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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. …
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A variety of methods are adopted for alluvial sand extraction. Kondolf et al. described several methods for the extraction of sand from the active channels and floodplain/terraces of riverine environments.3.3.1 Active Channels. Instream sand and gravel mining (Plate 3.2) has been carried out by the following methods: (a) Bar …
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Instream sand mining results in the destruction of aquatic and riparian habitat through large changes in the channel morphology. Degraded stream habitats …
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Regulation and management of instream gravel mining in California is re- viewed by Kondolf ( 1994). Types of mining in alluvial systems The three types of instream gravel mining are dry-pit and wet-pit mining in the active chan- nel and bar skimming. In-channel pit mining involves the excavation of a pit below the thal- ...
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Instream gravel mining commonly causes incision of the channel bed, which can propagate upstream and downstream for kilometers. As a result, bridges and other …
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DOI: 10.1016/J.GEOMORPH.2018.01.019 Corpus ID: 134549779; Morphological evolution of the Maipo River in central Chile: Influence of instream gravel mining @article{Arrspide2018MorphologicalEO, title={Morphological evolution of the Maipo River in central Chile: Influence of instream gravel mining}, author={Felipe Arr{'o}spide and …
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Gravel Mining Definition –Stream gravel mining is the removal of alluvial gravel and sand/silt from stream channels, stream point bars, and/or streambanks immediately ... instream habitat, and (4) encouragement of land management practices protective of …
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Environmental Impact Assessment carried out as a case to address the environmental impact of sand mining from the instream and floodplain areas of three important rivers in the southwestern coast of India shows that the activities associated with mining and processing of sands have not only affected the health of the river ecosystems but also …
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Brown AV, Lyttle MM, Brown KB (1998) Impacts of gravel mining on gravel bed streams. Trans Am Fish Soc 127:979–992 Kondolf GM (1994a) Geomorphic and environmental effects of instream gravel mining. Landscape Urban Plann 28:225–243 Kondolf GM (1994b) Environmental planning in the regulation and management of instream gravel …
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Instream sand and gravel mining: environmental issues and regulatory process in the United States. Fisheries, 23 (11) ... Symposium on Environmental Issues And Waste Management in Energy And Mineral Production, 67–80 (2018), 10.1007/978-3-319-99903-6_6. Google Scholar.
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DOI: 10.1016/0169-2046(94)90027-2 Corpus ID: 83955539; Environmental planning in regulation and management of instream gravel mining in California @article{Kondolf1994EnvironmentalPI, title={Environmental planning in regulation and management of instream gravel mining in California}, author={George Mathias …
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Abstract Mining of gravel for construction aggregate in California is regulated under the concept of 'reclamation', borrowed from open‐pit coal mines, which are recontoured and returned to productive use (such as agriculture) after mine closure. The concept works for dry terrace pits and can be adapted to creation of wildlife habitat in wet terrace pits.
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Consequence of instream sand mining can be categorized into three aspects i.e. channel hydrology, channel morphology, river ecology including surface …
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As a commercial activity, gravel mining has proven to be extremely damaging to natural stable stream functions and has greatly increased flood and erosion damages in Vermont on stream systems that have experienced extensive mining in the past. ... Impact Assessment of Instream Management Practices on Channel Morphology;
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Sand-and-gravel mining in stream channels and mining of sand in the active sand dunes or beach can damage structures built in the coastal areas and river bank by counter effect. Several studies have documented the bed degradation caused by the two general forms of instream mining, viz. pit excavation and bar skimming.
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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 bar skimming (removal of sand and gravel from the surface of exposed river bars).
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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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sediment down the river, and through instream gravel mining, which removes this material from the river system for use primarily in construction-related projects. Impacts identified include: bed ... mining, reservoir management, channels ii! . MANAGEMENT OF COARSE SEDIMENT IN REGULATED RIVERS OF CALIFORNIA
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Kondolf, M. G. 1994. Geomorphic and environmental effects of instream gravel mining. Landscape and Urban Planning 28 (1994) 225-243. Kondolf, M. G. 1997. Profile: Hungry Water: Effects of Dams and Gravel Mining on River. ... assessment of instream management practices on channel morphology, final draft report to.
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Three types of instream sand and gravel mining are addressed, namely dry-pit and wet pit mining in the active channel and bar skimming or "scalping." ... Standard Environmental Management Programme for the Mining of Sand from a River, Stream, Dam or Pan. Mine Rehabilitation, Department of Mineral and Energy Affairs, South Africa. Department of ...
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In California, the mining of sand and gravel from rivers and streams is presently regulated under the state's Surface Mining and Reclamation Act of 1975 (SMARA), with 113 different countries and cities designated as lead agencies for approving reclamation plans and issuing special use permits. These agencies rarely have the technical expertise or …
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An official website of the United States government. Here's how you know
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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 …
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gravel mining resulted in the de-stabilization of the channel with a commensurate ... were used to outline a general flood and erosion hazard management approach regarding instream works and gravel extraction practices in gravel bed streams in the State of Vermont. The recommendations are organized around watershed size and
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Kondolf GM (1994) Geomorphic and environmental effects of instream gravel mining. Landscape and Urban Planning 28(2-3): 225–243. Crossref. Google Scholar. Kondolf GM (1997) PROFILE: Hungry water: Effects of dams and gravel mining on river channels. ... Environmental Management 47(1): 130–140. Crossref. PubMed.
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Instream gravel mining is one of the most detrimental activities in the evolution of the river morphology and has significant consequences over spatial and time scales, from tens of years Petit et al., 1996, Rinaldi et al., 2005, Arnaud et al., 2015 to hundreds of years Surian and Rinaldi, 2003, Comiti et al., 2011, WyŻga et al., 2016.
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Abstract 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 …
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This Gravel Guidance document addresses three types of instream gravel mining, described as dry-pit and wet-pit mining in the active channel, and bar skimming (or "scalping") (Kondolf 1993, 1994a, 1997, 1998a). Dry-pit refers to excavation on dry ephemeral stream beds and exposed bars with conventional bulldozers, scrapers, and …
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