Environmental Assessment of an Urban Vertical Hydroponic Farming System in Sweden
Environmental Assessment of an Urban Vertical Hydroponic Farming System in Sweden
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DOI：
10.3390/su11154124
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发表时间：
2019-08-01
期刊：
影响因子：
3.9
通讯作者：
Molin, Elvira
中科院分区：
文献类型：
--
作者：
Martin, Michael;Molin, Elvira
随着人口的增长和全球粮食市场的动态变化，重要的是要找到更接近城市环境的更具弹性的粮食生产方法的解决方案。最近，垂直农业系统已成为城市农业的潜在解决方案。然而，尽管有越来越多的文献审查城市和垂直农业系统的潜力，只有有限的研究审查了这些系统的可持续性。本文的目的是了解垂直水培农业在城市环境中的环境影响，适用于案例研究垂直水培农场在斯德哥尔摩，瑞典。这是通过使用生命周期的角度评估环境绩效来评估环境影响，并与潜在的改进方案进行比较。结果表明，垂直水培系统的重要方面包括生长介质，盆，电力需求，原材料的运输和产品交付。通过用纸盆取代塑料盆，可以大幅减少温室气体排放、酸化影响和非生物资源消耗。用椰壳纤维代替传统的园艺土壤作为生长介质也可以大大减少对环境的影响。然而，为了进一步减少该系统的影响，将需要采取更具资源效率的步骤，以改善电力需求的影响，并有可能发展更多的共生交换，以利用城市废物和副产品。
With an expanding population and changing dynamics in global food markets, it is important to find solutions for more resilient food production methods closer to urban environments. Recently, vertical farming systems have emerged as a potential solution for urban farming. However, although there is an increasing body of literature reviewing the potential of urban and vertical farming systems, only a limited number of studies have reviewed the sustainability of these systems. The aim of this article was to understand the environmental impacts of vertical hydroponic farming in urban environments applied to a case study vertical hydroponic farm in Stockholm, Sweden. This was carried out by evaluating environmental performance using a life cycle perspective to assess the environmental impacts and comparing to potential scenarios for improvement options. The results suggest that important aspects for the vertical hydroponic system include the growing medium, pots, electricity demand, the transportation of raw materials and product deliveries. By replacing plastic pots with paper pots, large reductions in GHG emissions, acidification impacts, and abiotic resource depletion are possible. Replacing conventional gardening soil as the growing medium with coir also leads to large environmental impact reductions. However, in order to further reduce the impacts from the system, more resource-efficient steps will be needed to improve impacts from electricity demand, and there is potential to develop more symbiotic exchanges to employ urban wastes and by-products.