中国农业大学学报2025，Vol.30Issue(3)：197-205,9.DOI:10.11841/j.issn.1007-4333.2025.03.18
柔性保温日光温室光环境分布特征及改善措施
Distribution characteristics and improvement measures of light environment of flexible thermal insulation solar greenhouse
摘要
Abstract
Because of the problem that there is a weak light area on the north side of the flexible thermal insulation solar greenhouse due to its unique structure and material,the reasons for the low light on the north side of the flexible thermal insulation solar greenhouse were analyzed by theoretical analysis and experimental testing methods under different weather conditions in spring.The light environment of the flexible thermal insulation solar greenhouse was improved by increasing the haze of the film covering film in front of the greenhouse and adding reflective film on the back wall.The results showed that:1)The DLIs at 2.5 and 1.5 m from the north wall of the flexible thermal insulation solar greenhouse were only 18.78％-21.42％and 12.93％-14.11％of the south measurement point(11.5 m).The distribution was extremely uneven in the north and south,and the weak light phenomenon on the north side was prominent,which was mainly due to the shading of the roof insulation.2)The haze of the greenhouse film was increased from 24.29％to 43.94％,and the DLIs at 2.5 and 1.5m from the north wall were increased from 27.63％to 70.43％and 23.02％to 35.38％at the south measurement point(11.5 m),respectively,indicating that increasing the haze of the film could alleviate the problem of weak light on the north side of the greenhouse to a certain extent.It increased the amount of light on the north side;and reduced the difference between north and south illumination.3)The light environment of the north wall at 2.5 and 1.5m away from the north wall was further improved after the addition of reflective film,and the DLIs was increased from 47.42％to 77.95％and 33.74％to 70.82％of the south measuring point(11.5 m),respectively.In conclusion,the combination of the scattered light film and the north wall reflective film can basically solve the problem of weak light on the north side of the flexible thermal insulation solar greenhouse.Both the scattered light film and the reflective film have a significant brightening effect on the north side of the flexible thermal insulation solar greenhouse under sunny conditions.关键词
柔性保温日光温室/散射光/雾度/薄膜/反光膜Key words
flexible insulated solar greenhouse/scattered light/haze/film/reflective film分类
农业科技引用本文复制引用
张志远,朱寅宾,郭宇博,李鹏,程杰宇,赵淑梅,孙桂芝,魏珉..柔性保温日光温室光环境分布特征及改善措施[J].中国农业大学学报,2025,30(3):197-205,9.基金项目
国家自然科学基金项目(U20A2020) （U20A2020）
现代农业产业技术体系北京市创新团队项目(BAIC01-2024) （BAIC01-2024）
