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Recognition of Landscape Key Areas in a Coal Mine Area of a Semi-Arid Steppe in China: A Case Study of Yimin Open-Pit Coal Mine

by 1, 1,2, 1,2,* and 1
1
School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
2
Engineering Research Center of Mine Ecological Construction, Ministry of Education, Xuzhou 221116, China
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(6), 2239; https://doi.org/10.3390/su12062239
Received: 28 December 2019 / Revised: 4 March 2020 / Accepted: 10 March 2020 / Published: 13 March 2020
(This article belongs to the Section Environmental Sustainability and Applications)
The ecological integrity and biodiversity of steppes were destroyed under the long-term and high-intensity development of open-pit coal mines in China, causing desertification, steppe degradation, landscape function defect, and so on. As a source of species maintenance and dispersal, an ecological source is a key area for preservation in order to restore the ecological security pattern of the larger landscape. The purpose of this study was to establish a landscape key area recognition model to identify the landscape key areas (LKA) surrounding an open pit coalmine located in semi-arid steppe. This study takes the Yimin open pit mining area as a case study. We assessed Landsat 5 Thematic Mapper (TM) and Landsat 8 Operational Land Imager (OLI) remote sensing images taken during the peak season of vegetation growth from July to August in 1999, 2006, 2011, and 2017. From these images, we identified the main landscape types and vegetation coverage grades in order to identify the ecological land. Next, we applied the three indices of Importance of Patch Connectivity, Habitat Quality, and Ecosystem Service Value to calculate the comprehensive results that identify ecological land. Finally, the ecological land quality results of different years are superimposed and averaged, and then Very Important Patch (VIMP), Important Patch (IMP), and General Patch (GEP) areas were used for LKA extraction. Our results showed LKA to cover 177.35 km2, accounting for 20.01% of the total study area. The landscape types identified as LKA are primarily grassland (47.37%), wetland (40.27%), and shrubland (11.88%), indicating that landscape type correlates strongly with its value as a landscape key area. The proposed landscape key area recognition model could enrich the foundations for ecological planning and ecological security pattern construction in order to support ecological protection and restoration in semi-arid steppe areas affected by coal mining. View Full-Text
Keywords: Landscape Key Area; ecological Source; governance; semi-arid steppe; coal mine area Landscape Key Area; ecological Source; governance; semi-arid steppe; coal mine area
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MDPI and ACS Style

Wang, S.; Huang, J.; Yu, H.; Ji, C. Recognition of Landscape Key Areas in a Coal Mine Area of a Semi-Arid Steppe in China: A Case Study of Yimin Open-Pit Coal Mine. Sustainability 2020, 12, 2239. https://doi.org/10.3390/su12062239

AMA Style

Wang S, Huang J, Yu H, Ji C. Recognition of Landscape Key Areas in a Coal Mine Area of a Semi-Arid Steppe in China: A Case Study of Yimin Open-Pit Coal Mine. Sustainability. 2020; 12(6):2239. https://doi.org/10.3390/su12062239

Chicago/Turabian Style

Wang, Shougang, Jiu Huang, Haochen Yu, and Chuning Ji. 2020. "Recognition of Landscape Key Areas in a Coal Mine Area of a Semi-Arid Steppe in China: A Case Study of Yimin Open-Pit Coal Mine" Sustainability 12, no. 6: 2239. https://doi.org/10.3390/su12062239

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