| Title |
Quantifying the spatiotemporal evolution of the in-use steel stock in countries along the Belt and Road |
| ID_Doc |
10726 |
| Authors |
Zhong, L; Liu, XS; Yang, P; Zhong, XL; Zeng, XR; Zou, CC; Xu, XX |
| Title |
Quantifying the spatiotemporal evolution of the in-use steel stock in countries along the Belt and Road |
| Year |
2022 |
| Published |
|
| Abstract |
Urban development has advanced the accumulation of steel resources from the natural environment to urban structures, thereby aggravating the deterioration of the natural environment and increasing concern for the circular economy. Accurately understanding the spatiotemporal evolution of urban steel stocks is necessary to better maintain sustainable socioeconomic development. This paper constructs the consistency and continuity of multisource nighttime light (NTL) data and the results of modelled in-use steel stock (IUSS) in the Belt and Road (B&R) areas at a 1 km resolution. The multiscale IUSS spatiotemporal evolution in the B&R areas was quantified using geographic information analysis methods. The results revealed that the evolution of IUSS in the southern and northern parts of the B&R has significant differences. From 1992 to 2004, the evolutionary state of the IUSS showed drastic changes, while an overall trend of balanced development was maintained from 2004 to 2019. High-intensity IUSS is mainly concentrated in China, Russia, and India, and wealth level is the primary factor driving the development of IUSS. Combining the results of the development state analysis and spatial correlation analysis shows that central India and central and western China are potential hotspot areas for the flow of steel resources in the future. The results of this study can help develop differentiated and refined management strategies for the flow of anthropogenic steel resources. |
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