| ‘青林’核桃容器播种苗年生长节律观察与模拟 |
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| 引用本文： | 韩传明,赵登超,王翠香,侯立群.‘青林’核桃容器播种苗年生长节律观察与模拟[J].山东师范大学学报(自然科学版),2012,27(2):122-124. |
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| 作者姓名： | 韩传明 赵登超 王翠香 侯立群 |
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| 作者单位： | 山东省林业科学研究院 250014 济南 |
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| 基金项目： | 国家林业公益性行业科研专项经费项目，中央财政林业科技推广示范跨区域重点推广示范项目，山东省农业良种工程项目 |
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| 摘 要： | 通过对‘青林’核桃容器播种育苗，研究‘青林’核桃容器苗生长规律，经定期观测和回归分析，模拟容器苗苗高、地径和生长时间的相关关系，并建立数学模型，结果表明：‘青林’核桃容器苗生长可划分为出苗期、速生生长期、缓慢生长期、生长后期和休眠期5个时期．茁高、地径的生长曲线呈“S”形，地径生长要滞后于苗高生长．苗高、地径与生长时间呈二次多项式函数关系，关系式分别为：Y=5E—0．5x。＋O．157x＋1．970，Y=-2E0．6x^2＋0．003x＋0．309，拟合模型能较准确地估算出核桃容器苗某一生长时间的苗高和地径．
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| 关 键 词： | 核桃 容器苗 生长量 数学模型 |
ANNUAL GROWTH RHYTHM OBSERVED AND SIMULATED OF QINGLIN WALNUTS CONTAINER SEEDLINGS |
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| Han Chuanming
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Zhao Dengchao
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Wang Cuixiang
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Hou Liqun.ANNUAL GROWTH RHYTHM OBSERVED AND SIMULATED OF QINGLIN WALNUTS CONTAINER SEEDLINGS[J].Journal of Shandong Normal University(Natural Science),2012,27(2):122-124. |
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| Authors: | Han Chuanming Zhao Dengchao Wang Cuixiang Hou Liqun |
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| Institution: | Han Chuanming Zhao Dengchao Wang Cuixiang Hou Liqun ( Shandong Academy of Forestry, 250014, Jinan, China ) |
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| Abstract: | Growth rhythm of container seedlings of Qinglin walnut cuhivar was studied by observations and regression analysis. The math models were established for the correlation between organs growth and stage of tree seedlings. The results indicated that its annual growth included five decades, which were seeding stage, fast growing stage, slow growing stage, late growing stage and dormant period. Height growth and diameter growth of walnut accorded with ＂S＂ curve. Ground diameter growth was lagged behind the height growth. Correlation among height and ground diameter growth, and growth stage was power function： Y = 5E -0. 5x^2 ＋ 0. 157x ＋ 1. 970, Y = -2E -O. 6x^2 ＋0. 003x ＋ O. 309. Height growth and diameter growth of walnut could be demonstrated very well by the math model. |
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| Keywords: | walnut container seedling growth math model |
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