| Title | Environmental and economic sustainability of key sectors in China's steel industry chain: An application of the Emergy Accounting approach |
|---|---|
| ID_Doc | 24786 |
| Authors | Liu, YX; Li, HJ; An, HZ; Santagata, R; Liu, XY; Ulgiati, S |
| Title | Environmental and economic sustainability of key sectors in China's steel industry chain: An application of the Emergy Accounting approach |
| Year | 2021 |
| Published | |
| Abstract | Increasing urbanization day-by-day requires new housing and transportation infrastructures. As a consequence, demand for steel - a basic material for buildings construction as well as for vehicles and railroads - would also increases. This study applies Emergy Accounting (EMA) to assess the China s steel industry environmental performance and to identify key application sectors. Subsequently, this study calculates emergy-based indicators capable to assess the present economic performance, environmental sustainability, and land resource appropriate utilization. Building on these indicators, changes of sustainability scenarios in key application sectors are also investigated, with special focus on increased use of recycled steel. The results show that the environmental impacts of steel use in downstream sectors, specially in the Housing and Vehicles Sectors, are significantly higher. Furthermore, the downstream sectors also have a very large requirement for embodied land. Additionally, the Emergy Benefit Ratio (EBR) shows non-negligible advantages to China derived from importing raw iron from abroad at international market prices. Finally, when the recycling rate of scrap steel increases, the performance of downstream sectors improves, with the Vehicle sector showing the most significant changes. Although the benefits of steel-based economy to society are clear, multidimensional sustainability concerns and international competition for primary resources necessitate a transition towards increased recycling and innovative materials within a strictly enforced "circular economy" policy. |
| https://doi.org/10.1016/j.ecolind.2021.108011 |
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