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首页> 外文期刊>Acta Horticulturae >A system for measurement of transpiration, air movement and photosynthesis in the greenhouse.
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A system for measurement of transpiration, air movement and photosynthesis in the greenhouse.

机译：用于测量温室中蒸腾，空气运动和光合作用的系统。

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摘要

This paper describes various efforts to integrate evapotranspiration measurements carried out by inexpensive lysimeters with the information received by standard sensors to measure radiation, temperature, humidity and CO2 concentrations within a commercial greenhouse (GH). Such a system enables the calculation of air exchange, transpiration and photosynthetic activity of the entire GH canopy. Integrating the output of these instruments for instantaneous calculations necessitates resolving variations in time responses as well as effects of precision, drifts, temperature and hysteresis. These problems were solved by the adjustment and development of calibration, positioning and operating methods, setting of synchronization and averaging procedures. The reliability of the collected data was confirmed by logical distribution profiles of the calculated characteristic values along the day and by their spatial distribution within the GH. The information flow was slowed by the procedures mentioned above. However, this measuring system suffices for the validation and calibration of crop models and for use as input for GH controllers.
机译：本文介绍了将廉价的溶渗仪进行的蒸散量测量与标准传感器接收的信息进行集成以测量商业温室（GH）中的辐射，温度，湿度和CO2浓度的各种努力。这种系统可以计算整个GH冠层的空气交换，蒸腾和光合作用。集成这些仪器的输出以进行瞬时计算需要解决时间响应的变化以及精度，漂移，温度和滞后的影响。这些问题通过调整和开发校准，定位和操作方法，设置同步和求平均程序得以解决。收集的数据的可靠性通过计算得出的特征值在一天中的逻辑分布图以及它们在GH中的空间分布来确认。信息流由于上述过程而减慢了速度。但是，该测量系统足以验证和校准作物模型，并可用作GH控制器的输入。

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