| 杨树林带生长阶段与林木分级的研究 |
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| 引用本文： | 朱教君,姜凤岐.杨树林带生长阶段与林木分级的研究[J].应用生态学报,1996,7(1):11-14. |
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| 作者姓名： | 朱教君 姜凤岐 |
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| 作者单位： | 中国科学院沈阳应用生态研究所 |
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| 基金项目： | 国家自然科学基金,国家“八五”科技攻关资助 |
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| 摘 要： | 依据林带的特殊性，结合树木生长发育和林带结构变化规律，将林带生长阶段划分为幼龄期、中龄期（速生期）和防护成熟期３个时期；采用径级离散度、防护成熟龄、更新龄等量化指标，以杨树林带为例，将３个生长时期定量化；同时依据林带树木对防护效益的贡献和树木的生长状况，将林带树木划分为４级；并给出各生长发育时期的相应的经营措施．
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| 关 键 词： | 林带，发育阶段，杨树，分级 |
Growth stage and classification of poplar shelterbelt. |
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| Zhu Jiaojun and Jiang Fengqi.Growth stage and classification of poplar shelterbelt.[J].Chinese Journal of Applied Ecology,1996,7(1):11-14. |
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| Authors: | Zhu Jiaojun and Jiang Fengqi |
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| Abstract: | Based on the characteristics of shelterbelt and the patterns of tree growth and shelterbelt structure, the growth of poplar shelterbelt can be divided into three stages,i.e.,initial,middle(or fast growing)and protective maturing stages.Their quantitative indexes are determined by diameter discrete degree,protective maturity age and regeneration age.Corresponding management measures for each growing stage are given. |
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| Keywords: | Poplar Shelterbelts Growth stage Classification |
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