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opencast coal mining china
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Dynamic Changes in Carbon Sequestration from …
Opencast coal mining causes serious damage to the natural landscape, resulting in the depletion of the carbon sequestration capacity in the mining activity. There are few studies on the variation of …
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Changes in soil properties in the soil profile after mining and
The research was conducted in the opencast coal mine of Loess Plateau–Pingshuo, which is located in Shuozhou, northern Shanxi province of China (Fig. 1).Owing to lying in the border regions of Shanxi, Shaanxi and Inner Mongolia provinces in the eastern Loess Plateau, this district is also called the "black triangle".
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Life cycle assessment of opencast coal mine production: a …
China has the largest coal production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast coal mine production has increased significantly in China. Opencast coal mining can lead to a large number of environmental problems, includi …
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Reclamation patterns vary carbon sequestration by trees
The study area is located at the south dump of Pingshuo opencast coal mine, northern Shanxi Province with geographic coordinates of 112°10′–113°30′E, 39°23′–39°37′N (Fig.1) (Zhao et al., 2015a), which is the largest opencast mine in China.It has an arid to semi-arid continental monsoon climate and a fragile ecological environment.
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Using multi-fractal and joint multi-fractal methods to …
The output of opencast coal-mining in China has increased rapidly since 2000. The soil and other materials generated by opencast mining activities need to be dumped in a selected location, which occupies large amount of land and form a huge artificially stacked dump. The topsoil at the mining site is excavated, transported and …
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Ten largest coal mines in the world
The opencast mine complex is operated by South Eastern Coalfields Limited, a subsidiary of Coal India, Korba, Chhattisgarh, India. ... It is the second largest coal mine in China. Articles and resources References. ↑ 1.0 1.1 1.2 Laporan Kinerja Tahun 2020, Energi Dan Sumberdaya, 2020; ↑ 2.0 2.1 "EIA table 9 major US coal mines 2018" …
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Ecological response of land use change in a large opencast coal mine
DOI: 10.1016/j.resourpol.2023.103551 Corpus ID: 258235015; Ecological response of land use change in a large opencast coal mine area of China @article{Zhang2023EcologicalRO, title={Ecological response of land use change in a large opencast coal mine area of China}, author={Min Zhang and Jinman Wang and Yu …
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Land Degradation & Development | Environmental & Soil …
The properties of sediment particles are crucial research areas for understanding soil erosion on dump slopes. In this study, the slope of the southern dump of the ATB opencast coal mine in the Pingshuo mining area in Shanxi Province, China, was selected to conduct microtopographical shaping and artificial rainfall simulation …
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Assessing the ecological impacts of opencast coal mining in …
In fact, opencast mining is the most directly disturbed way which deteriorate land ecosystem in nature (Guan et al., 2017, Bruno Rocha Martins et al., 2020). …
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Retrieving zinc concentrations in topsoil with reflectance …
& He, Y. Heavy metals concentrations of soils near the large opencast coal mine pits in China. Chemosphere. 244, 125360 (2019). Article ADS PubMed CAS Google Scholar Gabriel ...
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Ecological response of land use change in a large opencast coal mine
The area of damaged land is 0.22 hm 2 per 10000 t coal mining in China's opencast coal mine, which leads to the direct excavation of 0.12 hm 2 land area, the dump occupies 0.10 hm 2 land area, and the dump area accounts for about 50% of the total area of damaged land. The change process of land use in the region reveals the internal …
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Ecological response of land use change in a large opencast …
The area of the study area is 517.48 km 2, which mainly includes the three major coal mines of Antaibao, Anjialing, and East Opencast mining area. As the largest …
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Bioconversion of coal to methane by microbial communities …
However, compared with underground coal seam environments, little is known about the potential of coal bioconversion to methane from an opencast coal mine by indigenous microbial communities cultured from soils covering and surrounding this mine. In China, more than 400 opencast coal mines are in operation with a coal production of …
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Reclamation promotes the succession of the soil and …
Pingshuo opencast coal mine is the largest opencast coal mine in China. It is located in the north of Shanxi Province, east of the Loess Plateau with the coordinate of 112°10′–113°30′E, 39°23′–39°37′N (Fig. 1). It has an arid to semi-arid continental monsoon climate with fragile ecological environment.
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Soil nutrient variations among different land use types after
The Pingshuo mine is the largest open-pit mine in China and comprises three major coal mines: the Antaibao, Anjialing and East opencast mines. The mine spans Pinglu District and Shuocheng District, with geographical coordinates of 112°10′-113°30′E and 39°23′-39°37′N ( Fig. 1 ).
