Land cover transformation in two post-mining landscapes subjected to different ages of reclamation since dumping of spoils

Antwi, Effah Kwabena; Boakye-Danquah, John; Asabere, Stephen Boahen; Takeuchi, Kazuhiko; Wiegleb, Gerhard

doi:10.1186/2193-1801-3-702

Cited by 22 publications

(9 citation statements)

References 23 publications

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“…Pit lakes can have a large surface area and could be hundreds of metres in depth, as in the lignite mines of Germany (Hildmann and Wünsche 1996;Antwi et al 2014) or Spain (Aréchaga et al 2011;Mijares Coto 2013) generated by forced flooding from a nearby river system (mine rehabilitation by flooding, Fitzgerald and Watkins 1997). They can also be small mining pit lakes with shallow water (Redondo-Vega et al 2017, with depths between 0.70 and 15 m. These pit lakes are abandoned without any type of subsequent management after the mining ends and are the object of our study.…”

Section: Introductionmentioning

confidence: 99%

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

et al. 2021

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Mining activity introduces severe changes in landscapes and, subsequently, in land uses. One of the most singular changes is the existence of pit lakes, which occur in active and, more frequently, abandoned mines. Pit lakes are produced by water table interception when open-pit mines deepen. Their characteristics are highly variable, depending on the type of mine, the environment or the climate. In León province there is a long tradition of coal mining that dates back to the nineteenth century, and hundreds of open pits from the 1970s to 2018 have been opened, producing permanent landscape changes. This work analyses the main parameters, including morphological measurements, depth and pH values obtained from aerial photos and field work, of 76 coal pit lakes more than 30 m in length. The vast majority of these pit lakes were unknown until now and were not included in inventories or maps. The data obtained provide baseline knowledge that will allow, in the future, potential uses (storage of water for various uses, recreational use, wildlife habitat, and geological heritage sites) for these pit lakes and establish their importance as a new geoecological environment.

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Section: Introductionmentioning

confidence: 99%

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

et al. 2021

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“…Pit lakes can have a large surface area and could be hundreds of metres in depth, as in the lignite mines of Germany (Hildmann and Wünsche 1996; Antwi et al 2014) or Spain (Aréchaga et al 2011; Mijares Coto 2013) generated by forced ooding from a nearby river system (mine rehabilitation by ooding, Fitzgerald and Watkins 1997). They can also be small mining pit lakes with shallow water (Redondo- Vega et al 2017;, with depths between 0.70 and 15 m. These pit lakes are abandoned without any type of subsequent management after the mining ends and are the object of our study.…”

Section: Introductionmentioning

confidence: 99%

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

Vega

Melón-Nava

Peña-Pérez

et al. 2021

Preprint

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Mining activity introduces severe changes in landscapes and, subsequently, in land uses. One of the most singular changes is the existence of pit lakes, which occur in active and, more frequently, abandoned mines. Pit lakes are produced by water table interception when open-pit mines deepen. Their characteristics are highly variable, depending on the type of mine, the environment or the climate. In León province there is a long tradition of coal mining that dates back to the 19th century, and hundreds of open pits from the 1970s to 2018 have been opened, producing permanent landscape changes. This work analyses the main parameters, including morphological measurements, depth and pH values obtained from aerial photos and field work, of 76 coal pit lakes more than 30 m in length. The vast majority of these pit lakes were unknown until now and were not included in inventories or maps. The data obtained provide baseline knowledge that will allow, in the future, potential uses (storage of water for various uses, recreational use, wildlife habitat, and geological heritage sites) for these pit lakes and establish their importance as a new geoecological environment.

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“…Ecosystems in a mining area are complex and shaped by interactions between the natural environment and the social environment dominated by the local development and utilization of mineral resources [1,2]. Long-term, large-scale and high-intensity mineral resource development activities have destroyed the geological conditions of native deposits, giving rise to surface subsidence, soil pollution and plant destruction as well as changes in hydrothermal structures and damage to the ecological environment, rendering ecosystems extremely vulnerable [3][4][5][6]. The average rate of land collapse per 10,000 tons of coal mining in China has been estimated at 0.20-0.33 hm 2 [7].…”

Section: Introductionmentioning

confidence: 99%

Assessing the ecological regime and spatial spillover effects of a reclaimed mining subsided lake: A case study of the Pan'an Lake wetland in Xuzhou

Peng-cheng

et al. 2020

PLoS ONE

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In the North China Plain, coal mining subsided lakes are surface water bodies that form after the conclusion of coal mining. In China, mining subsided lakes are often transformed into artificial wetland parks for ecological restoration. While many studies have focused on evaluating coal mining subsidence lake ecosystem service value and water pollution, little attention has been paid to changes in ecological regimes and ecological spillover effects before and after the reclamation of mining areas. This paper examines the Pan'an Lake artificial wetland in Jiawang District, Xuzhou, as a case study. Changes in the ecological regime of the mining subsidence area before and after land reclamation and corresponding spatial spillover effect on land prices are assessed based on remote sensing, GIS raster calculations and geostatistical methods. The results show that the ecosystem service value and ecological storage capacity changed significantly after the mining subsided lake was transformed into an artificial wetland and the wetland ecosystem has been developing well with significantly positive spillover effects on surrounding land prices. From 2008 to 2017, service functions of the artificial wetland ecosystem of Pan'an Lake increased by 81.95%, and the system's ecological storage capacity increased from RMB 6,754 yuan/hm 2 in 2008 to RMB 12,289 yuan/hm 2 in 2017. The average impact of the Pan'an Lake artificial wetland on the spillover effects of surrounding residential land prices was measured at RMB 195.18 yuan/ m 2 , and the total spillover value of planned residential land in the study area was measured at RMB 805,422,100 yuan. The present study can serve as a useful guide for evaluating the economic feasibility of land reclamation planning and ecological restoration in mining subsidence areas.

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Land cover transformation in two post-mining landscapes subjected to different ages of reclamation since dumping of spoils

Cited by 22 publications

References 23 publications

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

Coal pit lakes in abandoned mining areas in León (NW Spain): characteristics and geoecological significance

Assessing the ecological regime and spatial spillover effects of a reclaimed mining subsided lake: A case study of the Pan'an Lake wetland in Xuzhou

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