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园艺学报 ›› 2004, Vol. 31 ›› Issue (5): 607-612.

• 研究论文 • 上一篇    下一篇

日光温室气象要素及番茄单叶光合速率日变化模拟的研究

罗新兰1;李天来1*;姚运生2;刘子英3;高丽萍4   

  1. (1 沈阳农业大学园艺学院, 沈阳110161 ; 2 吉林农业科技学院, 吉林132400 ; 3 河北工程学院, 邯郸057150 ;4 沈阳观象台, 沈阳110168)
  • 收稿日期:2003-10-11 修回日期:2004-02-03 出版日期:2004-10-25 发布日期:2004-10-25
  • 通讯作者: 李天来

Simulation of Diurnal Variation of Weather Factors and Photosynthesis of Individual Tomato Leaves in Greenhouse

Luo Xinlan1;Li Tianlai1*; Yao Yunsheng2; Liu Ziying3; Gao Liping4   

  1. (1 College of Horticulture , Shenyang Agricultural University , Shenyang 110161 , China ; 2 Jilin A gricultural Science and Technology College , Jilin 132400 , China ; 3 Hebei University of Engineering , Handan 057150; 4Shenyang Observatory ,Shenyang 110168 , China)
  • Received:2003-10-11 Revised:2004-02-03 Online:2004-10-25 Published:2004-10-25
  • Contact: Li Tianlai

摘要: 对冬春季节晴天不放风、晴天放风、阴天不放风3 种情况下日光温室内光合有效辐射(PAR) 、温度、CO2浓度和番茄单叶光合速率日变化进行模拟, 并将其模拟结果与实测结果进行对比。结果表明: ①晴天不放风情况下, PAR、温度和CO2浓度日变化模拟较好, 上午番茄单叶光合速率的模拟效果好于下午; ②晴天放风情况下, 温度、CO2浓度日变化模拟较好, 但PAR 的日变化模拟效果一般, 可能与大气的透明系数或温室薄膜透光率的日变化有关, 但光合作用的模拟值与实测值比较一致; ③阴天不放风情况下, 温度和CO2浓度模拟值与实测值趋势一致, 而PAR 的模拟值与实测值存在较大偏差, 光合速率、PAR 的模拟值趋势同步, 进一步证明了阴天光强对光合速率的影响非常重要。

关键词: 日光温室, 番茄, 气象要素, 光合速率, 模拟模型

Abstract: The diurnal variation models of photosynthetically active radiation ( PAR) , air temperature ,CO2 concent ration and leaf photosynthesis of tomato in greenhouse was developed under three conditions , fine day and no ventilation , fine day and ventilation , cloudy day and no ventilation in winter and spring. The simulated values were compared with the observed values , and the result s showed : ①On fine day and no ventilation , PAR , air temperature and CO2 concent ration were well simulated , photosynthetic rate was well simulated in the morning. ②On fine day and ventilation , air temperature and CO2 concent ration were well simulated , but the simulation of PAR did not fit well with the observed values because of the effect of the diurnal variation of radiation t ransmission coefficient of air or transmittance of film , however , photosynthetic rate was well simulated. ③On cloudy day and no ventilation , the simulation of air temperature and CO2 concent ration
were slightly higher than the observed values. There were some differences between the simulated and observed values of PAR , but the tendency of the simulation values of photosynthetic rate and PAR were the same. The effect of PAR on photosynthetic rate on cloudy day was verified. The research results will be helpful for developing the model of tomato growth and guiding production in greenhouse.

Key words: Greenhouse, Tomato, Weather factors, Photosynthesis, Simulation model

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