温室湿度动态预测模型建立与试验  

Dynamic Forecasting Model of Humidity in Greenhouse

作　　者：何芬[1] 马承伟[1] 张俊雄[2] 

机构地区：[1]中国农业大学农业部设施农业工程重点开放实验室,北京100083 [2]中国农业大学工学院,北京100083

出　　处：《农业机械学报》2009年第10期173-177,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十一五"国家科技支撑计划资助项目(2006BAK04A03);北京市教育委员会共建项目建设计划资助项目(XK100190650)

摘　　要：根据温室内水气收支平衡关系,建立了与室内外气象参数、温室结构、作物生长状况、土壤潮湿程度等有关条件下的温室湿度动态预测模型。同时定量描述了温室内作物蒸腾、土壤蒸发、壁面凝结、自然通风和机械通风等与湿度变化相关的各种物理过程。基于华北塑料连栋温室对所建模型进行了试验验证。结果表明:模型能较好预测温室内空气相对湿度值,预测值和实测值之间的均方根误差为5.9%。Based on the water vapor balance in greenhouse,a dynamic forecasting model of humidity directly as a function of the inside and outside climate,greenhouse structure,crop growth,and soil moisture was presented.Meanwhile,some physical processes correlative with the water vapor change such as crop transpiration,soil evaporation,covering material condensation,and natural and mechanical ventilation were quantitative analyzed.To validate the correctness of the model,an experiment was carried out in the plastic multi-span greenhouse in North China during winter. The inner relative humidity forecasted agreed well with the measured data, with the root mean square error of 5.9 %.

关 键 词：温室 湿度 水气平衡 预测模型 

分 类 号：S625.51[农业科学—园艺学]