| 大叶栎苗期生长模型及分析 |
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| 引用本文： | 庞世龙,黄志玲,郝海坤,覃康平,莫耐波.大叶栎苗期生长模型及分析[J].林业科技开发,2011,25(5). |
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| 作者姓名： | 庞世龙 黄志玲 郝海坤 覃康平 莫耐波 |
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| 作者单位： | 1. 广西林业科学研究院,南宁,530001
2. 广西金秀瑶族自治县老山自然保护区 |
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| 基金项目： | 广西科技厅业务专项(编号:林科200805号) |
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| 摘 要： | 以大叶栎1年生播种苗为研究对象,利用Logistic曲线方程对其地径和苗高年生长节律进行拟合,决定系数(R2)均大于0.99,达到极显著相关,经卡方(x2)测验也表明方程具有非常高的可靠性,因此利用Logistic曲线方程对大叶栎苗期地径和苗高年生长节律进行拟合是可行的。依Logistic曲线方程上两个曲率最大的点准确地将大叶栎苗期年生长进程划分为:渐增期、速生期和缓增期,并对其不同生长时期的生长特点进行分析,以确定最佳育苗技术措施,为高效培育大叶栎优质苗木提供科学理论依据。
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| 关 键 词： | 大叶栎 播种苗 生长节律 Logistis曲线 |
Analysis on growth dynamics of Castanopsis fissa seedlings |
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| PANG Shi-long,HUANG Zhi-ling,HAO Hai-kun,TAN Kang-ping,MO Nai-bo.Analysis on growth dynamics of Castanopsis fissa seedlings[J].China Forestry Science and Technology,2011,25(5). |
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| Authors: | PANG Shi-long HUANG Zhi-ling HAO Hai-kun TAN Kang-ping MO Nai-bo |
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| Institution: | PANG Shi-long,HUANG Zhi-ling,HAO Hai-kun,TAN Kang-ping,MO Nai-bo Guangxi Forestry Academy,Nanning 530002,China |
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| Abstract: | Logistic equation was used to fit the annual growth dynamics of one year Castanopsis fissa seedlings.The results showed that the coefficient of determination(R2) was more than 0.99,indicating an extremely significant correlation.Chi-square(x2) tests also showed that the equation was highly reliable,According to the Logistic curve,three phases of accelerating growth,fast growth and slow growth were accurately divided during the one year growth of C.fissa seedlings.Integrating the growth traits of each phase,... |
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| Keywords: | Castanopsis fissa seedlings growth rhythm Logistic curve |
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