Environmental and human health risks of arsenic in gold mining areas in the eastern Amazon. Environ. Pollut., 265 (2020), p. 114969, 10.1016/j.envpol.2020.114969. Google Scholar. ... water and sediments in a semi-arid …
As a result of extensive gold and silver mining in the Mojave Desert, southern California, mine wastes and tailings containing highly elevated arsenic (As) …
MINE CLOSURE CONSIDERATIONS IN ARID AND SEMI-ARID AREAS J.A. van Zyl Dirk1 and Vladimir Straskraba2 1 Geotechnical and Environmental Mining Consultant Parker, Colorado, USA ... MINE CLOSURE CONSIDERATIONS IN ARID AND SEMI-ARID AREAS Country Gold Silver Copper Lead Zinc USA 14 12 18 4 8 Australia 11 8 -4 17 14 Chile 5 …
Ecological security assessment and pattern construction in arid and semi-arid areas: A case study of the Hexi Region, NW China. Author links open overlay panel Ninghui Pan ... of landscape ecological network based on landscape ecological risk assessment in a large-scale opencast coal mine area. J. Cleaner Prod., 286 (125523) …
Coal power activities could cause regional fluctuations of trace elements, but the distribution information of these trace elements in arid and semi-arid areas is insufficient. In this study, the soil trace elements (As, B, Be, Cd, Co, Cr, Cu, Fe, Ga, Ge, Mn, Mo, Ni, Pb, Sb, Sn, Sr, Ti, Tl, and Zn) of Ningdong Coal Power Production Base in …
There are 11.4 million acres of suitable arid and semi-arid land in Kenya where woodlots can be established. Africa Kenya Uganda Tanzania ePaper ... with government targets aiming to establish five …
Furthermore, the surface SM in 65.87% (33.57%, Sig.) of the GVG area decreased mainly from Humid and Dry sub-humid areas, including the southeast of the United States, Brazilian Plateau, inland areas of Europe, Africa north of the equator, and the south of China, Semi-arid areas such as the middle of North America and northern …
Coal provides the necessary energy base for the survival and development of human society (Ming et al., 2013).China's northwestern region is rich in coal resources and has experienced a high intensity of coal (Chang et al., 2021).The overexploitation of coal resources has led to threats to the eco-geo-environment of mining cities in northwest …
The model can be applied to estimate the effect of climate change on AMD generation and water quality in arid and semi-arid areas, because it can characterize the geochemical evolution of AMD from mine wastes under similar drying and evaporative conditions as found in arid or semiarid climatic zones, that are controlled not only by …
It proposes a restoration strategy for mine areas in semi-arid regions that prioritizes natural regeneration supported by artificial guidance. This work provides valuable insights and guidance for assessing the impact of underground coal mining on surface vegetation in semi-arid areas, as well as for the rehabilitation and ecological ...
A.2.3. Managing arid and semi-arid ecosystems Specific Targeted Research or Innovation Project CAMINAR Contract No. INCO-CT2006-032539 Catchment Management and Mining Impacts in Arid and Semi-Arid South America D 7 GIS environment database and report January 2008 Authors: Luis Ribeiro, Ana Buxo Instituto Superior …
Addressing the inadequacy of theoretical frameworks and evaluation indicators for assessing the health of seasonal rivers in arid and semi-arid regions, this study aims to enrich the theoretical foundation for the management and ecological restoration of seasonal river systems. By selecting seven indicators from three aspects: …
Background. Nowadays, the global water demand is a challenging issue worldwide. Thus, according to UNICEF (2012) reports currently 36 countries are facing extreme water shortage. 1 Arid and semi-arid regions are commonly located in India, in Southeast Asia, sub-Saharan Africa, much of the Southern and Eastern Africa and a few …
Open-pit coal mining plays an important role in supporting national economic development; however, it has caused ecological problems and even seriously impacted regional ecological stability. Given the importance of maintaining ecological stability in semi-arid coal mining areas, this study used a coupling coordination degree approach based …
``` gold minning in arid and semi arid areasImpacts of artisanal gold mining systems on soil and woody, Impacts of artisanal gold mining systems on soil and woody vegetation in th
Recent studies reveal the existence of areas of gold mineralization in desert areas around the world (Reid et al. 2009). The same conclusion can be made for lead and chromium (Pyatt et al. 1999). These arid-zone …
During the mining process, a large area of land will be encroached upon, resulting in the loss of soil resources and destroy the crust layer. The destruction of soil …
Arid and semi-arid regions are defined as areas where water is at its most scarce. The hydrological regime in these areas is extreme and highly variable, and they face great pressures to deliver and manage freshwater resources. However, there is no guidance on the decision support tools that are needed to underpin flood and water resource ...
