The impact of coal mining subsidence on surface ecology involves the influence of several ecological elements such as water, soil, and vegetation, which is systematic and complex. Given the unclear understanding of the synergistic change patterns of the water–soil–vegetation ecological elements in the influence of coal mining in the west, …
The contaminated mining soil sample and the farmland soil sample were collected in Yaoposhan polymetallic mining area (24°52′47″, 113°07′50″) and the downstream village Xuya (24°51′47″, 113°08′15″), respectively. Due to the high variability of filed soils, multiple subsamples (>5) were collected in each sampling site and ...
The mining process produces a large amount of toxic and harmful heavy metals into the soil, which causes severe soil heavy metal pollution due to mining activities. At present, finding suitable methods to remediate heavy metal contaminated soils in mining areas is a hot issue and complex research area in environmental science. …
Compared to the background value, the soil in coal mine area had elevated concentrations of Cd, Cr, Ni and Zn. The maximum concentrations of Ni, Zn, Cd, and Pb were 62.08, 124.85, 0.7 and 57.34 mg ...
Exploitation of ore minerals (cinnabar, chalcopyrite, sphalerite) from the old mine in Vallalta (Belluno, NE Italy) has resulted in serious environmental impacts, …
The soil pH ranges from 6.5 to 7.5. Due to long-term mining, a large amount of slag enters the surface runoff and a large quantity of sediment enters the downstream area (Lin et al., 2014). Meanwhile, mining drainage causes the increase of the heavy metal concentrations in the surface soil and surrounding streams.
Received 05 June 2004; accepted 08 October 2004. In the process of opencast mining, several changes occur in physical, chemical, and microbiological properties of soil as a result of mining and storage. Inability to preserve topsoil is one of the basic hindrances to restoration of mined land. The acute problem in preserving mine soil is discussed.
The soil microbiome is not only valuable as the primary regulator of soil ecosystem services but also as a source of genetic resources for human healthcare and biotechnological applications 1.The ...
applying biochar and calcite to post nickel mining soil significantly increased. soil pH, available P, organic C, cation exchange capacity, growth of Mucuna. sp. and decreased exchangeable Al ...
The results showed that the physical characteristics of the soil on ex-Mn mining land from 5 villages in TTU, NTT are dominated by sand texture which results in low water content (3.39 - 9.46 % ...
The mining industry's operations contribute to deforestation, soil erosion, air and water pollution, water scarcity, and waste generation and disposal. This article …
Therefore, taking into account the characteristics of mine areas, in particular size and level of contamination, phytostabilization seems the most preferable technique, …
In this study, paired soil and wild plant samples collected from a mining area were investigated with the following aims: (1) to assess the soil pollution levels and potential ecological risk; (2) to compare the bioaccumulation ability of different plants; and (3) to investigate the phytoremediation ability and growth characteristics of native ...
The results showed that there was an increase in soil pH (>8.0) after mining, while vegetation restoration decreased the soil pH compared with native grassland; the soil organic matter and total nitrogen in the site restored with E. nutans increased by 48.8% and 25.17%, respectively, compared with the site restored with P. …
The decline in soil K without added K (Table 14.7) highlights the risk of rapid short-term mining of soil K with the farmer's current practice of using relatively high rates of N and P with little or no use of K. Long-term cropping with negative K balances has been associated with yield declines in the rice–wheat system in South Asia ...
Mining changes the geological structure, relief, water relations, local climate, landscape and disturbs the soil and destroys vegetation as well. Direct disturbance occurs relatively quickly; however, the zone of influence outside the direct mining area is also considerable. Direct degradation occurs on old mine workings, on overburden
Open-pit mining has caused extensive land destruction, including land abandonment and reduction in agricultural land, resulting in serious environmental problems. Ecological restoration and mine reclamation have become important components of the sustainable development strategies in Inner Mongolia, China. Therefore, the …
We constructed a mining soil restoration system combining plant, complex substrate and microbe. Sludge was added to reconstructed mine substrates (RMS) to accelerate the reclamation process. The ...
Corn cob silica (CCS), produced via a modification of the sol-gel method, can reduce heavy metal availability and stabilize contaminated soil on abandoned mining sites. Adding 5 % (w/w) CCS to mining site soil increased pH from 4.0 to 7.7, and cation exchange capacity increased from 94.5 to 100.3 cmol+/kg. Sequential extraction showed …
Soil heavy metal contamination caused by mining activities is a global issue. These heavy metals can be enriched in plants and animals through the food chain, and eventually transferred to the human system and threatening public health. Biochar, as an environmentally friendly soil remediation agent, can effectively immobilize heavy metals …
Mining activity causes the increase of soil loss and the reservoir storage reduction. •. Re-naturalize former mining sites leads to a strong reduction of sediment …
Soil samples were collected and examined at an illegal gold mining site in the far south of Egypt's Eastern Desert to determine the toxicity levels of eight heavy metals for pollution load index (PLI), I geo, and health (Au, Ag, As, Hg, Ni, Cr, Zn, and Pb). The methodology used in this study was categorized into fieldwork with restricted ...
