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Effects of placer mining on suspended sediment budget: case study of north of Russia’s Kamchatka Peninsulaстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 ноября 2014 г.
- Автор: Chalov S.R.
- Журнал: Hydrological Sciences Journal/Journal des Sciences, Hydrologiques
- Том: 59
- Номер: 5
- Год издания: 2014
- Издательство: International Association of Hydrological Sciences Press
- Местоположение издательства: United Kingdom
- Первая страница: 1081
- Последняя страница: 1094
- DOI: 10.1080/02626667.2014.903330
- Аннотация: Abstract Placer mines are located in the river valleys, along river benches, or along the pathways of ancient channels. Open-pit mining alters stream hydrology and enhances sediment transport. The present study is devoted to the sediment transport in the area of the platinum placer mining located at the North of Russia’s Kamchatka Peninsula (Seynav-Galmoenan placer deposits). Based on hydrological field investigations, a conceptual model was derived to assess anthropogenic effects on the total sediment budget of rivers. Model illustrates key processes controlling sediment dynamics in the Vyvenka river watershed. Field works included water discharges and sediment load measurements, assessment of annual channel change in river along mining sites, and evaluation of the relative importance of sediment sources and transport processes. In this study, we estimated total sediment delivery from open-cast placer mining of 60 t/year (annual mass wasting rate ranges from 2 to 5,5 kg/m2 year) which is 3 orders of magnitude higher than compared to non-mined streams. Mass wasting dominates surface erosion on the hillslopes and followed by significant waste water effluents; however, erosion of the artificially stratified channel reaches is the primary contributor to annual sediment yield from the mined rivers (21,4 %). http://www.tandfonline.com/eprint/gwA6ce6JtBAFk6ZDzY8f/full#.U5nxqShR8dM
- Добавил в систему: Чалов Сергей Романович