Agricultural Drainage Water Management in Arid and Semi-Arid Areas. FAO IRRIGATION AND DRAINAGE PAPER 61. FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 2002. Table of Contents. by. Kenneth K. Tanji Hydrology Program Department of Land, Air and Water Resources University of California
1 Modelling hydrological processes in arid and semi-arid areas: an introduction to the workshop H. S. Wheater. 1.1 INTRODUCTIONx. In the arid and semi-arid regions of the world, water resources are limited, and under severe and increasing pressure due to expanding populations, increasing per capita water use and irrigation.
Soil salinity is a major concern in the arid and semi- arid regions of the world and considered an environmental menace (Metternicht and Zinck, 2003, Shrestha and Farshad, 2008, Kumar et al., 2018).It triggers the processes of soil erosion, dispersion and sometimes becomes a geo-hazard (Youssef et al., 2012) by making the ground …
Arsenic contamination in abandoned and active gold mine spoils in Ghana: geochemical fractionation, speciation, and assessment of the potential human health risk. Environ. ... water and sediments in a semi-arid climate mining area in Mexico. Water Air Soil Pollut, 152 (2004), pp. 129-152, 10.1023/B:WATE.0000015350.14520.c1. View in …
Identifying exogenous threats to arable land in arid and semi-arid areas and their action modes is of great significance for constructing countermeasure system of regional arable land protection, building an arable land ecological security barrier, and guaranteeing the ecological service function of arable land. ...
In addition, freshwater supply is a challenge in many parts of the world, especially in arid and semi-arid areas. Thus, the treatment and purification of mining wastewater for reuse are essential to mitigate water scarcity [6, 7]. ... This technology is operating in a gold mine in Australia, targeting As, Mg, Sb, Ca, and sulfate.
This study investigates geochemistry and ecological risk of artisanal gold mining-derived potentially harmful elements in semi-arid soils in Burkina Faso. R-mode …
Este documento ha sido elaborado dentro del proyecto CAMINAR (Catchment Management and Mining Impacts in Arid and Semi-Arid South America; Gestión de Cuencas con Actividad Minera en Regiones ...
Metals such as gold, copper and lead can be found in soil at high concentration at many desert locations. However, adverse weather conditions, specifically a lack of moisture, limit the range of applicable technologies to recover these metals. A number of plant species have been tested under both laboratory and field conditions to determine their potential …
6 Institute of Ecological Environment Restoration in Mine Areas of West China, Xi'an University of Science and Technology, Xi'an, 710054, China. # Contributed equally. ... (AMF) diversity in five arid and semi-arid revegetation types (Hippophae rhamnoides, Amorpha fruticosa, Cerasus humilis, Cerasus szechuanica, and Xanthoceras …
Small scale gold mining effects on the miners and local communities in semi-arid region of Ethiopia. December 2015; Authors: ... gold mining sites are in remote rural areas scat tered, ...
The results presented above confirm the effectiveness of the technological framework developed in this study for conducting mine environmental surveys in arid/semi-arid areas. In terms of application effectiveness, the framework exhibits broad applicability and offers a distinct advantage for conducting large-scale mine environmental surveys.
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