What is Soil Sampling? Soil sampling in mineral exploration is the process of taking soil samples from an area to determine the soil's mineral makeup. In the mining industry, these soil samples are used to help determine whether there are sufficient concentrations of locatable minerals to justify continuing exploration.
Mineral exploitation affects soil quality especially in the ecologically fragile areas the Loess Plateau. The quality of soil can be improved by vegetation restoration. In order to reveal the changes of soil quality in the process of vegetation restoration in the reclaimed land of mining, we took Heidaigou mining area and the surrounding natural vegetation …
Because mining, dumping, and tailings can generate waste and radioactive consequences, society must develop methods for successfully treating mining waste from mine dumps, … Distribution and transport of contaminants in soil through mining processes and its environmental impact and health hazard assessment: A review of the …
2.1 Data collection and processing. Making use of the main literature databases, including CNKI in full Database, Wangfang Database and Web of Science, heavy metal concentrations of soil samples from 50 coal mining areas and 35 metal mining areas were collected from a host of studies related to soil heavy metal pollution …
Mining activities have serious environmental impacts, thus releasing heavy metals (HMs) such as cadmium (Cd), lead (Pb), chromium (Cr), zinc (Zn) and nickel (Ni) into the surrounding environment. The current paper investigated the impacts of mining activities of Pb-Zn sulfide on soil and medicinal plants. Hence, soil samples (n = 36) …
The resulting data set covers wide range of environmental conditions (pH, trace metals concentration, natural soils and soils affected by mining and ore processing).
In principle, for all post-mining uses the soil must be intensively prepared by man. The term soil reconstruction is used for the necessary soil handling. Different land-use types may result from the rehabilitation of open-cast mines. In Germany the use of the rehabilitated land amounts to 34% agriculture, 49% forest, 8% surface waters and 9% ...
Aimes Vegetation restoration in post-mining land is one of the most important remediation strategies for rebuilding the soil carbon (C) pool and improving soil quality. We aimed to provide a global perspective on the effects of vegetation restoration on soil properties. Methods By analyzing a database of 2799 observations extracted from …
Here, the linkage between heavy-metal speciation changes and CD imposition was investigated by incubating two types of doped carbon dots (nitrogen-doped and nitrogen–phosphorus-doped) into mine soils. Results showed that the application of nitrogen–phosphorus-doped carbon dots (N,P-CDs) was beneficial to improving soil …
The basic mining methods used should create prerequisites for selective excavation and deposition of valuable overburden layers. Hydraulic methods of extraction do not allow …
Antimony mining activities can result in serious contamination of soil by heavy metals, which represents a risk to human health. In this study, the contamination and sources of 14 heavy metals, and their risks to both ecosystem and public health from these metals at an antimony mining site in Guizhou Province in China were explored. The …
Mining is the process of extracting useful materials from the earth. Some examples of substances that are mined include coal, gold, or iron ore.Iron . ore is the material from which the metal iron is produced.. The process of mining dates back to prehistoric times.. Prehistoric people first mined flint, which was ideal for tools and …
The Shendong mining area (38°52′N − 39°41′N, 109°51′E − 110°46′E) is located in the overlapping zone between Ordos in Inner Mongolia and the northern part of Shaanxi (Fig. 1 a).It covers an area of 3437.7 km 2 and is situated on the eastern edge of the Loess Plateau and the transitional zone of the Mu Us Desert. The elevation ranges …
We explored the utility of soil survey databases for data mining, with the goals of identifying landscape-scale patterns in the abundance and size distribution of rock fragments (diameter D > 2 mm) and potential controls on grain size production. We focus on data from three regions: the Hawaiian Islands, and the Sierra Nevada and Cascade ...
Greenhouse Gas Emissions from Mining. It is also important to consider the impact of land use change in the context of greenhouse gas emissions. The destruction …
Compared with "rehabilitation", soil "restoration" is the ultimate goal of "rehabilitation" to reach the initial soil properties and eco-functionalities before disturbances. "Restoration" is usually used in managing degraded lands and forest soils, and not suitable and feasible for managing mine wastes such as tailings.