| 大豆晴天群体光合作用农业气象数值模拟 |
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| 引用本文： | 刘建栋,于强,等.大豆晴天群体光合作用农业气象数值模拟[J].应用气象学报,2001,12(1):14-20. |
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| 作者姓名： | 刘建栋 于强 |
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| 作者单位： | 1.中国气象科学研究院, 北京 100081 |
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| 基金项目： | 本文得到国家自然科学基金重大项目(49899270),中国科学院“百人计划”项目及中国气象科学研究院博士、博士后科研启动基金资助. |
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| 摘 要： | 运用农业气象、气象学等知识建立了一个晴天大豆群体光合农业气象数值模式.模式考虑了大豆叶片空间结构特征及本身生物学特征, 积分达到了瞬时时间尺度, 可以较准确地模拟出群体光合日变化过程, 平均模拟误差在8.7%左右, 并较好地反应了大豆群体光合午休过程.利用该模式进行数值分析, 给出了CO2、辐射及温度对群体光合午休影响的一些规律, 从而为作物超高产攻关提供了一定的理论指导.
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| 关 键 词： | 大豆 群体光合 农业气象 数值模拟 |
| 收稿时间： | 1999-10-11 |
| 修稿时间： | 1999年10月11 |
An Agrometeorlogical Model of Photosynthesis in Soybean Canopy |
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| Liu Jiandong,Yu Qiang,Wu Naiyuan.An Agrometeorlogical Model of Photosynthesis in Soybean Canopy[J].Quarterly Journal of Applied Meteorology,2001,12(1):14-20. |
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| Authors: | Liu Jiandong Yu Qiang Wu Naiyuan |
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| Institution: | 1.Chinese Academy of Meteorological Sciences, Beijing 1000812.Institute of Geographic Scionces and Natural Resources, CAS, Beijing 1001013.Research Center of A grometeorology, Shandong Province, Tai'an 271000 |
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| Abstract: | A numerical model for simulating the photosynthesis of soybean canopy was established. The model includes sub models for simulating diurnal variations of radiation, temperature and CO 2 density as well as the plant physiological sub model which includes photosynthesis and respiration of soybean leaves. The results show that the mean error is about 8.7% when it is used for simulating the diurnal variation of photosynthesis in soybean canopy, and the model can simulate the process of midday depression of photosynthesis in soybean canopy accurately. Influence of the single factor on canopy photosynthesis was given by numerical analysis using the model, which provides a theoretical basis for raising the yield of soybean in Huanghuaihai Region. |
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| Keywords: | Soybean canopy Midday depression of photosynthesis Agrometeorology Numerical simulati |
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