Exploring Land-Cover Types and Their Changes in the Open-Pit Mining Area of Ordos City Using Sentinel-2 Imagery

Linye Zhu, Yonggui Zhang (), Kewen Chen, Qiang Liu and Wenbin Sun
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Linye Zhu: Inner Mongolia Research Institute, China University of Mining and Technology (Beijing), Ordos 017004, China
Yonggui Zhang: North Weijiamao Power and Coal Co., Ltd., Ordos 017000, China
Kewen Chen: College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Qiang Liu: Inner Mongolia North Union Power Energy Development Co., Hohhot 010000, China
Wenbin Sun: Inner Mongolia Research Institute, China University of Mining and Technology (Beijing), Ordos 017004, China

Sustainability, 2023, vol. 15, issue 19, 1-14

Abstract: Exploring the land-cover types and their changes in open-pit mining areas is of great significance to the ecological restoration of Ordos City and its sustainable development. Therefore, in this study, the temporal features, spectral features, and the derived features from intra-annual images combined with the random forest method were used to determine the land-cover types and their changes in the open-pit mining area of Ordos City in 2019 and 2022. The results show that the land-cover types in the open-pit mining area of Ordos City are construction land, bare land, water, vegetation, and coal. The main land-cover types in the western open-pit mining area of Ordos City are different from those in the eastern open-pit mining area. The main land-cover type changes in the open-pit mining area from 2019 to 2022 are the conversion of bare land to vegetation and the conversion of coal to bare land, as well as the conversion of vegetation to bare land. This study provides the possibility of dynamic monitoring for the realization of green mine planning in Ordos City.

Keywords: land-cover types; land-cover changes; change transfer matrix; Ordos City (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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