DOI: 10.1016/j.scitotenv.2020.136813
论文题名: A comprehensive planetary boundary-based method for the nitrogen cycle in life cycle assessment: Development and application to a tomato production case study
作者: Bjørn A. ; Sim S. ; King H. ; Margni M. ; Henderson A.D. ; Payen S. ; Bulle C.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 715 语种: 英语
英文关键词: Absolute environmental sustainability assessment
; Biogeochemical flows
; Environmental state indicators
; Safe operating space
; Sharing principles
; Thresholds
Scopus关键词: Decision support systems
; Fruits
; Nitrogen fertilizers
; Soils
; Sustainable development
; Systems engineering
; Water
; Biogeochemical
; Environmental state
; Environmental sustainability
; Safe operating space
; Sharing principles
; Thresholds
; Life cycle
; biogeochemical cycle
; environmental assessment
; life cycle analysis
; nitrogen cycle
; soil nitrogen
; sustainability
; threshold
; vegetable
; agricultural land
; air pollution
; analytic method
; Article
; boundary layer
; climate change
; coastal waters
; fertilizer application
; food industry
; freshwater environment
; life cycle assessment
; nitrogen cycle
; planetary boundary
; priority journal
; reference value
; sea pollution
; soil change
; soil pollution
; soil property
; tomato
; water pollution
; Lycopersicon esculentum
英文摘要: Existing methods that apply the planetary boundary for the nitrogen cycle in life cycle assessment are spatially generic and use an indicator with limited environmental relevance. Here, we develop a spatially resolved method that can quantify the impact of nitrogen emissions to air, soil, freshwater or coastal water on “safe operating space” (SOS) for natural soil, freshwater and coastal water. The method can be used to identify potential “planetary boundary hotspots” in the life cycle of products and to inform appropriate interventions. The method is based on a coupling of existing environmental models and the identification of threshold and reference values in natural soil, freshwater and coastal water. The method is demonstrated for a case study on nitrogen emissions from open-field tomato production in 27 farming areas based on data for 199 farms in the year 2014. Nitrogen emissions were modelled from farm-level data on fertilizer application, fuel consumption and climate- and soil conditions. Two sharing principles, “status quo” and “gross value added”, were tested for the assignment of SOS to 1 t of tomatoes. The coupling of models and identification of threshold and reference values resulted in spatially resolved characterization factors applicable to any nitrogen emission and estimations of SOS for each environmental compartment. In the case study, tomato production was found to range from not transgressing to transgressing its assigned SOS in each of the 27 farming areas, depending on the receiving compartment and sharing principle. A high nitrogen use efficiency scenario had the potential to reverse transgressions of assigned SOS for up to three farming locations. Despite of several sources of uncertainty, the developed method may be used in decision-support by stakeholders, ranging from individual producers to global governance institutions. To avoid sub-optimization, it should be applied with methods covering the other planetary boundaries. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158311
Appears in Collections: 气候变化与战略
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作者单位: CIRAIG, Polytechnique Montréal, 3333 Chemin Queen-Mary, Montréal, QC, Canada; Unilever Safety and Environmental Assurance Centre, Unilever R&D, Colworth Science Park, Sharnbrook, MK44 1LQ, United Kingdom; University of Texas School of Public Health, Austin, TX, United States; Noblis, San Antonio, TX, United States; CIRAD, UPR systèmes de pérennes, Montpellier, 34398, France; CIRAIG, ESG UQÀM, Montreal, QC, Canada
Recommended Citation:
Bjørn A.,Sim S.,King H.,et al. A comprehensive planetary boundary-based method for the nitrogen cycle in life cycle assessment: Development and application to a tomato production case study[J]. Science of the Total Environment,2020-01-01,715