Structural path and decomposition analysis of aggregate embodied energy intensities in China, 2012-2017

Li, Wei; Xu, Duo; Li, Guomin; Su, Bin

doi:10.1016/j.jclepro.2020.124185

Cited by 34 publications

(3 citation statements)

References 57 publications

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“…where QA n Ŷ represents the copper consumption occurring in the nth production layer, which is derived in the starting industry because of the final demand on the final industry in each supply chain path. Learning from previous experience [45,52], we just trace SPA up to the third order in this paper, which accounts for 82% of the total copper consumption for the year 2020.…”

Section: Structural Path Analysismentioning

confidence: 99%

“…The SPA method is applied to trace how final demand drives substance emissions/resources consumption and to identify critical transmission sectors along the supply chain path. Previous studies have analyzed the SPA of embodied CO 2 emissions [40,41], embodied mercury emission [42][43][44], embodied energy consumption [45,46], and so on. Complex network theory, developed from graph theory and network theory, is a superior approach to exploring the structure of complex systems such as power networks, transportation networks, input-output networks, and so on, and then inquiring into the relationship between the network's structure and function [47,48].…”

Section: Introductionmentioning

confidence: 99%

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China’s Embodied Copper Flow from the Demand-Side and Production-Side Perspectives

Fang

Zhou

2023

Sustainability

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Copper is a critical mineral resource and plays a crucial role in social and economic development. In China, the world’s largest copper consumer, copper footprints and embodied copper transfers among sectors have not been studied sufficiently. Combing an environmentally extended input-output model and complex network method, this paper systematically analyzes China’s copper consumption embodied in the final demand and the production process. The research shows that (1) from the perspective of the final demand, the Construction sector is the largest driver of copper consumption, contributing 3.27 Mt in 2020, followed by the Manufacture of General Purpose Machinery sector (1.31 Mt). (2) Structural path analysis (SPA) shows that mainly the Construction sector drives copper consumption from the Production and Distribution of Electric Power and Heat Power sector, followed by the Manufacture of Non-metallic Mineral Products sector, and so on. Conversely, the Production and Distribution of Electric Power and Heat Power sector is the main initial sector in the supply chain, driven by the Construction sector, the Manufacture of Non-metallic Mineral Products sector, the Smelting and Processing of Metals sector, and so on. (3) From the perspective of production, the Transport, Storage, and Postal Services sector is an important transfer station transforming resources from the upstream sectors to the downstream sectors along with the transfers of embodied copper. The Production and Distribution of Electric Power and Heat Power sector is an important supplier for the downstream sectors. The Construction sector is an important consumer for the upstream sectors. The sectors including the Smelting and Processing of Metals sector, the Manufacture of Chemical Products sector and the Manufacture of Non-metallic Mineral Products sector function well as transformers, suppliers and consumers in the process of embodied copper transfers. (4) From the perspective of production, the embodied copper flow system can be divided into four groups that are closely linked. E & C community is the core member of the whole embodied copper flow network. C and S community is the main consumer of embodied copper resources in the network, exporting a great deal of embodied resources from other communities. Finally, some policy proposals on the rational utilization of copper resources are put forward.

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Section: Structural Path Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

China’s Embodied Copper Flow from the Demand-Side and Production-Side Perspectives

Fang

Zhou

2023

Sustainability

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“…SDA has been widely applied to identify the determinants behind changes in energy use [34][35][36] and carbon emissions over time [37,38]. For example, using the SDA approach, Feng et al [39] employed the SDA model to investigate the factors influencing US emissions in the period 1997-2013 and found that the decreases in emissions were largely attributed to the economic recession.…”

Section: Literature Reviewmentioning

confidence: 99%

Peak of SO2 Emissions Embodied in International Trade: Patterns, Drivers and Implications

et al. 2021

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International trade links countries consuming goods and services to those where products and related SO2 pollution are produced, thereby affecting national mitigation responsibilities. This study combined accounting and decomposition techniques to investigate the patterns and drivers of SO2 emissions embodied in international trade from 1995 to 2015 and quantified the contribution of each country or region on the production and consumption sides. The global embodied emissions increased at an accelerated rate before the global financial crisis and peaked at 51.3 Mt in 2008, followed by a fluctuating decline from 2008 to 2015. Spatially, the transfers of SO2 emissions tended to flow from developed countries to less developed ones, but the trend has weakened after the financial crisis. Our decomposition analysis suggests that the energy and production system transitions and the slowdown in international trade jointly accounted for the peak and decline in emissions. Our contribution analysis indicates that developing economies have contributed to decreased emissions due to their recent efforts in production technology upgrading, energy efficiency improvement and energy structure optimization. The influence of developed economies on emissions decreased due to their reduced dependency on imports. Targeted policy methods are provided from the production and consumption perspectives for developing and developed economies, respectively.

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Driving factors and key paths of metal consumption in China: Evidence from structural decomposition and structural path analysis

Dong,

Huang,

Chen

2024

Environ Dev Sustain

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Structural path and decomposition analysis of aggregate embodied energy intensities in China, 2012-2017

Cited by 34 publications

References 57 publications

China’s Embodied Copper Flow from the Demand-Side and Production-Side Perspectives

China’s Embodied Copper Flow from the Demand-Side and Production-Side Perspectives

Peak of SO2 Emissions Embodied in International Trade: Patterns, Drivers and Implications

Driving factors and key paths of metal consumption in China: Evidence from structural decomposition and structural path analysis

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