| 应用微机建立坡地果树合理密植的优化模式 |
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| 引用本文： | 陈凯,江广恒.应用微机建立坡地果树合理密植的优化模式[J].中国农业科学,1990,23(6):55-61. |
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| 作者姓名： | 陈凯 江广恒 |
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| 作者单位： | 华中农业大学园艺系 南京农业大学 江苏农学院 江苏省植物研究所 |
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| 摘 要： | 根据光照几何学原理和太阳视运动规律、及坡度和坡向对果树叶幕遮光的影响，推导出坡地上果树叶幕对株间和行间的遮光系数计算公式，建立起适合在各种坡地上进行果树合理密植，确定最适宜的株距、行距和定植密度等优化模式，用微机系统计算的资料举例说明了应用要点，分析和讨论了坡地的受光特征和果树叶幕的遮光规律。可供在各种坡地上栽培果树，进行合理密植优化设计时参考。
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| 关 键 词： | 微型电子计算机 坡地 果树 合理密植 优化模式 遮光系数 |
OPTIMUM SEEKING MODELS ESTABLISHED BY MICROCOMPUTER FOR RATIONAL CLOSE PLANTING OF FRUIT TREES IN SLOPING FIELDS |
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| Chen Kai Zhang Wencai.OPTIMUM SEEKING MODELS ESTABLISHED BY MICROCOMPUTER FOR RATIONAL CLOSE PLANTING OF FRUIT TREES IN SLOPING FIELDS[J].Scientia Agricultura Sinica,1990,23(6):55-61. |
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| Authors: | Chen Kai Zhang Wencai |
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| Abstract: | In line with geometric principle of solar radiation and the law of its apparent movement, effects of gradient and slope orientation on the sunshine shading of a fruit tree canopy, the calculable formulae of the sunshine shading coefficient of the fruit tree canopy over adjacent trees in the same or another row, which are planted in sloping fields, are deduced in this paper. Then, some optimum seeking models are established for rational close planting of fruit trees,which are suitable for determining planting specifications at intervals of row space and space between plants and then planting density in various sloping fields. Some examples have also been given to illustrate how to apply the above established models to the practice of fruit production. The data calculated by a TRS-80-1 Model microcomputer system were used. Furthermore, some characteristics of the sunshine and its shading laws of a fruit tree canopy in sloping fields are analysed and discussed. It is suggested that the models used in this study can be for reference in carring out the government policy for planting fruit trees up on hill areas or down to beach regions, and making designs for rational close planting of different fruit trees in various sloping fields. |
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| Keywords: | Microcomputer Sloping fields Fruit trees Rational close planting Optimum seeking models Sunshine shading coefficient |
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