Spatiotemporal assessment of the cumulative exergy demand of agricultural greenhouse production with industrial symbiosis

IF 7 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Farzaneh Rezaei , Vanessa Burg , Hamidreza Solgi , Stefanie Hellweg , Ramin Roshandel
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Abstract

While agricultural greenhouses facilitate out-of-season production, they face criticism due to their considerable resource consumption and consequential negative environmental repercussions. Resource use varies based on location, meteorological conditions, agricultural practices, and greenhouse technology. This study evaluates resource consumption of greenhouse systems by quantifying the cumulative exergy demand (CExD) of 1 kg of greenhouse tomatoes for every production month, considering geographical locations of projected greenhouses in Switzerland, cultivation practices (staggered and non-staggered), and seasonal weather variations throughout the year. Moreover, the effect of implementing Industrial Symbiosis (IS) opportunities on potential CExD reduction is explored. The findings indicate that in case of a planting and growing period from September to July instead of February to November, the annual average CExD of 1 kg tomato increases by 43 % in the Mittelland region (e.g. Bern). Furthermore, depending on cultivation periods, the CExD for a kilogram of tomatoes harvested in the same area in November could reach 14 times higher than in July, showing the temporal variability of resource consumption in greenhouse agriculture. Utilizing waste heat and CO2 from nearby potential suppliers can reduce the CExD by 60 % compared to conventional greenhouses heated by fossil fuels. Policymakers can use the presented outcomes to assess local policies in relation to resource efficiency, quantified as life cycle exergy in this paper.
具有工业共生关系的农业温室生产累计能源需求的时空评价
虽然农业大棚有助于反季节生产,但由于其大量的资源消耗和随之而来的负面环境影响,它们面临批评。资源利用因地点、气象条件、农业实践和温室技术而异。本研究通过量化每个生产月1公斤温室番茄的累积能源需求(CExD)来评估温室系统的资源消耗,考虑到瑞士预计温室的地理位置、栽培方法(交错和非交错)以及全年的季节性天气变化。此外,还探讨了实施工业共生(IS)机会对潜在的CExD减少的影响。研究结果表明,如果种植和生长期从9月到7月而不是2月到11月,mitteland地区(如伯尔尼)每年1公斤番茄的平均CExD增加43%。另外,根据栽培时期的不同,同一地区11月份收获的每公斤西红柿的CExD可能比7月份高出14倍,这表明温室农业资源消耗的时间变化。与使用化石燃料加热的传统温室相比,利用来自附近潜在供应商的废热和二氧化碳可以减少60%的温室气体排放。政策制定者可以使用提出的结果来评估与资源效率相关的地方政策,并在本文中量化为生命周期能源。
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来源期刊
Ecological Indicators
Ecological Indicators 环境科学-环境科学
CiteScore
11.80
自引率
8.70%
发文量
1163
审稿时长
78 days
期刊介绍: The ultimate aim of Ecological Indicators is to integrate the monitoring and assessment of ecological and environmental indicators with management practices. The journal provides a forum for the discussion of the applied scientific development and review of traditional indicator approaches as well as for theoretical, modelling and quantitative applications such as index development. Research into the following areas will be published. • All aspects of ecological and environmental indicators and indices. • New indicators, and new approaches and methods for indicator development, testing and use. • Development and modelling of indices, e.g. application of indicator suites across multiple scales and resources. • Analysis and research of resource, system- and scale-specific indicators. • Methods for integration of social and other valuation metrics for the production of scientifically rigorous and politically-relevant assessments using indicator-based monitoring and assessment programs. • How research indicators can be transformed into direct application for management purposes. • Broader assessment objectives and methods, e.g. biodiversity, biological integrity, and sustainability, through the use of indicators. • Resource-specific indicators such as landscape, agroecosystems, forests, wetlands, etc.
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