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溫室濕度動(dòng)態(tài)預(yù)測模型建立與試驗(yàn)
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Model of Humidity in Greenhouse
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    摘要:

    根據(jù)溫室內(nèi)水氣收支平衡關(guān)系,，建立了與室內(nèi)外氣象參數(shù),、溫室結(jié)構(gòu),、作物生長狀況,、土壤潮濕程度等有關(guān)條件下的溫室濕度動(dòng)態(tài)預(yù)測模型,。同時(shí)定量描述了溫室內(nèi)作物蒸騰,、土壤蒸發(fā),、壁面凝結(jié),、自然通風(fēng)和機(jī)械通風(fēng)等與濕度變化相關(guān)的各種物理過程,?；谌A北塑料連棟溫室對所建模型進(jìn)行了試驗(yàn)驗(yàn)證。結(jié)果表明：模型能較好預(yù)測溫室內(nèi)空氣相對濕度值,，預(yù)測值和實(shí)測值之間的均方根誤差為

    Abstract:

    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%. 

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何芬,馬承偉,張俊雄.溫室濕度動(dòng)態(tài)預(yù)測模型建立與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2009,40(10):173-177. Model of Humidity in Greenhouse[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(10):173-177.

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