tree. The result showed that with the thinning intensity increased, single tree’s volume and biomass were increased too, but the results were not significantly different from each other. Three different thinning intensities had significantly effect on Larix principis-rupprechtii stand’s total volume and biomass, the stand’s volume and biomass were significantly depleted by heavy thinning treatment. The growth of larch tree’s DBH was significantly promoted by moderate and heavy thinning treatments. Taking moderate thinning treatments could increase the total stand biomass, heavy thinning measures could be used actively in large diameter timber production.

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