| 楠木人工林生长规律的研究 |
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| 引用本文： | 杜娟,卢昌泰.楠木人工林生长规律的研究[J].浙江林业科技,2009,29(5). |
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| 作者姓名： | 杜娟 卢昌泰 |
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| 作者单位： | 四川农业大学都江堰分校,四川,都江堰,611830 |
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| 基金项目： | 四川省教育厅自然科学科研基金项目，四川农业大学都江堰分校科技基金项目 |
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| 摘 要： | 应用四川农业大学实习林场50～58年生的楠木人工林实验样地数据和树干解析资料,研究楠木人工林的生长规律,结果表明:14年生楠木人工林的树高连年生长量达到最大为0.63 m,20年生时树高的平均生长量达到最大为0.57 m,与树高的连年生长量曲线相交;16年生时胸径的连年生长量最大为0.64 cm,22年生时胸径平均生长量达到最大为0.56 cm,与胸径的连年生长量曲线相交;54年生时材积的平均生长量最大为0.008 9 m~3,与材积的连年生长量曲线相交,此年龄可认为是楠木的数量成熟年龄;楠木人工林的树高、胸径、材积与树龄之间的生长关系可用三次多项式y=a_0+a_1t+a_2t~2+a_3t~3(y表示树高、胸径、材积,t表示树龄,a_0、a_1、a_2、a_3分别为模拟曲线的系数)描述,其适合优度99%.
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| 关 键 词： | 楠木 人工林 树干解析 生长规律 生长模型 |
Study on Growth Regularity of Phoebe zhennan Plantation |
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| DU Juan,LU Chang-tai.Study on Growth Regularity of Phoebe zhennan Plantation[J].Journal of Zhejiang Forestry Science and Technology,2009,29(5). |
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| Authors: | DU Juan LU Chang-tai |
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| Abstract: | Study was carried out on growth regularity of 50 to 58-year Phoebe zhennan plantation in experimental forest farm of Sichuan Agricultural University with data collected from the sample plots and stem analysis. The result indicated that current annual height increment of 14-year P. Zhennan was 0.63 m, and that mean of 20-year was 0.57 m. Current annual DBH increment of 16-year P. Zhennan topped to 0.64 cm, and that mean of 22-year reached 0.56 cm. Mean annual volume increment of 54-year P. Zhennan was the largest of 0.008 87 m~3. Mature age of P. Zhennan is considered at 54 years. The growth model is (CUB) y=a_0+a_1t+a_2t~2+a_3t~3. |
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| Keywords: | Phoebe zherman plantation stem analysis growth regularity growth model |
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