Detailed reconstruction of the functional state of the Central Yamal khasyrey as a response to local conditions and regional climate changes in the late Holocene

[摘要] In this article, data of reconstruction of the dynamics of plant communities, water regimes, geocryological conditions, and peat accumulation of the khasyrey of Central Yamal Peninsula located in the tundra of Western Siberia by traditional paleoecological methods on the basis of detailed studies of the botanical composition, degree of decomposition, density, ash content and δ13C in the cellulose of peat cut pulp age about 1300 cal. BP are considered. It has been shown that the khasyrey has a sensitive response on century and decadal scales to climate change and the lake regime level. Moreover, the stages of khasyrey functional state are in a good agreement with similar data on mires of the forest zone of Western Siberia and the solar activity periods.

[发布机构] Institute of Monitoring of Climatic and Ecological Systems, SB RAS, 10/3, Academichesky ave., Tomsk; 634055, Russia^1;Earth Cryosphere Institute, SB RAS, 86, Malygina str., Tyumen; 625026, Russia^2

[效力级别] 计算机科学

[关键词] Botanical composition;Degree of decomposition;Functional state;Local conditions;Peat accumulation;Plant communities;Regional climate changes;Western siberia