Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley
The results of the local fires reconstruction based on the stratigraphic analysis of the peat deposit in the right-bank part of the Dubches River valley (middle taiga of the Yenisei Siberia) in the Holocene are presented. The object of research was the raised pine-shrub-sphagnum bog with a well-deve...
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Russian Academy of Sciences, Siberian Branch Publishing House
2022
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ftdoajarticles:oai:doaj.org/article:78c04517a745483c909b3ad42aa48e22 2023-05-15T18:31:03+02:00 Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley L. V. Karpenko A. V. Grenaderova A. B. Mikhailova O. V. Podobueva 2022-08-01T00:00:00Z https://doi.org/10.15372/SJFS20220401 https://doaj.org/article/78c04517a745483c909b3ad42aa48e22 EN RU eng rus Russian Academy of Sciences, Siberian Branch Publishing House https://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/681/6811d1a95bc6fbe482d7e1dc08e05b80.pdf https://doaj.org/toc/2311-1410 https://doaj.org/toc/2312-2099 doi:10.15372/SJFS20220401 2311-1410 2312-2099 https://doaj.org/article/78c04517a745483c909b3ad42aa48e22 Сибирский лесной журнал, Vol 9, Iss 4, Pp 3-13 (2022) mire macrocoal analysis pyrogenic layers charcoal inflow peaks fire dynamics Forestry SD1-669.5 article 2022 ftdoajarticles https://doi.org/10.15372/SJFS20220401 2022-12-30T22:05:18Z The results of the local fires reconstruction based on the stratigraphic analysis of the peat deposit in the right-bank part of the Dubches River valley (middle taiga of the Yenisei Siberia) in the Holocene are presented. The object of research was the raised pine-shrub-sphagnum bog with a well-developed tree layer with Scots pine (Pinus sylvestris L.). The deposit thickness was 4.15 m, its age was interpreted by 11 radiocarbon dates. The bottom peat layer age was 11802 ± 52 14C years ago. In a peat core at depths of 3.25, 3.15, 2.90, 2.65 m, traces of fires were found in the form of pyrogenic layers. Reconstruction of the fire dynamics was carried out according to the method of counting macroscopic particles of charcoal “Charcoal”. The time, periodicity and intensity of fires on dry areas surrounding the bog have been established. Four periods were identified in the dynamics of local fires: about 12000–10000, 8250–7250, 6300–4000, 2400 cal. a BP (calibrated age before present). The reliable peaks of charcoal inflow occurred on the following dates: 11600, 11150, 10500, 7800, 5900, 5450, 4600, 1900, 1200 and 250 cal. a BP. It is noted that the highest fire activity was observed in the early Holocene, as evidenced by the increased content of macrocharcoals in peat. The main cause of the fires was probably the abnormally dry spring-summer seasons due to the dry and warm climate. The bog was traversed by fire during: 7790, 7030, 5610 and 4890 cal. a BP. The pyrogenic destruction of peat was minimal, which indicated a weak or medium intensity of the peat fire. Fires in the bog contributed to the activation of the forest formation process. In the late Holocene, the effect of fires on the bog ceased and forest phytocenoses were replaced by heavily watered ridge-hollow complexes. Article in Journal/Newspaper taiga Siberia Directory of Open Access Journals: DOAJ Articles Сибирский лесной журнал 4 3 13 |
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English Russian |
topic |
mire macrocoal analysis pyrogenic layers charcoal inflow peaks fire dynamics Forestry SD1-669.5 |
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mire macrocoal analysis pyrogenic layers charcoal inflow peaks fire dynamics Forestry SD1-669.5 L. V. Karpenko A. V. Grenaderova A. B. Mikhailova O. V. Podobueva Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
topic_facet |
mire macrocoal analysis pyrogenic layers charcoal inflow peaks fire dynamics Forestry SD1-669.5 |
description |
The results of the local fires reconstruction based on the stratigraphic analysis of the peat deposit in the right-bank part of the Dubches River valley (middle taiga of the Yenisei Siberia) in the Holocene are presented. The object of research was the raised pine-shrub-sphagnum bog with a well-developed tree layer with Scots pine (Pinus sylvestris L.). The deposit thickness was 4.15 m, its age was interpreted by 11 radiocarbon dates. The bottom peat layer age was 11802 ± 52 14C years ago. In a peat core at depths of 3.25, 3.15, 2.90, 2.65 m, traces of fires were found in the form of pyrogenic layers. Reconstruction of the fire dynamics was carried out according to the method of counting macroscopic particles of charcoal “Charcoal”. The time, periodicity and intensity of fires on dry areas surrounding the bog have been established. Four periods were identified in the dynamics of local fires: about 12000–10000, 8250–7250, 6300–4000, 2400 cal. a BP (calibrated age before present). The reliable peaks of charcoal inflow occurred on the following dates: 11600, 11150, 10500, 7800, 5900, 5450, 4600, 1900, 1200 and 250 cal. a BP. It is noted that the highest fire activity was observed in the early Holocene, as evidenced by the increased content of macrocharcoals in peat. The main cause of the fires was probably the abnormally dry spring-summer seasons due to the dry and warm climate. The bog was traversed by fire during: 7790, 7030, 5610 and 4890 cal. a BP. The pyrogenic destruction of peat was minimal, which indicated a weak or medium intensity of the peat fire. Fires in the bog contributed to the activation of the forest formation process. In the late Holocene, the effect of fires on the bog ceased and forest phytocenoses were replaced by heavily watered ridge-hollow complexes. |
format |
Article in Journal/Newspaper |
author |
L. V. Karpenko A. V. Grenaderova A. B. Mikhailova O. V. Podobueva |
author_facet |
L. V. Karpenko A. V. Grenaderova A. B. Mikhailova O. V. Podobueva |
author_sort |
L. V. Karpenko |
title |
Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
title_short |
Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
title_full |
Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
title_fullStr |
Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
title_full_unstemmed |
Reconstruction of Holocene local fires according to the macrocharcoals content from the peat deposits in the Dubches river valley |
title_sort |
reconstruction of holocene local fires according to the macrocharcoals content from the peat deposits in the dubches river valley |
publisher |
Russian Academy of Sciences, Siberian Branch Publishing House |
publishDate |
2022 |
url |
https://doi.org/10.15372/SJFS20220401 https://doaj.org/article/78c04517a745483c909b3ad42aa48e22 |
genre |
taiga Siberia |
genre_facet |
taiga Siberia |
op_source |
Сибирский лесной журнал, Vol 9, Iss 4, Pp 3-13 (2022) |
op_relation |
https://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/681/6811d1a95bc6fbe482d7e1dc08e05b80.pdf https://doaj.org/toc/2311-1410 https://doaj.org/toc/2312-2099 doi:10.15372/SJFS20220401 2311-1410 2312-2099 https://doaj.org/article/78c04517a745483c909b3ad42aa48e22 |
op_doi |
https://doi.org/10.15372/SJFS20220401 |
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Сибирский лесной журнал |
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