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在温室内研究了香蕉树蒸腾量和小气候的关系,用5种方法计算了温室内的参考作物腾发量,用20 cm蒸发皿测定温室内的水面蒸发力,并和测定的香蕉树蒸腾量进行对比。试验结果显示香蕉树蒸腾量和蒸发皿水面蒸发量的回归系数(R2)最高,为0.94,而和5种公式计算的参考作物腾发量的回归系数为0.47~0.60,以蒸发皿水面蒸发量计算温室内的作物蒸腾量要优于以参考作物腾发量计算作物蒸腾量的方法。温室内香蕉树的蒸腾量和20 cm蒸发皿蒸发量线性相关,可以此计算温室内作物的蒸腾量。
The relationship between the banana tree transpiration and the microclimate was studied in the greenhouse, the reference crop evapotranspiration in the greenhouse was calculated by five methods, and the evapotranspiration in the greenhouse was measured with a 20 cm evaporating dish. The measured evapotranspiration comparing. The results showed that the regression coefficient (R2) of banana tree evapotranspiration and evapotranspiration was the highest (0.94), while the regression coefficients of reference crop evapotranspiration calculated by five formulas were 0.47-0.60. The evapotranspiration Calculating the crop transpiration in the greenhouse is better than calculating the crop transpiration using the reference crop evapotranspiration. The transpiration of banana trees in the greenhouse is related to the evapotranspiration of 20 cm, which can be used to calculate the transpiration of crops in the greenhouse.