title: On the relation of bottom valley-type reservoir hydrocarbon carbon flux and hydrological structure of water body
metadata.name: dc.contributor.author
metadata.value: Lomova, Diana V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kremenetskaya, Ekaterina R.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Grechushnikova, Maria G.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Efimova, Ludmila E.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Lomov, Viktor A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2021-06-01T14:50:34Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2021-06-01T14:50:34Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2021-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Lomova, D. V., Kremenetskaya, E. R., Grechushnikova, M. G., Efimova, L. E., Lomov, V. A. (2021). On the relation of bottom valley-type reservoir hydrocarbon carbon flux and hydrological structure of water body. Vestnik of Saint Petersburg University. Earth Sciences, 66 (1), 61–73.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2021.104
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/29082
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: Circulation of carbon in water bodies is a fundamental process of the nutrient cycle in water
  ecosystems. Carbon flux from bottom sediments is currently the least studied chain of this circulation.
  The aim of this investigation was the study of HCO3 flux from bottom sediments in
  the valley-type reservoir and identification of their relationship with the hydrological structure
  of the water column. Fieldwork and laboratory experiments were conducted at the Mozhaisk
  reservoir in 2017–2019. These years differed in weather conditions, level regime and stability
  of water masses. Hydrological surveys were conducted three times during the summer period
  of each year. They included measuring the vertical distribution of hydrological characteristics
  and sampling of water and bottom sediments. The Kuznetsov-Romanenko tube method was
  used to study exchange processes. Hydrocarbonate carbon flux from sediments into the water
  may range widely (50–900 mgC/m2day). By comparing HCO3 flux with the hydrological
  structure of the water column, it was revealed that in deep (> 8 m) areas, the release of HCO3
  depends on the stratification and thickness of the uniform hypolymnion, where seiches and
  compensation currents may promote transsedimentation from shallow places to the flooded
  river bed. In areas with a depth of < 8 m, hydrocarbonate carbon flux from sediments depends
  much more on the autochthonic organic matter produced by phytoplankton. The relationship
  between HCO3 flux and the content of organic matter in the soil and its hygroscopic humidity
  is insignificant.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The present work was carried out under the theme АААА-А16-116032810054-3 Hydrological regime
  of water objects under conditions of climate change and anthropogenic impact; fieldwork was supported by
  RFBR 18-05-01066.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 66; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: bottom sediments
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: hydrocarbonate carbon flux
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: stratification
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: reservoir
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: On the relation of bottom valley-type reservoir hydrocarbon carbon flux and hydrological structure of water body
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 61-73.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/29082/1/61-73.pdf
resources.format: Adobe PDF
resources.size: 1,72 MB