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首页> 外文期刊>農業気象 >Development of a supersonic pan-evaporimeter for dynamic analysis of evaporative demand in a greenhouse
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Development of a supersonic pan-evaporimeter for dynamic analysis of evaporative demand in a greenhouse

机译：开发用于动态分析温室中蒸发需求的超音速泛蒸发仪

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A supersonic pan-evaporimeter was developed for performing dynamic analysis of evaporative demand in a greenhouse. The pan-evaporimeter comprises two parts: a small-sized cylindrical container (a diameter of 27 cm, a height of 15 cm) filled with water and a supersonic water-level detector. The pan evaporation rate (E-pan) can be evaluated for an arbitrary time interval on the basis of the decrease in the water level due to evaporation from the pan-evaporimeter. The performance and validity of the pan-evaporimeter were examined by analyzing the characteristics of E-pan on an hourly basis and its relation with the solar radiation, air temperature and humidity, wind speed, in addition, the transpiration rate of a tomato plant (Tr) in a greenhouse. A positive linear relationship was clearly obtained between the hourly E-pan and the environmental elements, and then sensitivity of E-pan to the environmental elements was revealed. Furthermore, a good correlation was found between the E-pan and the Tr on hourly basis for one day. These results suggest that the developed pan-evaporimeter is a useful tool for analyzing the dynamics of evaporative demand and for estimating the transpiration rate in a greenhouse.
机译：开发了一种超声波泛式蒸发仪，用于对温室中的蒸发需求进行动态分析。锅式蒸发仪包括两部分：一个装有水的小型圆柱形容器（直径27厘米，高15厘米）和一个超声波水位检测器。锅内蒸发率（E-pan）可以在任意时间间隔内根据锅内蒸发仪蒸发引起的水位下降进行评估。通过每小时分析一次E-pan的特性及其与太阳辐射，空气温度和湿度，风速以及番茄植株的蒸腾速率之间的关系，检验了锅式蒸发仪的性能和有效性。 Tr）在温室中。每小时E-pan与环境元素之间清楚地获得了正线性关系，然后揭示了E-pan对环境元素的敏感性。此外，在一天的时间里，E-pan和Tr之间有很好的相关性。这些结果表明，开发的泛蒸发仪是用于分析蒸发需求动态和估算温室中蒸腾速率的有用工具。

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