| 影响杉木休眠芽数量的因素* |
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| 引用本文： | 刘令峰,叶镜中.影响杉木休眠芽数量的因素*[J].浙江农林大学学报,1995,12(2):128-132. |
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| 作者姓名： | 刘令峰 叶镜中 |
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| 作者单位： | 1.安徽省铜陵市环境保护局, 铜陵 244000;2.南京林业大学 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 杉木萌芽更新的繁殖基础是休眠芽, 其数量对更新成败关系极大。通过对立木树干基部取样测定, 基本查清影响杉木休眠芽数量变化的因素。研究结果表明, 衫木休眠芽的数量随林分立地条件而变化, 立地愈优良, 休眠芽数量愈少, 中心产区少于边缘产区; 在同一林分中, 大径级立木休眠芽的数量少于小径级的; 随林分年龄增加休眠芽数量增加, 至中龄林阶段时达最多, 以后随年龄增加逐渐减少, 影响杉木休眠芽数量的主导因于为林分年龄和立地条件。作者还对更新措施提出合理建议。
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| 关 键 词： | 杉木 萌芽更新 休眠芽 |
| 收稿时间： | 1994-10-03 |
Factors Influecning the Number of Dormant Buds in Cunninghamia lanceolata. |
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| Liu Lingfeng,Ye Jingzhong.Factors Influecning the Number of Dormant Buds in Cunninghamia lanceolata.[J].Journal of Zhejiang A&F University,1995,12(2):128-132. |
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| Authors: | Liu Lingfeng Ye Jingzhong |
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| Institution: | 1.Environment Protection Bureau of Tongling City, Tongling 244000, Anhui Province, PRC |
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| Abstract: | Doramnt buds, regenerative materials from sprouts of Cunninghamfa lanceolata, are numerically related to regeneration success or failure. Observation for the base parts of sample trees revealed the factors influencing the number of dormant buds of Chinese fir. The results suggested that the quantity of dormant buds changed with site quality, with the better the sites, the less the dormant buds, containing less dormant buds in trees from the centre of their distribution areas than those from their peripheral parts. In a same sand, more dormant buds developed in the large size-class trees than the samll ones. Dormant buds increased with the development of the sand, and culminated in the middle-age, then decreased with the age growth. Crop age and site quality were main factors influencung the number of dormant buds. The authors recommended some reasonable suggestions about regeneration practice. |
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