Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

/ V. I. Kharuk, M. L. Dvinskaya, K. J. Ranson // Int. J. Wildland Fire. - 2013. - Vol. 22, Is. 2. - P207-211, DOI 10.1071/WF11181. - Cited References: 28. - This research was supported by the SB RAS Program Number 27.33, and NASA Science Mission Directorate, Terrestrial Ecology Program. The authors thank Dr Joanne Howl for editing the manuscript. . - 5. - ISSN 1049-8001РУБ Forestry

Аннотация: A fire history of northern larch forests was studied. These larch forests are found near the northern limit of their range at similar to 71 degrees N, where fires are predominantly caused by lightning strikes rather than human activity. Fire-return intervals (FRIs) were calculated based on fire scars and dates of tree natality. Tree natality was used as an approximation of the date of the last fire. The average FRI was found to be 295 +/- 57 years, which is the longest reported for larch-dominated stands. Prior studies reported 80-90-year FRIs at 64 degrees N and similar to 200 years near the latitude of the Arctic Circle. Comparing data from fires that occurred in 1700-1849 (end of the Little Ice Age, LIA) and 1850-1999 (post-LIA warming) indicates approximately twice as many fires occurred during the latter period. This agrees with the hypothesis that observed climatic warming will result in an increase in fire frequency. Our results also indicate that fires that did not leave visible fire scars on the tree stem may be identified based on the date of growth release revealed from dendrochronology.

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Держатели документа:
[Kharuk, Vyacheslav I.
Dvinskaya, Mariya L.] Siberian Fed Univ, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Ranson, K. Jon] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.

[Text] / T. . Wallenius [et al.] // Int. J. Wildland Fire. - 2011. - Vol. 20, Is. 2. - P248-254, DOI 10.1071/WF10020. - Cited References: 43. - Aleksey Sadvordaev, Galina Zrazhevskaya, Toivo Haltia and Antti Lavikainen helped with the challenging arrangements and the field work. Oskar Ofluds Stiftelse, Nordenskiolds Samfundet and Ulla Wallenius funded the expedition to central Siberia. The Maj and Tor Nessling Foundation (grant number 2003064), Emil Aaltonen Foundation and Finnish Academy (grant number 121919) financed this long-duration study from field work to publication. . - 7. - ISSN 1049-8001РУБ Forestry

Аннотация: To study the poorly known fire history of Larix-dominated forest in central Siberia, we collected samples from 200 trees in 46 systematically located study plots. Our study area stretches similar to 90 km from north to south along the River Nizhnyaya Tunguska in northern Irkustk district. Cross-dated tree-ring chronology for all samples combined extended from the year 1360 AD to the present and included 76 fire years and 88 separate fire events. Average fire cycle gradually lengthened from 52 years in the 18th century to 164 years in the 20th century. During the same time, the number of recorded fires decreased even more steeply, i.e. by more than 85%. Fires were more numerous but smaller in the past. Contrary to expectations, climate change in the 20th century has not resulted in increased forest fires in this region. Fire suppression may have contributed to the scarcity of fires since the 1950s. However, a significant decline in fires was evident earlier; therefore an additional explanation is required, a reduction in human-caused ignitions being likely in the light of historical accounts.

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Держатели документа:
[Wallenius, Tuomo
Heikkinen, Juha] Finnish Forest Res Inst, Vantaa Res Unit, FI-01301 Vantaa, Finland
[Larjavaara, Markku] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
[Shibistova, Olga] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Wallenius, T...; Larjavaara, M...; Heikkinen, J...; Shibistova, O...

