| 日本落叶松人工林心腐率的调查 |
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| 引用本文： | 贾明,李永生,李宏,马颖,姜海,王永祥.日本落叶松人工林心腐率的调查[J].防护林科技,2013(12):32-33. |
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| 作者姓名： | 贾明 李永生 李宏 马颖 姜海 王永祥 |
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| 作者单位： | [1]凤城市通远堡林场,辽宁丹东118100 [2]丹东市林业局,辽宁丹东118000 |
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| 摘 要： | 通过对40年生以上的日本落叶松（Larix kaempferi）人工林心腐的调查研究，结果表明，日本落叶松随林龄的增长，根部腐朽会越来越重，40年时腐蚀率达39％，50年达69％，60年达84％。心腐对日本落叶松的生长影响很大，树高和胸径生长量明显下降，同时也严重地影响林木的质量和产值。所以，对林龄较大的日本落叶松应及时主伐更新，避免因心腐过重给经济带来巨大的损失。
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| 关 键 词： | 日本落叶松 年龄 心腐率 |
Investigation on Heart Rot Rate of Larix kaempferi |
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| Jia Ming,Li Yongsheng,Li Hong,Ma Ying,Jiang Hai,Wang Yongxiang.Investigation on Heart Rot Rate of Larix kaempferi[J].Protection Forest Science and Technology,2013(12):32-33. |
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| Authors: | Jia Ming Li Yongsheng Li Hong Ma Ying Jiang Hai Wang Yongxiang |
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| Institution: | 1. Tongyuanpu Forest Farm, Fengcheng City, Dandong 118100, China 2. Bureau of Forestry in Dandong City,Dandong 1180130 ,China) |
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| Abstract: | Heart rot of Larix kaempferi above 40-year-old were investigated .Result shows that ：root rot of Larix kaempferi will become increasingly serious with the increase of forest age ;heart rot rate of 40 ,50 ＆ 60-year-old Larix kaempferi are 39% ,69% ,84% ,respectively ;influence of heart rot on the growth of Larix kaempferi is great ;growth of tree height ＆ diameter decrease significantly ;the quality ＆ value of trees were seriously affected . Therefore ,final felling regeneration should be conducted on Larix kaempferi with more tree rings to avoid huge los-ses by too sever heart rot to the economy . |
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| Keywords: | Larix kaempferi age heart rot rate |
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