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任 蕾, 徐端妙, 吴初平, 焦洁洁, 刘日林, 朱锦茹, 孙杰杰, 袁位高. 杉木人工林目标树经营技术参数的研究[J]. 浙江林业科技, 2019, 39(2): 1-6. DOI: 10.3969/j.issn.1001-3776.2019.02.001
引用本文: 任 蕾, 徐端妙, 吴初平, 焦洁洁, 刘日林, 朱锦茹, 孙杰杰, 袁位高. 杉木人工林目标树经营技术参数的研究[J]. 浙江林业科技, 2019, 39(2): 1-6. DOI: 10.3969/j.issn.1001-3776.2019.02.001
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REN Lei, XU Duan-miao, WU Chu-ping, JIAO Jie-jie, LIU Ri-lin, ZHU Jin-ru, SUN Jie-jie, YUAN Wei-gao. Study on Parameters of Target Tree in Chinese Fir Plantation[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(2): 1-6. DOI: 10.3969/j.issn.1001-3776.2019.02.001
Citation: REN Lei, XU Duan-miao, WU Chu-ping, JIAO Jie-jie, LIU Ri-lin, ZHU Jin-ru, SUN Jie-jie, YUAN Wei-gao. Study on Parameters of Target Tree in Chinese Fir Plantation[J]. Journal of Zhejiang Forestry Science and Technology, 2019, 39(2): 1-6. DOI: 10.3969/j.issn.1001-3776.2019.02.001
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杉木人工林目标树经营技术参数的研究

Study on Parameters of Target Tree in Chinese Fir Plantation

    摘要
  • 摘要: 对浙江省杉木Cunninghamia lanceolata主要分布区51个不同发育阶段杉木人工林典型样地调查，分析不同优势木高杉木人工林的径级结构，幵利用126株优势木数据，建立杉木人工林优势木的胸径、树高、冠幅之间关系，得出胸径与树高相关关系的最佳回归方程为：Y=0.361 8X+4.497 9，模型的拟合度R2=0.796 5（X表示胸径，Y表示树高）；胸径和冠幅的相关关系的最佳回归方程为：Y=0.137 9X+0.858 9，模型的拟合度R2=0.881 6（X表示胸径，Y表示冠幅）。通过对3株50年生杉木人工林大径级林分优势木的树干解析，研究大径级杉木人工林优势木的胸径、树高与材积的生长觃律，结果显示生长率都呈现逐年降低趋势，树高较为明显。树高、胸径、材积生长率最大值出现在10年生时分别为5.278 7%，15.069%，25.895%；而50年生时仅为0.273 3%，0.186 9%，0.921 7%。研究提出杉木人工林目标树经营的发育阶段划分、合理密度、目标树数量等关键经营技术参数，为杉木人工林的目标树经营提供理论依据。

     

    Abstract: Establishment of 51typical sample plots with different aged artificial plantations of Cunninghamia lanceolata was carried out in Zhejiang province.126 dominant trees and 3 sample trees were selected for determination of DBH, height and crown diameter.Analysis demonstrated that the best regression equation for relationship between DBH and height of dominants was Y=0.361 8X+4.497 9, R2=0.796 5.The best regression equation for correlation between DBH and crown diameter was Y=0.137 9X+0.858 9, R2=0.881 6.Stem analysis on 3 sample trees showed that the maximum tree height, DBH, and volume growth was at 10-year, respectively 5.278 7%, 15.069%, and 25.895%, and only 0.273 3%, 0.186 9%, and 0.921 7% at 50-years.Parameters such as the development stage division, reasonable density and the number of target trees of Chinese fir plantation were suggested.

     

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