Plant Pigments in the Ivankovo Reservoir Silts as Indicators of Destruction Processes |
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Authors: | Sigareva L E Timofeeva N A |
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Institution: | (1) Institute of Inland Water Biology, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavskaya oblast, 152742, Russia |
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Abstract: | The trophic state of the Ivankovo Reservoir is evaluated based on the characteristics of phytoplankton development and silt accumulation. Data on the space and time distribution of plant pigments in silt deposits are examined. Correlation between plant pigments and the main characteristics of silts are established. The ratio of chlorophyll content of the normal annual layer of sediment accumulation to the annual primary production of phytoplankton is calculated. The bedding of gray clayey silts onto gray sandy silts is shown to correlate with an increase in pigment concentrations in the top sediment horizons. |
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