| 广西珍贵乡土速生树种任豆苗木生长节律研究 |
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| 引用本文： | 黄志玲,庞世龙,郝海坤,彭玉华,韦晓娟.广西珍贵乡土速生树种任豆苗木生长节律研究[J].西南林学院学报,2011(6):6-9. |
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| 作者姓名： | 黄志玲 庞世龙 郝海坤 彭玉华 韦晓娟 |
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| 作者单位： | 广西林业科学研究院; |
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| 基金项目： | 广西林业科学研究院基本科研业务费项目(林科200805号)、(林科200803号)资助 |
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| 摘 要： | 利用Logistic方程对任豆1年生播种苗的苗高、地径年生长节律进行拟合，并根据因素数列几何形状发展态势的接近程度，将苗木的生长量与影响苗木生长的气象因子空气温度、空气相对湿度、降水量和日照时数组成一个灰色系统，进行面积关联度分析。结果表明：Logistic方程拟合效果显著，年生长量表现出明显的“慢-快-慢-快-慢”的节律，采用有序样本聚类分析方法将苗木的生长过程划分为出苗期、生长前期、速生期和生长后期4个时期。关联度分析表明，空气温度对苗木的高生长影响最大，相对湿度影响最小；而日照时数对苗木的粗生长影响最大，相对湿度影响最小。
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| 关 键 词： | 任豆 Logistic方程 有序聚类法 年生长规律 灰色关联度 |
Study on Seedling Growth Rhythm of Zenia insignis as Valuable Fast-Growing Native Tree Species in Guangxi |
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| HUANG Zhi-ling,PANG Shi-long,HAO Hai-kun,PENG Yu-hua,WEI Xiao-juan.Study on Seedling Growth Rhythm of Zenia insignis as Valuable Fast-Growing Native Tree Species in Guangxi[J].Journal of Southwest Forestry College,2011(6):6-9. |
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| Authors: | HUANG Zhi-ling PANG Shi-long HAO Hai-kun PENG Yu-hua WEI Xiao-juan |
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| Institution: | HUANG Zhi-ling,PANG Shi-long,HAO Hai-kun,PENG Yu-hua,WEI Xiao-juan (Guangxi Forestry Academy,Nanning Guangxi 530002,China) |
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| Abstract: | A logistic equation was formulated to describe the height and basal diameter growth dynamics of the annual Zenia insignis seedlings from seed germination to the end of the first growing season.An area correlation analysis was done according to the closeness of the observed parameters to the dynamic curve on the gray system composed of the seedling growth increment and the meteorological factors including aerial temperature,relative humidity,rainfall and solar radiation hours that influence upon the seedling... |
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| Keywords: | Zenia insignis logistic equation sequential clustering algorithm annual growth rhythm gray correlation |
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