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Environmental Effects of Sand and Gravel Mining on Land ...

Reduction of Farm and Grazing Lands Results from field observation showed that one of the physical effects of sand and gravel mining in Luku is the reduction of farmlands and grazing lands.

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Effects of type, level and time of sand and gravel

01/06/2018  In turn, sand and gravel mining could change the amount of transported sediment load and river-bed erosion by changing the flow regime (Baratelli et al., 2016, Kheirfam and Sadeghi, 2017, Sadeghi and Kheirfam, 2015, Walling and Fang, 2003). However, there is no comprehensive information on the role of active and non-active mines on SS behavior.

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Environmental Effects of Sand and Gravel Mining on Land ...

and grazing land, collapsing river banks, deforestation and water pollution are the environmental effects that result due to sand and gravel mining in the area. Result of the chemical analysis shows that average concentrations of Pb, As, Cu, Ni, Cd, Hg, Ag and Zr are 47.8, 4.17, 50.9, 32.7, 2.48, 0.1, 0.8 and 496.1ppm respectively. These

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(PDF) Effects of Sand/Gravel Mining in Minna

[8] indicated that Nigerians also benefit a lot from sand and gravel mining which results in the construction of permanent structures from aggregates. This has improved the socio economic life of...

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Effects of Sand/Gravel Mining in Minna Emirate Area of ...

Effects of Sand/Gravel Mining in Minna Emirate Area of Nigeria on Stakeholders Lawal P.O (PhD; FNIQS) Department of Quantity Surveying Federal University of Tech; Minna, Nigeria Tel: 234-803-453-1271 E-mail: [email protected], [email protected] Abstract The paper examined sand and gravel mining activities both on land and the rivers as a business venture in Minna emirate

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What Are The Negative Effects Of Sand Mining? -

13/11/2018  What Are The Negative Effects Of Sand Mining? 1. Sand Mining Causes Erosion Unregulated mining of large volumes of sand along beaches leads to their erosion. Sea... 2. Sand Mining in Beaches and Sand Banks of Rivers Harms Local Wildlife Beaches are located at the intersection between... 3. Sand ...

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PROFILE: Hungry Water: Effects of Dams and Gravel

Sand and gravel are mined for construction aggregate from river channel and floodplains. In-channel mining commonly causes incision, which may propagate up- and downstream of the mine, undermining bridges, inducing channel instability, and lowering alluvial water tables. Floodplain gravel pits have the potential to become wildlife habitat upon reclamation, but may be captured by the active channel and

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Sand and gravel mining impact on the surface water

29/07/2014  Bayram A, Onsoy H (2011) Effects of sand–gravel mining on the water quality in the stream Harsit (Giresun–Tirebolu). 5. Ulusal Su Mühendisliği Sempozyumu, Istanbul, Turkey, pp 813–822 (in Turkish with English abstract) Google Scholar. Bayram A, Kankal M, Onsoy H, Bulut VN (2010a) The effects of hydraulics structures in the stream Harşit on suspended sediment transport. VI. Ulusal ...

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Environmental Effects of Sand and Gravel Mining on Land ...

and grazing land, collapsing river banks, deforestation and water pollution are the environmental effects that result due to sand and gravel mining in the area. Result of the chemical analysis shows that average concentrations of Pb, As, Cu, Ni, Cd, Hg, Ag and Zr are 47.8, 4.17, 50.9, 32.7, 2.48, 0.1, 0.8 and 496.1ppm respectively. These

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Effects of Sand/Gravel Mining in Minna Emirate Area of ...

aftermath of man’s activities such as sand/gravel mining on land include disturbance of the landscape, ugly/distorted topography, agriculturally unproductive terrain, creation of

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(PDF) Effects of Sand and Gravel Mining on Bed

Effects of Sand and Gravel Mining on Bed Sediment Morphometric Characteristics. Engineering Geology, 1(2): 75-86 (In Persian). Effects of Sand and Gravel Mining on Bed Sediment Morphometric Characteristics S. H.R. Sadeghi, A.V. Khaledi Darvishan and L. Gholami1 Abstract Exploitation of materials from river beds changes hydraulic and geometric characteristics of rivers and

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Sand mining effects, causes and concerns: A case study ...

Physical impacts of sand mining include reduction of water quality and destabilization of the stream bed and banks. Mining can also disrupts sediment supply and channel form, which can result in a deepening of the channel (incision) as well as sedimentation of habitats downstream.

