Reconstruction of Changes in Terrestrial Vegetation in the Krasnoyarsk Reservoir Basin Based on Palynological Analysis of Bottom Sediments in the Varcha Bay (Republic of Khakassia) : научное издание
Библиографическое описание:Reconstruction of Changes in Terrestrial Vegetation in the Krasnoyarsk Reservoir Basin Based on Palynological Analysis of Bottom Sediments in the Varcha Bay (Republic of Khakassia) : научное издание / D. Y. Rogozin, P. S. Belyanin, A. G. Degermendzhi. - Текст : непосредственный // Doklady Earth Sciences. - 2026. - Т.529, №1. - P. 1-6. - This work was supported by the Russian Science Foundation (project no. 22-17-00185-P). - ISSN 1028-334X. - ISSN 1531-8354, DOI 10.1134/S1028334X26601069.
Аннотация:Based on the spores and pollen analysis of bottom sediments from the Varcha Bay (Krasnoyarsk Reservoir, Republic of Khakassia), changes in terrestrial vegetation in its basin since the reservoir formation and in the adjacent area following the construction of the Krasnoyarsk Hydroelectric Power Station have been found out for the first time. Two vegetation development stages have been identified. During the first phase (before flooding in 1967), when the bay was a small, endorheic Lake Varcha, not connected to the Yenisei River, wormwood steppes were widespread in its basin. The forest vegetation consisted of sparse pine clumps with few fir, spruce, and larch trees. During the second phase (1971–2024), after formation of the permanently deep Varcha Bay, the cognominal lake was replaced by sedge–grass meadows developed near the shores. Birch forests expanded, and willow, dwarf birch, and dwarf alder appeared. The results demonstrate changes in the terrestrial ecosystems in the south of Yenisei Siberia caused by the construction of a large water reservoir in the steppe zone.
Держатель оригинала документа:Institute of Biophysics, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Pacific Geographical Institute, Far East Branch, Russian Academy of Sciences, Siberian Federal University
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