枣麦间作系统中光能在作物群体内分布的数值模拟

应用生态学报 ›› 2003, Vol. ›› Issue (6): 945-948.

枣麦间作系统中光能在作物群体内分布的数值模拟

张继祥¹, 魏钦平¹, 刘克长¹, 陆佩玲²

1. 山东农业大学园艺学院, 泰安 271018;
2. 北京林业大学, 北京 100083

收稿日期:2001-02-09 修回日期:2001-06-12 出版日期:2003-06-15
通讯作者: 张继祥,男,1961年生,在职博士生,教授,从事果树生理生态方面的研究,发表论文30余篇.Tel:0538-8242550,E-mail:jxzh@sdau.edu.cn.
基金资助:
山东省自然科学基金项目(973052);中国科学院禹城综合试验站资助项目

Digital modeling of light distribution within the crop canopy in jujube-wheat interplanting system

ZHANG Jixiang¹, WEI Qinping¹, LIU Kechang¹, LU Peiling²

1. Department of Horticulture, Shandong Agricultural University, Taian 271018, China;
2. Beijing Forestry University, Beijing 100083, China

Received:2001-02-09 Revised:2001-06-12 Online:2003-06-15

摘要/Abstract

摘要： 应用农业气象学原理和方法,依据实测资料,分析了枣麦间作系统中枣树带遮荫宽度及阴影内的相对光照度的时空变化规律,以及遮荫区、非遮荫区内小麦群体的光能垂直分布特点;应用数理方法,模拟了遮荫区及非遮荫区内小麦群体光能垂直分布曲线.结果表明,南北走向的枣树带每天早、晚其遮荫区域较宽,相对光照度较大;中午前后,遮荫区域宽度较窄,相对光照度较小.尽管遮荫区与非遮荫区内小麦群体的光能垂直分布有明显的差异,但二者间都符合高斯曲线的递减规律.

Abstract: On the basis of field observation and with the principles and methods of agricultural meteorology,the daily variations of the shadow width of jujube tree belts and the relative light intensity were analyzed in the jujube—wheat interplanting system,and the characteristics of vertical distribution of the light within the wheat canopy inside and outside the shadow were studied. The sunshine vertical distribution curves in the wheat canopy inside and outside the shadow were simulated by mathematical methods. The results showed that the shadow area of the south north planting jujube tree belts was fairly wider,but the relative light illuminance was larger in early morning and late afternoon than at about noon.Although the sunshine vertical distribution in the wheat canopy inside and outside the shadow was obviously different,they both observed the decreasing law for Gauss Curve.

中图分类号:

Q948
S16

张继祥, 魏钦平, 刘克长, 陆佩玲. 枣麦间作系统中光能在作物群体内分布的数值模拟[J]. 应用生态学报, 2003, (6): 945-948.

ZHANG Jixiang, WEI Qinping, LIU Kechang, LU Peiling. Digital modeling of light distribution within the crop canopy in jujube-wheat interplanting system[J]. Chinese Journal of Applied Ecology, 2003, (6): 945-948.

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