| 兴安落叶松天然优良林分改造为母树林的研究初报 |
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| 引用本文： | 朴楚炳,张万雄.兴安落叶松天然优良林分改造为母树林的研究初报[J].林业科技,1991,16(3):17-23. |
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| 作者姓名： | 朴楚炳 张万雄 |
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| 作者单位： | 黑龙江省林业研究所，黑龙江省林业研究所，黑龙江省林业研究所，黑龙江省林业研究所 |
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| 摘 要： | 该研究采用疏伐及其它促进结实的技术措施,探讨母树林合理密度和结构。结果表明,25～30年生兴安落叶松第1次巯伐合理密度为300株/ha;结实量比对照区提高6～14倍;出种率提高2.65％～3.16％;发芽率提高4.40％～9.86％;病虫危害率降低1.77％～5.77％。环状剥皮的结实率为90％;单株结实量提高60％。
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| 关 键 词： | 兴安落叶松 林分改造 母树林 |
THE PRELIMTNERY REPORT ON THE GOOD NATUREL DAHURIAN LARCH STAND TRANSFORMATION FOR SEED STAND |
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| Piao Chubing Zhang Wanxiong Lin Jun Ma Abin.THE PRELIMTNERY REPORT ON THE GOOD NATUREL DAHURIAN LARCH STAND TRANSFORMATION FOR SEED STAND[J].Forestry Science & Technology,1991,16(3):17-23. |
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| Authors: | Piao Chubing Zhang Wanxiong Lin Jun Ma Abin |
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| Institution: | Hcilongjiang Forestry Research Institute |
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| Abstract: | This paper refers the intermediate cutting and other technique measurements for fruit harvesting in order to understand the reasonable density and structure of seed stand. The result shows: the first intermediate cutting in 25-30 years old dahurian larch stand, the reasonable density is 300trec/ha, The seed quaunty is higher than the control 4-14 times; seed percentage increasing 2.65%-3.16%; germination increasing 4.40%-9.86%; pest percentage decreasing 1.77%-5.7%; fruit percentage of girdle is 90%; the carbonnihogea ratio per tree is over 28%. |
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| Keywords: | Dahurian larch nature good stsnd trnsformation seed stand intermediate cutting carbon-nitrogen ratio |
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