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Raw material consumption or total material consumption? Which indicator is better for evaluating material resource consumption and environmental pressure?
Environmental Monitoring and Assessment ( IF 2.9 ) Pub Date : 2020-05-13 , DOI: 10.1007/s10661-020-08343-w
Jan Kovanda 1
Affiliation  

The article presents a time series of raw material consumption (RMC) and total material consumption (TMC) indicators for the Czech Republic for 1990–2017 calculated with the use of hybrid input-output life cycle assessment approach (hybrid IO-LCA). While the RMC indicator has already been calculated with the use of various alternatives of input-output or hybrid approaches for some other countries, we are not aware of any published TMC time series calculated with the use of these methods. We briefly discuss the time development of the indicators’ material components. The core of the article lies in the assessment of the suitability of RMC and TMC indicators for (1) Quantification of material resource consumption of nations or groups of nations and (2) Evaluation of environmental pressure related to material resource consumption. We concluded that RMC is more appropriate for quantification of material resource consumption, as unused flows included in TMC are not consumed, but only displaced. Regarding the second purpose of the indicators, we found that trends of environmental pressure expressed by RMC and TMC are similar for the Czech Republic. We showed that RMC significantly underestimates total environmental pressure related to material resource consumption, which is particularly relevant for international comparison. Finally, we revealed that the material structure of the indicators differ and referring to an example of coal and construction and industrial minerals we argued that TMC is more appropriate for the evaluation of environmental pressure attributable to particular resources.

中文翻译:

原材料消耗还是总材料消耗?哪个指标更适合评估物质资源消耗和环境压力?

本文介绍了使用混合投入-产出生命周期评估方法(混合IO-LCA)计算的捷克共和国1990-2017年的原材料消耗量(RMC)和总材料消耗量(TMC)指标的时间序列。尽管在某些其他国家已经使用输入输出或混合方法的各种替代方法来计算RMC指标,但我们不知道使用这些方法计算出的任何已发布TMC时间序列。我们简要讨论了指标的主要组成部分的时间发展。本文的核心在于评估RMC和TMC指标在以下方面的适用性:(1)量化一个国家或一组国家的物质资源消耗;以及(2)评估与物质资源消耗相关的环境压力。我们得出的结论是,RMC更适合量化材料资源消耗,因为TMC中包含的未使用流量不会被消耗,而只会被置换。关于指标的第二个目的,我们发现RMC和TMC表示的环境压力趋势在捷克共和国是相似的。我们发现,RMC大大低估了与物质资源消耗相关的总环境压力,这在国际比较中尤为重要。最后,我们揭示了指标的物质结构不同,并以煤炭,建筑和工业矿物为例,我们认为TMC更适合评估可归因于特定资源的环境压力。因为TMC中包含的未使用流量不会被消耗,而只会被取代。关于指标的第二个目的,我们发现RMC和TMC表示的环境压力趋势在捷克共和国是相似的。我们发现,RMC大大低估了与物质资源消耗相关的总环境压力,这在国际比较中尤为重要。最后,我们揭示了指标的物质结构不同,并以煤炭,建筑和工业矿物为例,我们认为TMC更适合评估可归因于特定资源的环境压力。因为TMC中包含的未使用流量不会被消耗,而只会被取代。关于指标的第二个目的,我们发现RMC和TMC表示的环境压力趋势在捷克共和国是相似的。我们发现,RMC大大低估了与物质资源消耗相关的总环境压力,这在国际比较中尤其重要。最后,我们揭示了指标的物质结构不同,并以煤炭,建筑和工业矿产为例,我们认为TMC更适合评估可归因于特定资源的环境压力。我们发现,在捷克共和国,RMC和TMC表示的环境压力趋势相似。我们发现,RMC大大低估了与物质资源消耗相关的总环境压力,这在国际比较中尤其重要。最后,我们揭示了指标的物质结构不同,并以煤炭,建筑和工业矿物为例,我们认为TMC更适合评估可归因于特定资源的环境压力。我们发现,在捷克共和国,RMC和TMC表示的环境压力趋势相似。我们发现,RMC大大低估了与物质资源消耗相关的总环境压力,这在国际比较中尤其重要。最后,我们揭示了指标的物质结构不同,并以煤炭,建筑和工业矿物为例,我们认为TMC更适合评估可归因于特定资源的环境压力。
更新日期:2020-05-13
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