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Remote Sensing | Free Full-Text | Using a Two-Stage Scheme …
Toxic metals have attracted great concern worldwide due to their toxicity and slow decomposition. Although metal concentrations can be accurately obtained with chemical methods, it is difficult to map metal distributions on a large scale due to their inherently low efficiency and high cost. Moreover, chemical analysis methods easily lead …
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Hydrogeochemical Mechanisms and Hydraulic Connection of …
The identification of water sources and hydraulic connectivity in different aquifers within coal mines is crucial for effective groundwater management and has important implications for mine safety, water resource conservation, and regional ecological protection. The Dongming opencast coal mine in Hailar City, Inner Mongolia, China, is …
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Ecological Restoration of Abandoned Mine Land in China
Institute of Land Reclamation and Ecological Restoration, China University of Mining and Technology (Beijing), Beijing 100083, China Abstract: Mining activities produced a lot of abandoned mine land.
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How to optimize dust pollution control in opencast coal …
Introduction. Coal is the key energy source for industrial development. For a long time, China's economic and social development has had a strong demand for coal, and the coal industry has developed rapidly [1, 2]pared with other types of mines, opencast mines have higher safety levels, higher coal recovery rates, larger production …
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The Topsoil Quality Variation Under Different Reclamation …
As the lack of topsoil resources, and the shortage of water resources, the ecological environment is extremely fragile in the pasture opencast coal mine area of China. Therefore, that the way to achieve the most efficient use of the limited topsoil resources in pasture area, plays a crucial role in land reclamation and ecological …
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Linkage between soil nutrient and microbial
The research was conducted in Pingshuo opencast mine, the largest one in China situated in Shuozhou City, northwest of Shanxi Province with a fragile ecological environment. The geographic coordinates of this region range from 112°10′ to 113°30′E and from 39°23′ to 39°37′N ( Fig. 1 ) ( Zhao et al., 2015 ).
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Investigating the population structure and spatial
Request PDF | Investigating the population structure and spatial pattern of restored forests in an opencast coal mine, China | To understand the underlying ecological process of vegetation ...
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Remote Sensing | Free Full-Text | Monitoring Extractive …
Mining developments in alpine coal mining areas result in slow or rapid ground subsidence, which can lead to melting and collapse of permafrost. This paper integrated unmanned aerial vehicle (UAV) images and satellite-based SAR interferometry images to monitor intensive surface mining subsidence during reclamation. Digital …
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Retrieving soil heavy metals concentrations based on …
5 China Power Construction Group Northwest Survey, Design and Research Institute Co, Ltd, Xi'an, 710065, China. ... The present study collected 110 topsoil samples from an Opencast Coal Mine of Ordos, Inner Mongolia, China. Then, the spectra and soil heavy metals concentrations of samples were measured under laboratory conditions. ...
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Characteristics of labile organic carbon fractions in reclaimed mine …
Opencast mining, the most common coal mining technique worldwide (Ussiri and Lal, 2005), accounts for 15% of coal output in China (Huang et al., 2015). Opencast mining naturally results in intensive disturbance to terrestrial ecosystems (Ussiri and …
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Changes in soil properties in the soil profile after mining and
The research was conducted in the opencast coal mine of Loess Plateau–Pingshuo, which is located in Shuozhou, northern Shanxi province of China (Fig. 1). Owing to lying in the border regions of Shanxi, Shaanxi and Inner Mongolia provinces in the eastern Loess Plateau, this district is also called the "black triangle".
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Measurement and prediction of land use conflict in an opencast mining
Opencast coal mining can result in a large-scale land destruction (Wang et al., 2018a). Compared with the underground coal mine, the opencast coal mine has a greater scale and degree of destruction to land (Wang et al., 2015). In China, opencast coal mining of per 10,000 tons directly destroy 0.24 ha land.
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Spatial-temporal evolutions of groundwater environment …
The results showed that (1) the mining activities of the open-pit coal changed the original reduction environment into the oxidizing environment in the mining area. The pyrite and sulfur-bearing coal in the stratum oxidized, produced acid and triggered a series of subsequent reactions, resulting in the decrease in the pH value of the ...
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Sustainability | Free Full-Text | Effects of Vegetation
There are five refuse dumps in the Heidagou opencast coal mine, at which vegetation construction started in 1995, 1998, 2003, 2005 and 2014, respectively. ... Cao, Y.; Zhang, G. Changes in soil properties in the soil profile after mining and reclamation in an opencast coal mine on the Loess Plateau, China. Ecol. Eng. 2017, 98, 228–239 ...
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Detecting the effects of opencast mining on ecosystem …
Study area. The study area is located in Dongsheng District, Ordos City, Inner Mongolia Autonomous Region, China, in Junger and Yijinholo Banners, where the Dongsheng and Junger coal fields are distributed, and the mining method is mainly opencast mining (Fig. 1).From 2002 to 2012, rising coal prices in China drove the large …
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Effects of vegetation and physicochemical properties on …
1. Introduction. Coal plays a leading role in the energy structure of China and contributes greatly to China's economic development (Wang et al., 2006).However, coal mining activities, especially opencast mining, have caused serious damage to the environment, including the elimination of vegetation, permanent topographic changes, …