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CASE STUDIES OF ENVIRONMENTAL IMPACTS OF SAND MINING

Ecological impacts such as loss of habitats and species disturbance are a result of mining gravel and sand continuously leading to removal of channel substrate, suspension of

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Sand and gravel mining impact on the surface

Due to the fact that sand and gravel mining has used the stream Harşit surface water for material washing, an increase of 125 % in T, 134 % in SSC, 63 % in Mn 2+, 98 % in total chromium, and 111 % in total iron has been determined, respectively, and so the stream water quality has been deteriorated. It is thought that this deterioration may affect the groundwater quality of the stream Harşit aquifer from

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IMPACT OF SAND AND GRAVEL DREDGING ON

Excessive instream sand-and-gravel mining causes the degradation of rivers. Instream mining lowers the stream bottom, which may lead to bank erosion. Depletion of sand in the streambed and along coastal areas causes the deepening of rivers and estuaries, and the enlargement of river mouths and coastal inlets. It may also lead to saline-water intrusion from the nearby sea. The effect of mining ...

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ENVIRONMENTAL IMPACT OF GRAVEL MINING IN

recognizance survey, the adverse environmental effects of sand and gravel mining in the study area includes; open trenches, pits, deforestation, erosion, and damage to agricultural land of the study

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Sand mining: The world is extracting sand faster

The report ‘Sand and Sustainability: Finding new solutions for environmental governance of global sand resources’ stressed that the global demand for sand and gravel stands at 40-50 billion tonnes per year, which could increase to 60 billion tonnes per year by 2030. It emphasised that unsustainable extraction from rivers has led to pollution, flooding, lowering of water aquifers and worsening drought occurrence.

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3. The Environmental Impacts of Aggregate

Home > Gravel > 3. The Environmental Impacts of Aggregate Extraction The Environmental Impacts of Aggregate Extraction With the exception of those who work in the building trades, the closest most of us ever come to “virgin” aggregate (that is, aggregate that comes straight from an aggregate mine and has not been reclaimed from rubble or other debris) is at home building stores.

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Effects of Sand/Gravel Mining in Minna Emirate Area of ...

aftermath of man’s activities such as sand/gravel mining on land include disturbance of the landscape, ugly/distorted topography, agriculturally unproductive terrain, creation of

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(PDF) Effects of Sand and Gravel Mining on Bed

Effects of Sand and Gravel Mining on Bed Sediment Morphometric Characteristics. Engineering Geology, 1(2): 75-86 (In Persian). Effects of Sand and Gravel Mining on Bed Sediment Morphometric Characteristics S. H.R. Sadeghi, A.V. Khaledi Darvishan and L. Gholami1 Abstract Exploitation of materials from river beds changes hydraulic and geometric characteristics of rivers and

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Sand mining effects, causes and concerns: A case study ...

mical and social benefits, but sand mining can also have environmental problems. Environmental problems occur when the rate of extraction of sand, gravel and other materials exceeds the rate at which natural processes generate these materials. The morphologies of the mining areas have demonstrated the impact of mining

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EFFECT OF THE INITIAL LOCATION ON SAND AND GRAVEL MINING ...

effects of over-mining of sand and gravel, which can cause irreversible damages to the morphology of the rivers, and to the nearby structures. Pit migration, based on the hydraulic condition of the river and also the geometry of the pit could be in the downstream or upstream direction. A number of earlier studies have been carried out on numerical modelling of water and sediment transport. For ...

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Sand and gravel mining: effects on ground water

Sand and gravel deposits are important natural resources that have dual uses: mining for construction material and pumping for drinking water. How the mining of sand and gravel affects aquifers and change aquifer vulnerability to contamination is not well documented. Mining regulations vary

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(PDF) Sand mining effects, causes and concerns: A

Stability of structuresSand-and-gravel mining in stream channels can damage public and private property. Channel incision caused by gravel mining can undermine bridge piers and expose buried pipelines and other infrastructure. Bed degradation, also known as channel incision, occurs through two primary processes: (1) headcutting, and (2)"hungry" water. In headcutting, excavation of a mining pit in the

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UNEP - The environmental impact of sand mining

One of the first negative significances of sand mining on the environment is its great influence on rivers. Sand is considered to be very critical for the maintenance and

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Effects of Sand Harvesting on Environment and Educational ...

