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Urban greenhouse covering materials: Assessing environmental impacts and crop yields effects
Resources, Conservation and Recycling ( IF 11.2 ) Pub Date : 2022-07-18 , DOI: 10.1016/j.resconrec.2022.106527
Joan Muñoz-Liesa , Eva Cuerva , Felipe Parada , David Volk , Santiago Gassó-Domingo , Alejandro Josa , Thomas Nemecek

Solar radiation transmissivity in greenhouses is a key property largely determined by covering materials. This study compared tomato crop yields and their environmental performance of a polycarbonate rooftop greenhouse with alternative covering materials displaying higher solar transmissivity and lifetime performance. An integrated approach using experimental data with structural, energy modeling was used to model average lifetime crop productivities. At building functional unit (per m2·year), impacts varied between -29.0% and +24.0% compared to the current polycarbonate. Lifetime transmissivities improved up to 20.5% (4 mm-antireflective glass), leading to +46.6% of tomato yields (19.9 ± 2.2 kg/m2), and up to -33.9% of environmental impacts. Ethylene tetrafluoroethylene 60 μm-film resulted in 19.2 ± 2.3 kg tomatoes/m2 but improved environmental performance up to 41.7%. These results demonstrate the importance of employing integrated and life-cycle approaches to combine multiple trade-offs and dynamics within environmental assessments of greenhouse crops. The results are intended to contribute to improving greenhouse cultivation and sustainability.



中文翻译:

城市温室覆盖材料:评估环境影响和作物产量影响

温室中的太阳辐射透射率是主要由覆盖材料决定的关键特性。这项研究比较了聚碳酸酯屋顶温室的番茄作物产量及其环境性能,以及具有更高太阳能透射率和寿命性能的替代覆盖材料。使用具有结构、能量建模的实验数据的综合方法被用来模拟平均终生作物生产力。在建筑功能单元(每 m 2 ·年),与目前的聚碳酸酯相比,影响在 -29.0% 和 +24.0% 之间变化。终生透射率提高了 20.5%(4 毫米抗反射玻璃),番茄产量提高了 46.6%(19.9 ± 2.2 kg/m 2),以及高达 -33.9% 的环境影响。乙烯四氟乙烯 60 μm 薄膜产生 19.2 ± 2.3 kg 番茄/m 2,但环境性能提高了 41.7%。这些结果证明了在温室作物的环境评估中采用综合的生命周期方法来结合多种权衡和动态的重要性。结果旨在有助于改善温室栽培和可持续性。

更新日期:2022-07-19
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