The forecast of fire impact on Pinus sylvestris renewal in southwestern Siberia

Sannikov, S. N.; Sannikova, N. S.; Петрова, И. В.; Cherepanova, Olga A

doi:10.1007/s11676-020-01260-1

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…Pinus sylvestris is adapted to low‐intense ground fires and pulses of natural regeneration typically occur in the vicinity of surviving trees shortly after fire (Kuuluvainen, 2016 ). Extensive mortality and crown scorches of overstory trees therefore likely reduced the number of available pine seeds on site, leading to slower recolonization dependent on distant seed sources (Sannikov et al, 2021 ). The reduced presence of ectomycorrhizal fungi observed in stands with high tree mortality could also have reduced the access of tree seedlings to established mycorrhizal mycelia (Ibáñez et al, 2021 ), which could disfavor recolonization by both P. sylvestris and Betula spp.…”

Section: Discussionmentioning

confidence: 99%

Fire severity as a key determinant of aboveground and belowground biological community recovery in managed even‐aged boreal forests

Pérez‐Izquierdo

Bengtsson

Clemmensen

et al. 2023

Ecology and Evolution

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Changes in fire regime of boreal forests in response to climate warming are expected to impact postfire recovery. However, quantitative data on how managed forests sustain and recover from recent fire disturbance are limited. Two years after a large wildfire in managed even‐aged boreal forests in Sweden, we investigated how recovery of aboveground and belowground communities, that is, understory vegetation and soil microbial and faunal communities, responded to variation in the severity of soil (i.e., consumption of soil organic matter) and canopy fires (i.e., tree mortality). While fire overall enhanced diversity of understory vegetation through colonization of fire adapted plant species, it reduced the abundance and diversity of soil biota. We observed contrasting effects of tree‐ and soil‐related fire severity on survival and recovery of understory vegetation and soil biological communities. Severe fires that killed overstory Pinus sylvestris promoted a successional stage dominated by the mosses Ceratodon purpureus and Polytrichum juniperinum, but reduced regeneration of tree seedlings and disfavored the ericaceous dwarf‐shrub Vaccinium vitis‐idaea and the grass Deschampsia flexuosa. Moreover, high tree mortality from fire reduced fungal biomass and changed fungal community composition, in particular that of ectomycorrhizal fungi, and reduced the fungivorous soil Oribatida. In contrast, soil‐related fire severity had little impact on vegetation composition, fungal communities, and soil animals. Bacterial communities responded to both tree‐ and soil‐related fire severity. Synthesis: Our results 2 years postfire suggest that a change in fire regime from a historically low‐severity ground fire regime, with fires that mainly burns into the soil organic layer, to a stand‐replacing fire regime with a high degree of tree mortality, as may be expected with climate change, is likely to impact the short‐term recovery of stand structure and above‐ and belowground species composition of even‐aged P. sylvestris boreal forests.

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Section: Discussionmentioning

confidence: 99%

Fire severity as a key determinant of aboveground and belowground biological community recovery in managed even‐aged boreal forests

Pérez‐Izquierdo

Bengtsson

Clemmensen

et al. 2023

Ecology and Evolution

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“…Nevertheless, increases in drought severity and summer temperatures may lead to a large increase in the portion of fires that are stand-replacing (de Groot et al, 2013;Tepley et al, 2018). At the same time, heatwave and drought events which are increasing with climate change and potentially greatly reducing the survivability of seedling and saplings (Boucher et al, 2019;Sannikov et al, 2020). Our modelling approach assumes a constant tree cover, but there is strong evidence that forest fragmentation directly increases the frequency of fires (Tepley et al, 2018).…”

Section: The Limitations Of Future Predictions Of Forest Lossmentioning

confidence: 99%

Climate change, fire return intervals and the growing risk of permanent forest loss in boreal Eurasia

Burrell¹,

Sun²,

Baxter³

et al. 2021

Preprint

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Climate change has driven an increase in the frequency and severity of fires in Eurasian boreal forests. A growing number of field studies have linked the change in fire regime to post-fire recruitment failure and permanent forest loss. In this study we used four burnt area and two forest loss datasets to calculate the landscape-scale fire return interval (FRI) and associated risk of permanent forest loss. We then used machine learning to predict how the FRI will change under a high emissions scenario (SSP3-7.0) by the end of the century. We found that there is currently 133 000 km2 at high, or extreme, risk of fire-induced forest loss, with a further 3 M km2 at risk by the end of the century. This has the potential to degrade or destroy some of the largest remaining intact forests in the world, negatively impact the health and economic wellbeing of people living in the region, as well as accelerate global climate change.

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