Assessing the impacts of river bed mining on aquatic ecosystems:
2024年1月1日 Unlawful sand mining operations result in high levels of suspended particles in the water column, seriously harming the river ecosystems. Uncontrolled sand and gravel
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The environmental impacts of river sand mining - ScienceDirect
2022年9月10日 This paper brings together the effects of river sand mining on the physical, biological, chemical, and anthropogenic environment through a systematic literature review.
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Impacts of riverine sand mining on freshwater
Of the studies reporting the type of mining, most focused on instream mining. Eight focused on the impacts of dry mining (removal of material from an exposed area above the water table, such as on a floodplain), with only two
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(PDF) Impacts of riverine sand mining on freshwater
2020年2月5日 Our results confirm that in-channel gravel mining and aquifer overexploitation over the last 50 years in the case study area have changed the natural stability of the Nogalte stream and, as a...
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Geomorphic and environmental effects of instream gravel mining
1994年4月1日 The potential for gravel extraction to adversely affect anadromous fish habitat in three gravel-bed rivers of southwestern Washington, U.S.A., prompted the need to determine
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On the Morphological Impacts of Gravel 66 Mining: The Case of
Gravel mining may induce deep changes in river morphology including bank instabilities, downstream as well upstream bed incision. In the present work, morphological changes due to
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On the Morphological Impacts of Gravel Mining: The Case of the
2014年1月1日 Gravel mining may induce deep changes in river morphology including bank instabilities, downstream as well upstream bed incision. In the present work, morphological
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River Sand Mining and its Management: A Global Challenge
2021年8月1日 Indiscriminate sand and gravel mining over the years has imposed permanent damages to the river ecosystems in the several parts of the India. Padmalal D. (2008–2014) is
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Geomorphic and environmental effects of instream gravel m1n1ng
Instream gravel mining commonly causes incision of the channel bed, which can propagate upstream and down stream for kilometers. As a result, bridges and other structures may be
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Impacts of riverine sand mining on freshwater
Of the studies reporting the type of mining, most focused on instream mining. Eight focused on the impacts of dry mining (removal of material from an exposed area above the water table, such as on a floodplain), with only two addressing
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Towards an increase of flash-flood geomorphic effects due to gravel
2016年4月25日 In-channel gravel mining may be responsible for significant local changes in channel incision and profile. This, ... which intensify the consequences of the flooding.
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A General Overview of the Technology of In-Stream Mining of
It then describes in-stream mining of sand and gravel including extraction, processing, and reclamation. It follows with a generalized description of stream dynamics. It concludes with a discussion, by way of selected examples, of the broad range of potential impacts and describes some techniques that have been successfully used to prevent or limit those impacts.
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Morphological evolution of the Maipo River in central Chile:
2018年4月1日 Instream gravel mining is one of the most important causes of channel degradation in South America, specifically in rivers located near large metropolitan areas with rapidly growing cities, where ...
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A General Overview of the Technology of In-Stream Mining of
2003年1月1日 Instream gravel mining influenced the variation in detection probabilities for 38% of the species collected, probably because it led to habitat loss and increased sedimentation.
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Sand Mining Consequences on Channel Morphology: Practical
2021年8月1日 In term of mining consequences, instream mining pit formation leads to reverse change in channel planform meanwhile channel depth and width both are increases towards the downstream. ... Geomorphic and environmental effects of instream gravel mining. Landscape Urban Plan 28(2–3):225–243. Article Google Scholar
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NHESS - Towards an increase of flash flood geomorphic effects
In-channel gravel mining may be responsible for significant local changes in channel incision and profile. This, together with the collateral effects of aquifer overexploitation, can favour increased river velocity and stream power, which intensify the consequences of the flooding.
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Sand, gravel, and UN Sustainable Development Goals: Conflicts ...
2021年8月20日 Sand, gravel, and crushed stone (collectively referred to herein as aggregates) are the most in-demand materials on the planet in terms of volume. 1, 2 Together, they are a central foundation of our economies and integral to sectors such as construction, infrastructure, electronics, cosmetics, and pharmaceuticals. 3 The growing need to protect the world's
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Sand Mining in India and its Evaluation using Swot Analysis- A
2022年12月29日 Methods of sand extraction from River (Source-Made by Author) Sand excavation from Active channels The methods used for instream gravel and sand mining is described by Padmalal, D. 28
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Gravel and boulders mining from mountain stream beds - e3s
Gravel and boulders mining from mountain stream beds Artur Radecki-Pawlik 1,*, Anna Kidová2, Milan Lehotsky2, Miloš Rusnák2, Russell Manson3, Bartosz Radecki-Pawlik1 1Cracow University of Technology, Faculty of Civil Engineering, Krakow, Poland 2Slovak Academy of Sciences, Institute of Geography, Bratislava, Slovakia 3School of Natural Sciences and Mathematics,
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(PDF) Sand and Gravel Mining and its Consequences
2022年1月1日 Mining of Sand and gravel is one of the important economic activities practiced in the Eastern Dooars. Ever-expanding human needs and economic progress creates a massive load on the natural asset ...
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Consequences of sand mining on water quality and
2019年12月1日 Instream sand mining is one of the human operations to degrade the physicochemical parameters of river water. Instream mining activity leads to sediment transport interruptions and suspended solid ...
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Mining and biodiversity: key issues and research
2018年12月5日 For example, mining is often considered to have insignificant consequences for biodiversity relative to other threatening processes (but see ); mining companies have little incentive or capability to contribute towards
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River Sand Mining Modelling and Sustainable Practice
Proposes specific practicable measures to minimize the environmental consequences of instream sand mining using different geospatial ... and gravel mining (of perennial channels) are two anthropogenic issues that negatively affect the sustainable drainage system. Along the Kangsabati River in India, the consequences of sand mining are very ...
MoreSand Mining Consequences on Channel Morphology: Practical
2021年8月1日 In term of mining consequences, instream mining pit formation leads to reverse change in channel planform meanwhile channel depth and width both are increases towards the downstream. ... Geomorphic and environmental effects of instream gravel mining. Landscape Urban Plan 28(2–3):225–243. Article Google Scholar
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Human, environmental costs of sand, gravel mining overlooked — study
2021年9月9日 Researchers say sand and gravel are the most mined materials in the world, with between 32 and 50 billion tonnes extracted globally each year. Human, environmental costs of sand, gravel mining ...
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Hungry Water: Effects of Dams and Gravel Mining on River Channels
1997年7月1日 The downstream consequences of interrupting the. flux of sand and gravel transport would argue for. ... instream gravel mining may. induce channel incision, bed coarsening, and lateral.
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Geomorphic and environmental effects of instream gravel mining
1994年4月1日 Semantic Scholar extracted view of "Geomorphic and environmental effects of instream gravel mining" by G. Kondolf. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. 221,906,278 papers from all fields of science. ...
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Sand Mining: Environmental Impacts and Selected Case Studies
2014年6月12日 Rivers, the most important life sustaining systems in tropics and subtropics, are under immense pressure due to various kinds of human interventions. Among these, indiscriminate sand and gravel mining from the active channels and floodplains are the most disastrous one as the activity threatens the very existence of the river ecosystem. The problem
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Alluvial Artisanal and Small-Scale Mining in A River Stream
2020年7月16日 Artisanal and small-scale mining is a significant economic sector in Rwanda. Mining activities often use a watercourse, in which secondary extraction takes place and minerals are washed. Mining thus greatly affects the geomorphological conditions in the area. The aim of this paper is a digest of environmental impacts of alluvial artisanal and small-scale mining
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