/ V. I. Kharuk [et al.] // Reg. Envir. Chang. - 2016. - Vol. 16, Is. 8. - P2389-2397, DOI 10.1007/s10113-016-0964-9. - Cited References:37. - This work was supported by Russian Scientific Foundation, Project #14-24-00112. Field measurements in 2012 were supported in part NASA's Terrestrial Ecology Program. . - ISSN 1436-3798. - ISSN 1436-378XРУБ Environmental Sciences + Environmental Studies

Аннотация: Fire history within the northern larch forests of Central Siberia was studied (65 + A degrees N). Fires within this area are predominantly caused by lightning strikes rather than human activity. Mean fire return intervals (FRIs) were found to be 112 +/- A 49 years (based on firescars) and 106 +/- A 36 years (based on firescars and tree natality dates). FRIs were increased with latitude increase and observed to be about 80 years at 64A degrees N, about 200 years near the Arctic Circle and about 300 years nearby the northern range limit of larch stands (similar to 71A degrees A + N). Northward FRIs increase correlated with incoming solar radiation (r = -0.95). Post-Little Ice Age (LIA) warming (after 1850) caused approximately a doubling of fire events (in comparison with a similar period during LIA). The data obtained support a hypothesis of climate-induced fire frequency increase.

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Держатели документа:
VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.

Доп.точки доступа:
Kharuk, Viacheslav I.; Dvinskaya, Mariya L.; Petrov, Ilya A.; Im, Sergei T.; Ranson, Kenneth J.; Russian Scientific Foundation [14-24-00112]

/ Y. Dvornikov, E. Novenko, M. Korets, A. Olchev // Remote Sens. - 2022. - Vol. 14, Is. 3. - Ст. 790, DOI 10.3390/rs14030790. - Cited References:48. - The studies of the key study regions in Vanavara, Igarka, and Turukhansk (field experiments and satellite data analysis conducted by Y.D. and E.N.) were supported by the Russian Science Foundation (grant 20-17-00043). The data analysis for the study area in Tura was conducted by M.K. and supported by the Russian Science Foundation (grant 21-17-00163). The forest inventory data analysis was also conducted by M.K. and supported by the Russian Foundation for Basic Research (grant 20-45-242908). . - ISSN 2072-4292РУБ Environmental Sciences + Geosciences, Multidisciplinary + Remote Sensing

Аннотация: The history of wildfires along a latitudinal transect from forest-tundra to middle taiga in North-Central Siberia was reconstructed for the period from 1985 to 2020 using Landsat imagery. The transect passed through four key regions (75 x 75 km(2)) with different climate and landscape conditions that allowed us to evaluate regional wildfire dynamics as well as estimate differences in post-fire forest recovery. The Level-2A Landsat data (TM, ETM+, and OLI) were used to derive: (i) burned area (BA) locations, (ii) timing of wildfire occurrence (date, month, or season), (iii) fire severity, and (iv) trends in post-fire vegetation recovery. We used pre-selected and pre-processed scenes suitable for BA mapping taken within four consecutive time intervals covering the entire period of data analysis (1985-2020). Pre- and post-fire dynamics of forest vegetation were described using spectral indices, i.e., NBR and NDVI. We found that during the last three decades, the maximum BA occurred in the southernmost Vanavara region where approximate to 58% of the area burned. Total BA gradually decreased to the northwest with a minimum in the Igarka region (approximate to 1%). Nearly half of these BAs appeared between summer 2013 and autumn 2020 due to higher frequency of hot and dry weather. The most severe wildfires were detected in the most northeastern Tura region. Analysis of NDVI and NBR dynamics showed that the mean period of post-fire vegetation recovery ranged between 20 and 25 years. The time of vegetation recovery at BAs with repeat wildfires and high severity was significantly longer.

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Держатели документа:
Peoples Friendship Univ Russia, Agr Technol Inst, Dept Landscape Design & Sustainable Ecosyst, Moscow 117198, Russia.
Lomonosov Moscow State Univ, Fac Geog, GSP-1,1-12 Leninskie Gory, Moscow 119991, Russia.
Russian Acad Sci, Inst Geog, Staromonetny Lane 29, Moscow 119017, Russia.
Russian Acad Sci, VN Sukachev Inst Forest, KSC SB RAS, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Shirshov Inst Oceanol, Moscow 117997, Russia.

Доп.точки доступа:
Dvornikov, Yury; Novenko, Elena; Korets, Mikhail; Olchev, Alexander; Russian Science FoundationRussian Science Foundation (RSF) [20-17-00043, 21-17-00163, 20-45-242908]