Collins (1990), states that the effects of sand and gravel harvesting is; extraction of bed material in excess of replenishment by transport from upstream which causes the bed to lower (degrade) upstream and downstream of the site of removal. Bed degradation can undermine bridge supports, pipe lines or other structures, it may change

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Impacts of River Sand Mining SpringerLink

Mining of sand manifold higher than natural replenishments leads to severe damages to river systems. The mining process not only intercepts movement of sediments along the river channels, but disturbs the sediment balance established in the system over the geological time periods. Indiscriminate sand mining imposes several adverse impacts on the various environmental subcomponents of river ecosystems

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IMPACT OF SAND AND GRAVEL DREDGING ON

Excessive in-stream sand-and-gravel mining causes the degradation of rivers. In-stream mining lowers the stream bottom, which may lead to bank erosion. Depletion of sand in the streambed and along coastal areas causes the deepening of rivers and estuaries, and the enlargement of river mouths and coastal inlets. It may also lead to saline-water intrusion from the nearby sea. The effect of mining is compounded by the effect of sea level rise. Any volume of sand

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(PDF) Effects of Sand and Gravel Mining on Bed

Effects of Sand and Gravel Mining on Bed Sediment Morphometric Characteristics S. H.R. Sadeghi, A.V. Khaledi Darvishan and L. Gholami1 Abstract Exploitation of materials from river beds changes hydraulic and geometric characteristics of rivers and increases the flow turbidity and energy, accelerates erosion and creates environmental hazards. The imposed changes may also impress the

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EFFECT OF THE INITIAL LOCATION ON SAND AND GRAVEL MINING ...

effects of over-mining of sand and gravel, which can cause irreversible damages to the morphology of the rivers, and to the nearby structures. Pit migration, based on the hydraulic condition of the river and also the geometry of the pit could be in the downstream or upstream direction. A number of earlier studies have been carried out on numerical modelling of water and sediment transport. For ...

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(PDF) Sand mining effects, causes and concerns: A

Other effects include destruction of habitat for foraging and nesting, increased exposure to re-suspended toxicants, human disturbance from mining operations and increased predator use of recently dredged areas. Riparian habitat, flora and faunaInstream mining can have other costly effects beyond the immediate mine sites.

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Instream sand and gravel mining: Environmental

Sand and gravel are widely used throughout the U.S. construction industry, but their extraction can significantly affect the physical, chemical, and biological characteristics of mined streams. Fisheries biologists often find themselves involved in the complex environmental and regulatory issues related to instream sand and gravel mining.

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MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT

Collins et al. (1990) summarised the effects of sand and gravel mining as listed below: a) Extraction of bed material in excess of replenishment by transport from upstream causes the bed to lower (degrade) upstream and downstream of the site of removal.

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IMPACT OF SAND AND GRAVEL DREDGING ON

Excessive in-stream sand-and-gravel mining causes the degradation of rivers. In-stream mining lowers the stream bottom, which may lead to bank erosion. Depletion of sand in the streambed and along coastal areas causes the deepening of rivers and estuaries, and the enlargement of river mouths and coastal inlets. It may also lead to saline-water intrusion from the nearby sea. The effect of mining is

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Effects of Sand Harvesting on Environment and Educational ...

Collins (1990), states that the effects of sand and gravel harvesting is; extraction of bed material in excess of replenishment by transport from upstream which causes the bed to lower (degrade) upstream and downstream of the site of removal. Bed degradation can undermine bridge supports, pipe lines or other structures, it may change

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Freshwater Gravel Mining and Dredging Issues

Supply of sand and gravel is influenced by many factors, including changes in land use, vegetation, climate, and tectonic activity. This paper is concerned specifically with the response of river channels to a reduction in the supply of these sediments and other effects of in-channel and floodplain gravel mining and freshwater dredging. Figure 1.

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3. The Environmental Impacts of Aggregate

Pits and quarries disrupt the existing movement of surface water and groundwater; they interrupt natural water recharge and can lead to reduced quantity and quality of drinking water for residents and wildlife near or downstream from a quarry site. Most old pits and quarries are not being properly rehabilitated.

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Sand mining: the global environmental crisis you’ve ...

27/02/2017  India’s supreme court recently warned that “the alarming rate of unrestricted sand mining” is disrupting riparian ecosystems all over the country, with fatal consequences for fish and other aquatic...

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