Динамика Ландшафтов И Климата В Центральной И Восточной Европе В Голоцене – Прогнозные Оценки Изменения Природной Среды

Новенко, Е. Ю.

doi:10.31857/s0435428121030093

Cited by 3 publications

(1 citation statement)

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“…Наибольшие скорости и частота лесных пожаров отмечены для рубежа финальной фазы Валдайского оледенения -начала голоцена. В термической максимум голоцена скорости накопления угля и количество пожаров имеют тенденцию к снижению, которая продолжается в среднем голоцене [10]. Вероятно, данные колебания связаны с климатическими изменениями.…”

Section: результатыunclassified

Моделирование реконструкций голоценовой динамики лесных пожаров в программном пакете Tapas

Куприянов

2024

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Выполнена реконструкция истории лесных пожаров территории в пределах Белорусского-Валдайского Поозѐрья в голоцене с помощью программного аппарата Tapas и данных анализа концентрации макроскопических частиц угля в торфе, а также результатов радиоуглеродного датирования отложений. Рассчитаны фоновые и пороговые скорости аккумуляции частиц угля, приведены результаты моделирования пожарных событий и расчѐт межпожарных интервалов.

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Section: результатыunclassified

Моделирование реконструкций голоценовой динамики лесных пожаров в программном пакете Tapas

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2024

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Reconstructions of paleofires in the Upper Don Basin in the Late Holocene

Kupriyanov,

Volkova,

Mironov

et al. 2024

Izvestiâ Rossijskoj akademii nauk. Seriâ geografičeskaâ

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Reconstruction of the fire frequency in the area of the Kulikovo Battlefield Museum Reserve (Upper Don Basin, Central Russian Upland) over the last 4000 years was carried out on the basis of macrocharcoal analysis (study of macroscopic charcoal particles with a linear size greater than 100 μm) of the peat core from the Podkosmovsky bog, which received the status of a specially protected natural area in 2013. The results of macroscopic charcoal analysis were compared with published quantitative reconstructions of forest cover and vegetation dynamics in the region, palynological data and archaeological material. The results of the study showed low fire activity in the area of the Kulikovo Battlefield between 4000 and 1500 cal (calibrated) years BP. According to the results of pollen analysis, the study area belonged to the forest-steppe vegetation zone during this period. The mosaic of plant cover included patches of deciduous pine forests, floodplain alder forests and grassland steppes on dry slopes. The forest cover of the area was 30–40% and reached 45% at about 2700 cal years BP, when the climate cooled and humidity increased. From 1500 cal years BP, the rate of charcoal accumulation in the peat deposit of the Podkosmosky bog gradually increased. The highest frequency of forest fires and the highest charcoal accumulation rates in peat were found for the period 900–300 cal years BP. The relationship between the periods of increased charcoal influx and climatic changes in the Late Holocene has not been established, but there is a clear correspondence between the interval of increased charcoal accumulation in peat and the stages of human activity in the region, confirmed by numerous archaeological finds. The decrease in forest cover in the study area to 15–20% over the same period and the abundance of anthropogenic pollen indicators in the pollen assemblages indicate an increase in human impact on the vegetation.

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Carbon Sequestration in a Karst Mire of the Mordovian Reserve During the Late Holocene

Dyakonov,

Mazei,

Prokushkin

et al. 2024

Lomonosov Geography Journal

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The article presents the results of the study of carbon accumulation over the past 3000 years in the Stol-bovoye karst mire located within the Smidovich Mordovian State Nature Reserve on the southern border of the coniferous-deciduous forests of the East European Plain. Minerothrophic (sedge, wood-sedge, grass) and mesotrophic (Sphagnum, grass-Sphagnum, sedge-Sphagnum, cotton grass) types of peat are present in the peat deposits of the Stolbovoye mire. The mire is at the mesotrophic stage of development. The content of organic carbon varies from 37,2 to 53,4% (49,7% on average). The nitrogen content in peat shows significantly higher variations along the core compared to organic carbon, i. e. from 1,1 to 2,6% (the average value is 1,9%). The total carbon pool in the Stolbovoye mire is about 6,7 kg/m2. The data obtained showed that a fast-growing peatland is capable to sequester large amounts of atmospheric carbon. The carbon accumulation rate in the studied peatland varies from 32,0 to 158,4 g C/m2/yr, with an average of 68,9 g C/m2/yr, which is significantly higher than the average carbon accumulation rates in different types of peatlands during the Holocene. A relationship between carbon accumulation rate and climatic changes over the past 3000 years was not revealed. A significant increase in the rate of carbon accumulation at a depth of 60 cm (480 cal. years BP) could be associated with the high productivity of vascular plants even at higher levels of mineralization/humification of their residues.

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Динамика Ландшафтов И Климата В Центральной И Восточной Европе В Голоцене – Прогнозные Оценки Изменения Природной Среды

Cited by 3 publications

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Моделирование реконструкций голоценовой динамики лесных пожаров в программном пакете Tapas

Моделирование реконструкций голоценовой динамики лесных пожаров в программном пакете Tapas

Reconstructions of paleofires in the Upper Don Basin in the Late Holocene

Carbon Sequestration in a Karst Mire of the Mordovian Reserve During the Late Holocene

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