| Autor: |
Xiang, Hengxing1,2 (AUTHOR), Wang, Zongming1,3 (AUTHOR), Mao, Dehua1 (AUTHOR) maodehua@iga.ac.cn, Zhang, Jian4 (AUTHOR), Zhao, Dan5 (AUTHOR), Zeng, Yuan5 (AUTHOR), Wu, Bingfang5 (AUTHOR) |
| Předmět: |
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| Zdroj: |
Journal of Environmental Management. Jul2021, Vol. 290, pN.PAG-N.PAG. 1p. |
| Abstrakt: |
China's surface mining greatly supported the rapid socio-economic development; however, there was a scarcity in the systematic understanding of national changes in surface mining changes and associated ecosystem services (ESs) losses, which inevitably affected human well-being and limited sustainable ecosystem management and policy optimization. In this study, we quantified the areal changes in surface mining based on the ChinaCover database and performed further analysis of ES loss from expanded surface mining using multidimensional geospatial data from 1990 to 2015, including MODIS products, meteorological records, and statistical datasets. Our observations reveal that China's surface mining was estimated to be 4746 km2 in 2015 and that Inner Mongolia had the largest surface mining area (28%). Surface mining expanded remarkably from 1990 to 2015, with an increase by 2.7 times after 2000. In particular, Inner Mongolia, Shanxi, and Qinghai had the greatest increases in surface mining area. Rapid expansion of surface mining led to obvious declines in natural habitat area, water retention, net primary productivity, and grain production, and these ES losses showed apparent spatiotemporal variations. China has taken many measures to reclaim the abandoned surface mining sites. Given the rapid expansion of surface mining and related ES loss, China should continue to perform ecological restoration for its sustainability. • China's surface mining changes were firstly reported using remote sensing observation. • China's surface mining expanded by 2302 km2 from 1990 to 2015. • China's surface mining caused spatially varied losses in multiple ecosystem services. • Satellite observations reveal China's efforts to make the surface mining area green by 446 km2. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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