The Post-Fire Transformation of Forest Stand Рhytomass in Plantations of the Lower Angara Region

Иванова, Г. А.; Жила, С В; Kukavskaya, Elena; Ivanov, Viktor

doi:10.17238/issn0536-1036.2016.6.17

Cited by 4 publications

(4 citation statements)

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“…Often after wildfires in forest communities, the proportion of light-loving plants increases, i. e. of pine forest and meadow species (Ivanova, Perevoznikova, 1996;Bizyukin, 1998), whereas, in some cases, the proportion of meadow-steppe 11 species is increased (Shpilevskaya, Katkova, 2011). Moreover, the so-called pyrophytes often actively invade the burntout areas (Vostochnoevropejskie..., 2004;Afanas'eva, Berezina, 2011), the emerging "diversity" being qualified as pyrodiversity (Не et al, 2019).…”

Section: Prerequisites Of Ideas About Wildfires As a Factor Increasin...mentioning

confidence: 99%

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Wildfires as a Factor of Loss of Biodiversity and Forest Ecosystem Functions

Geraskina¹,

Тебенькова²,

Ershov³

et al. 2022

FSI

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Due to the ever-increasing anthropogenic impact and global climate change, wildfires are becoming more frequent and intense all over the world. The wildfire factor is turning into an acute problem for forested countries that requires prompt solutions as the areas of forest ecosystems are reducing catastrophically, which results in an irreparable loss of biodiversity that provides all ecosystem functions and services. Many biologists consider wildfires a factor destructive to biota that results in permanent loss of some species and groups of living organisms; even if it is possible for them to recover after a wildfire, they may need a lot of time to do so. However, some studies argue that wildfires do not reduce the biodiversity in forest ecosystems, but even increase it, thus contributing to species conservation and sustainable functioning of forests. This article is aimed at analyzing the studies of how wildfires impact the main components, biodiversity, and functions of forest ecosystems. The authors answer the question of why wildfires while being a destructive factor, are sometimes considered a factor increasing biodiversity. The “positive” influence wildfires have on biodiversity mostly comes down to the formation of mosaic patterns, that is, forest canopy gaps that occur after a wildfire. However, analysis of references shows that the established opinion found in a number of studies that a certain frequency of wildfires is necessary to maintain forest communities may be associated with ignoring or misunderstanding the importance of biotic factors in the functioning of forests. In modern forest ecosystems, populations of keystone large mammal species have disappeared or greatly declined; therefore, there are no microsites they usually form, including large forest canopy gaps (glades) that provide opportunities for photophilous flora and pollinating insects to develop and generally maintain adequate conditions for multi-aged polydominant forest ecosystems with high biodiversity. In the forestry practice, there are measures to maintain mosaics. They include special types of felling, supporting populations of keystone animal species, etc., and are both significantly less catastrophic in comparison with the wildfire factor and substantiated biologically. The authors provide recommendations for the conservation and maintenance of biodiversity and ecosystem functions in modern forests.

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Section: Prerequisites Of Ideas About Wildfires As a Factor Increasin...mentioning

confidence: 99%

“…With no adult woody plants, the settlement of burnt areas will depend on seed transfer by animals (birds and small mammals) (Diaci, 1994). The importance of vegetative reproduction of plants increases as well (Ivanova, Perevoznikova, 1996;Kovaleva et al, 2012).…”

Section: Prerequisites Of Ideas About Wildfires As a Factor Increasin...mentioning

confidence: 99%

Wildfires as a Factor of Loss of Biodiversity and Forest Ecosystem Functions

Geraskina¹,

Тебенькова²,

Ershov³

et al. 2022

FSI

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“…Estimates of forest fuel loads for individual territories of the research area were generalized from data of the studies (Tsvetkov, 2005;Kurbatsky and Ivanova, 1987;Volokitina and Sofronov, 2002;Andreev et al, 2015;de Groot et al, 2013;Ivanova et al, 2007Ivanova et al, , 2016Valendik et al, 2006). At the stage of numerical modeling, a generalized indicator was used an input parameter, characterizing the amount of on-ground cover with a predominance of larch, pine, dark coniferous, and deciduous stands.…”

Section: Forest Fuel Loadsmentioning

confidence: 99%

“…The calculation of the amount of burned forest fuel materials (FFM) and direct calculations of emissions were conducted using (1), (4), and (5). The required data on fuel reserves was generalized from studies where the amounts of fuel reserves for larch, pine, dark coniferous, and deciduous stands of Siberia varied at 1.38-5.4 kg/m 2 (Tsvetkov, 2005;Kurbatsky and Ivanova, 1987;de Groot et al, 2013;Ivanova et al, 2016;Valendik et al, 2006). It was also taken into account that the empirical estimates for fuel reserves in fires of different intensities vary at 0.11-0.97, 0.86-2.15, and 2.25-5.36 kg/m 2 for low-, medium-, and high-intensity combustion, respectively (Conard et al, 2002;Kasischke and Bruhwiler, 2003;Soja et al, 2004).…”

Section: Calculation Of the Amount Of Burned Biomass And Direct Carbon Emissionsmentioning

confidence: 99%

Calibration of Estimates on Direct Wildfire Emissions from Remote Sensing Data

Пономарев

Shvetsov

Litvintsev

2019

Izv. Atmos. Ocean. Phys.

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This study is based on the processing of satellite imagery in the wave range 3.93-3.99 μm (Terra/Modis satellite) and numerical simulation results. It has been found for combustion conditions in Siberian forests that the observed fire radiative power (FRP) is 15% of the total fire power. Variations between 10 and 30% depend on both the fire development scenario (specific burnup rate of 0.01-0.1 kg/m 2 s and fire front velocity of 0.01-0.1 m/s) and the conditions for remote imaging. Instrumental estimates for the ratio of fire areas by given intensity quantiles for Siberian forests are presented. The share of low-, medium-, and high-intensity fires is 41.2-58.9, 35.0-46.5, and 6.10-13.44% of the total area. Refined estimates of fire emissions have been obtained taking into account the amount of biomass burnt and variable burning intensity. The proposed method allows the mass of burned forest fuel materials (FFM) and direct fire emissions to be estimated quantitatively at a level 14-21% lower than the values calculated with the help of standard approaches. The estimates of direct carbon emissions in the given time interval of 2002-2016 were 83 ± 21 Tg/year on average, which is 17% lower than the value 112 ±25 Tg/year obtained with the standard method.

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Biological Productivity of the Post-Fire Larch Forests in the Mountain Regions of Krasnoyarsk Krai

Tselitan,

Danilin

2023

Russ J Ecol

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The Post-Fire Transformation of Forest Stand Рhytomass in Plantations of the Lower Angara Region

Cited by 4 publications

References 0 publications

Wildfires as a Factor of Loss of Biodiversity and Forest Ecosystem Functions

Wildfires as a Factor of Loss of Biodiversity and Forest Ecosystem Functions

Calibration of Estimates on Direct Wildfire Emissions from Remote Sensing Data

Biological Productivity of the Post-Fire Larch Forests in the Mountain Regions of Krasnoyarsk Krai

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