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首页> 外文期刊>Agrociencia >Sensitivity analysis of a dynamic growth model for greenhouse-grown lettuce (Lactuca sativa L.).
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Sensitivity analysis of a dynamic growth model for greenhouse-grown lettuce (Lactuca sativa L.).

机译：温室种植的生菜（Lactuca sativa L.）动态生长模型的敏感性分析。

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摘要

A sensitivity analysis of the NICOLET B3 dynamic model of lettuce growth was conducted. Data collected from a lettuce (cv. Kagranner Sommer) growth experiment in a greenhouse in Chapingo, Mexico, were used. The model input variables were temperature, CO2 and photosynthetically active radiation sampled every 15 minutes. Non-correlated independent data (white noise) for the input variables were also used. The sensitivity analysis of the NICOLET B3 model showed that 3 parameters, i.e. maintenance respiration coefficient, radiation extinction coefficient through the canopy, and uninhibited growth rate coefficient of the closed canopy, had a major effect on the model's performance since the state variables, i.e. carbon content in vacuoles and carbon content in the structure, had the sensitivity function with the highest values. Similar performance was observed for the model output variable dry weight.
机译：对生菜生长的NICOLET B3动态模型进行了敏感性分析。使用了在墨西哥查平戈的温室中从生菜（cv。Kagranner Sommer）生长实验中收集的数据。模型输入变量是每15分钟采样一次的温度，CO2和光合有效辐射。还使用了输入变量的非相关独立数据（白噪声）。 NICOLET B3模型的敏感性分析表明，维持状态呼吸系数，通过冠层的辐射消光系数和封闭冠层的无抑制增长率系数这三个参数对模型的性能产生了重要影响，因为状态变量即碳液泡中的含量和结构中的碳含量具有最高的灵敏度函数。对于模型输出可变干重，观察到类似的性能。

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