HU Hui,TIAN Na,WU Rendun,et al.Experimental Study and Comprehensive Evaluation of Light and Heat Characteristics of Different Cover Materials for Solar Greenhouses[J].HEILONGJIANG AGRICULTURAL SCIENCES,2026,(05):45-52.[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
- Title:
- Experimental Study and Comprehensive Evaluation of Light and Heat Characteristics of Different Cover Materials for Solar Greenhouses
- 文章编号:
- 8
- Keywords:
- covering material; solar greenhouse; light and heat characteristics; comprehensive evaluation
- 文献标志码:
- A
- 摘要:
- 为研究银川市日光温室闷棚覆盖材料对土壤表层微环境的调控效应,开展闷棚所用覆盖材料的光热性能试验研究,检测不同厚度的PE(聚乙烯)普通膜、PE(聚乙烯)无滴膜、PO(聚烯烃)膜、EVA(乙烯-醋酸乙烯共聚物)膜的透光率、保温性、红外透过率、紫外屏蔽效应,以及膜下光照强度、土壤温湿度等光热特性并进行综合评价。结果表明,从辐射透过性能方面分析,0.08 mmPE普通膜的紫外透过率最高、升温速度最快,但是随着时间的延长,膜内会产生大量水滴,使膜的透光率下降,0.12 mm EVA膜紫外透过率最低。从光照强度方面分析,0.10 mmEVA膜对光通量的捕获能力最强,其平均光照强度最大,为15 465.5 lx,0.10 mmPE无滴膜的平均光照强度最小,为7 467.7 lx。在保温性能方面,0.1 mmEVA膜闷棚之后土壤平均温度最高,为44.9 ℃,保温效果最好,PO膜次之,0.12 mmPE普通膜的土壤平均温度最低,为42.4 ℃。从薄膜的流滴性能方面分析,除了PE普通膜会产生大量的水滴之外,其余薄膜的流滴性均较好。从成本价格来看,PE膜价格最低,EVA膜最高,PO膜介于两者之间,其中不同厚度的价格以0.12,0.10和0.08 mm为顺序由高向低递减。综合评价结果来看,EVA膜在所有不同材质的闷棚材料里面表现效果最好,可作为高温闷棚首选材料,其次是PE普通膜,从厚度来看,EVA膜以0.10 mm为最佳,PE普通膜以0.12 mm为最佳,PO膜以0.10 mm为最佳,PE无滴膜效果最差,不建议作为闷棚覆盖材料。
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备注/Memo
收稿日期:2026-01-09
