摘要
为指导漂浮育苗温室精确除湿，通过对营养池中营养液的蒸发、培养基质的水分蒸发、作物的蒸腾作用等温室大棚水分蒸发的主要来源，在特征环境下的各种参数的适宜性进行了分析描述，构建了漂浮育苗条件下温室大棚水分蒸发模型，并人工模拟晴天和阴天的恒定光照实验验证了水汽蒸发速率的模型。结果表明：模型预测值与实际观测值之间的回归估计标准误差〈0．02kg／（m^2·h），相对误差〈8．9％，决定系数尺。在0．92～0．94之间。模型关于在漂浮育苗条件下温室大棚水分蒸发的参数选取和模型的准确预测性较好，对除湿有一定的指导意义。
For guiding precise dehumidification in floating this paper took the evaporation of the nutrient solution, the seedling greenhouse, based on Penman formula, evaporation of the medium moisture and the crop transpiration as main recourses of evaporation. The author analyzed and described the suitability of various parameters in particular environment, established the model of evaporation in floating seedling greenhouse. The experiments under artificial lighting condition of sunny and cloudy day showed that the value of model predict was in good agreement to the observed value. The regression estimation standard error was 〈0.02 kg/（m^2. h）, the relative error was 〈8.9% and the coefficient of determination R2 was between 0.92- 0.94. The accuracy of parameter selection of water model were both good, and could be a very good guide evaporation model of greenhouse and the prediction of for dehumidification.
出处
《中国农学通报》
2015年第17期262-266,共5页
Chinese Agricultural Science Bulletin
基金
湖南省教育厅重点项目"稻板田油菜移栽机械关键技术与装备研究"(13A038)
湖南省政府重大专项"双季稻区油菜早熟品种选育机械化生产技术研究与示范"(湘府阅[2014]35号)
关键词
漂浮育苗温室
水分蒸发
预测模型
floating seedling greenhouse
water evaporation
prediction mode
