| 大兴安岭地区低质林改造后苗木生长状况 |
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| 引用本文： | 李勇,宋启亮,董希斌,李芝茹.大兴安岭地区低质林改造后苗木生长状况[J].东北林业大学学报,2012,40(8):108-111. |
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| 作者姓名： | 李勇 宋启亮 董希斌 李芝茹 |
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| 作者单位： | 1. 大兴安岭地区营林局,加格达奇,165000
2. 东北林业大学 |
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| 基金项目： | 林业公益性行业科研专项，黑龙江省重大科技攻关项目 |
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| 摘 要： | 2009年对大兴安岭地区的阔叶混交次生林及白桦萌生低质林进行不同宽度效应带和不同面积林窗改造,分别种植西伯利亚红松、落叶松和樟子松,2011年8月调查实验区内每株苗木的成活和生长状况,研究不同改造方式苗木的成活率及生长率。结果表明:在阔叶混交次生林改造中,西伯利亚红松成活率效应带改造高于林窗改造,而生长率林窗改造高于效应带改造;樟子松成活率林窗改造高于效应带改造,生长率效应带改造高于林窗改造;落叶松改造与樟子松表现相同。在白桦萌生林改造中,西伯利亚红松成活率与生长率效应带改造均高于林窗改造;樟子松成活率和生长率林窗改造均高于效应带改造;落叶松成活率和生长率林窗改造均高于效应带改造。综合分析两类型低质林改造,不论是效应带改造还是林窗改造,对阔叶混交次生林改造的目的树种成活率和生长率均大于白桦萌生林改造。
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| 关 键 词： | 低质林林分 改造方式 成活率 生长率 大兴安岭 |
Seedling Growth in Lower-Quality Forests After Transformation in Greater Xing' an Mountains |
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| Li Yong
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Song Qiliang
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Dong Xibin
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Li Zhiru.Seedling Growth in Lower-Quality Forests After Transformation in Greater Xing' an Mountains[J].Journal of Northeast Forestry University,2012,40(8):108-111. |
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| Authors: | Li Yong Song Qiliang Dong Xibin Li Zhiru |
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| Institution: | (Northeast Forestry University) |
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| Abstract: | Broad-leaved mixed secondary forests and birch coppice low-quality stands in Greater Xing’an Mountains in 2009 were transformed by different widths of effect belt or areas of forest gaps.Pinus koraiensis,Larix gmelinii and Pinus sylvestris var.mongolica were planted in the transformed stands respectively.The survival rate and growth rate of the seedlings in different transformed stands were surveyed in August 2011.In the broad-leaved mixed secondary forests after transformation,the survival rate of P.koraiensis for the transformation mode of effect belt was higher than that for the forest gap,while the growth rate for the transformation mode of forest gap was higher than that for the effect belt;the survival rate of P.sylvestris var.mongolica for the forest gap transformation was higher than that for the effect belt transformation,while the growth rate for the effect belt transformation was higher than that for the forest gap transformation;L.gmelinii performed the same as P.sylvestris var.mongolica.In the birch coppice after transformation,the survival rate and growth rate of P.koraiensis for the effect belt transformation were both higher than those for the forest gap transformation;while the survival rates and growth rates of L.gmelinii and P.sylvestris var.mongolica for the forest gap transformation were both higher than those for the effect belt transformation.The survival rate and growth rate of the target tree species in the broad-leaved mixed secondary forest,whether transformed by forest gap or effect belt,were higher than those in the transformed birch coppice. |
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| Keywords: | Low-quality stands Transformation modes Survival rates Growth rates Greater Xing’an mountains |
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