Evidence of temperature and precipitation change over the past 100 years in a high-resolution pollen record from the boreal forest of Central European Russia

Olchev, A.; Novenko, E.; Popov, V.; Pampura, T.; Meili, M.

Авторы: Alexander Olchev, Elena Novenko, Viktor Popov, Tatiana Pampura, Markus Meili
Журнал: Holocene
Том: 27
Номер: 5
Год издания: 2017
Издательство: SAGE Publications
Местоположение издательства: United States
Первая страница: 740
Последняя страница: 751
DOI: 10.1177/0959683616670472
Аннотация: Near-annual pollen records for the last 100 years were obtained from a 65-cm peat monolith from a raised peat bog in the Central Forest State Natural Biosphere Reserve (southern part of the Valdai Hills, European Russia) and compared with the available long-term meteorological observations. An age–depth model for the peat monolith was constructed by 210Pb and 137Cs dating. Cross-correlation and the Granger causality analysis indicated a broad range of statistically significant correlations between the pollen accumulation rate (PAR) of the main forest-forming trees and shrubs (Picea, Pinus, Betula, Tilia, Quercus, Ulmus, Alnus, and Corylus) and the air temperature and precipitation during the previous 3 years. Results showed that high air temperatures during the growing season (May–September) in the year prior to the flowering led to an increase in pollen productivity of the main tree species. The statistically significant correlation between the PAR of trees and shrubs and winter precipitation of the current and previous years could reflect the influence of winter precipitation on soil water availability and as a result on tree growth and functioning in the spring.
Добавил в систему: Ольчев Александр Валентинович

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Evidence of temperature and precipitation change over the past 100 years in a high-resolution pollen record from the boreal forest of Central European Russiaстатья

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