黑龙江农业科学Issue(5)：45-52,8.DOI:10.11942/j.issn1002-2767.2026.05.0045
日光温室不同闷棚覆盖材料的光热特性研究及综合评价
Experimental Study and Comprehensive Evaluation of Light and Heat Characteristics of Different Cover Materials for Solar Greenhouses
摘要
Abstract
In order to study the regulatory effect of the covering materials used in the solar greenhouse shading cover on the surface micro-environment of the soil in Yinchuan City,an experiment on the light and heat properties of the covering materials was conducted.The transmittance,insulation property,infrared transmittance,ultraviolet shielding effect of different thicknesses of PE(polyethylene)ordinary film,PE(polyethylene)drip-free film,PO(polyolefin)film,and EVA(ethylene-vinyl acetate copolymer)film were tested,as well as the light and heat characteristics such as the light intensity under the film and the soil temperature and humidity.A comprehensive evaluation was carried out.The results showed that from the perspective of radiation transmittance,the ultraviolet transmittance of 0.08 mm PE ordinary film was the highest and the temperature rise speed was the fastest.However,with the extension of time,a large number of water droplets would be produced inside the film,causing a decrease in the transmittance,and the ultraviolet transmittance of 0.12 mm EVA film was the lowest.From the perspective of light intensity,0.10 mm EVA film had the strongest capture ability of light flux and the average light intensity was the highest,154 65.5 lx.0.10 mm PE drip-free film had the lowest average light intensity,7 467.7 lx.In terms of insulation property,the average soil temperature after the 0.1 mm EVA film shading was the highest,44.9 ℃,with the best insulation effect.PO film came second,and 0.12 mm PE ordinary film had the lowest average soil temperature,42.4 ℃.From the perspective of the droplet flow performance of the film,except for the PE ordinary film which would produce a large number of water droplets,the flow performance of the other films was good.From the price survey,the price of PE film was the lowest,EVA film was the highest,and PO film was in between.The prices decreased from high to low in the order of 0.12 mm,0.10 mm,and 0.08 mm thickness.The comprehensive evaluation results analysis showed that EVA film performed the best among all the different material shading cover materials and could be used as the preferred material for high-temperature shading.PE ordinary film came second,0.10 mm EVA film was the best in thickness,0.12 mm PE ordinary film was the best choice for PO film,and PE drip-free film had the worst effect.It is not recommended to be used as the shading cover material.关键词
覆盖材料/日光温室/光热特性/综合评价Key words
covering material/solar greenhouse/light and heat characteristics/comprehensive evaluation引用本文复制引用
胡慧,田娜,武仁敦,王巍巍,张晶晶,冉文婷,段海涛,赵智明..日光温室不同闷棚覆盖材料的光热特性研究及综合评价[J].黑龙江农业科学,2026,(5):45-52,8.基金项目
银川市青年科技人才培养项目(2025RC28) （2025RC28）
银川市科技创新团队计划项目(2023CXTD09) （2023CXTD09）
宁夏回族自治区第八批青年科技人才托举工程(202402). （202402）
