Seasonal and Daily Dynamics of the CO2 Emission from Soils of Pinus koraiensis Forests in the South of the Sikhote-Alin Range

Ivanov, A. V.; Braun, Martin; Tataurov, V. A.

doi:10.1134/s1064229318030043

Cited by 12 publications

(2 citation statements)

References 13 publications

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“…In general, these values are in agreement with existing estimates for boreal regions where the daily mean soil emission rates during a growing season ranged from 0.5 to 4 µmol m −2 s −1 [2,49,59]. However, the intensity of summer CO 2 emissions might be sufficiently larger in the moister monsoon climate of the Russian Far East, where it ranges from 2.3 to 11.0 µmol m −2 s −1 [64].…”

Section: Rain-induced Co 2 Pulsessupporting

confidence: 90%

The Pulses of Soil CO2 Emission in Response to Rainfall Events in Central Siberia: Revisiting the Overall Frost-Free Season CO2 Flux

Makhnykina,

Vaganov,

Panov

et al. 2024

Forests

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Boreal forests nowadays act as a sink for atmospheric carbon dioxide; however, their sequestration capacity is highly sensitive to weather conditions and, specifically to ongoing climate warming. Extreme weather events such as heavy rainfalls or, conversely, heat waves during the growing season might perturb the ecosystem carbon balance and convert them to an additional CO2 source. Thus, there is an urgent need to revise ecosystem carbon fluxes in vast Siberian taiga ecosystems as influenced by extreme weather events. In this study, we focused on the soil CO2 pulses appearing after the rainfall events and quantification of their input to the seasonal cumulative CO2 efflux in the boreal forests in Central Siberia. Seasonal measurements of soil CO2 fluxes (both soil respiration and net soil exchange) were conducted during three consecutive frost-free seasons using the dynamic chamber method. Seasonal dynamics of net soil exchange fluxes demonstrated positive values, reflecting that soil respiration rates exceeded CO2 uptake in the forest floor vegetation layer. Moreover, the heavy rains caused a rapid pulse of soil emissions and, as a consequence, the release of additional amounts of CO2 from the soil into the atmosphere. A single rain event may cause a 5–11-fold increase of the NSE flux compared to the pre-rainfall values. The input of CO2 pulses to the seasonal cumulative efflux varied from near zero to 39% depending on precipitation patterns of a particular season. These findings emphasize the critical need for more frequent measurements of soil CO2 fluxes throughout the growing season which capture the CO2 pulses induced by rain events. This approach has inevitable importance for the accurate assessment of seasonal CO2 soil emissions and adequate predictions of response of boreal pine forests to climatic changes.

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Section: Rain-induced Co 2 Pulsessupporting

confidence: 90%

The Pulses of Soil CO2 Emission in Response to Rainfall Events in Central Siberia: Revisiting the Overall Frost-Free Season CO2 Flux

Makhnykina,

Vaganov,

Panov

et al. 2024

Forests

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“…The lands on this territory belong to floodplains and during periods of high precipitation, snowmelt process the territory where the key plot is located is flooded and the soil is silted up. This leads to impossibility to use this piece of field without reclamation measures for arable land [6,7].…”

Section: Resultsmentioning

confidence: 99%

Spatially-temporal distribution of moisture content and dynamics of greenhouse gas emissions from upper soil horizons in floodplain fallow lands of Bashmakovsky district of Penza oblast

Buzylev,

Tikhonova,

Taller

et al. 2024

BIO Web Conf.

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There are more than 1’300 thousand hectares of fallow lands potentially suitable for agricultural producers in the Penza region of Russia, which is 31% of the region total area. More than 300000 hectares of land have been abandoned for more than 20 years, and territory already became forest. Additionally soils under young forests – actively sequester carbon dioxide in soil. How much it makes sense to raise fallow land in terms of climate change and which areas produce the most carbon dioxide from the soil is a research question of great interest. In addition to vegetation, factors such as soil moisture and temperature influence the carbon dioxide emission from soil. As a result, the greenhouse gas fluxes monitoring, we can conclude that forest areas and natural ecosystems mostly deposit carbon dioxide, as the amount of available carbon increases due to a greater increase in biomass. Areas that are used in agriculture produce more nitrous oxide and methane, but less carbon dioxide, which is associated with the specifics of fertilization.

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Effect of Interannual Difference in Weather Conditions of the Growing Season on the СO2 Emission from the Soil Surface in the Middle-Taiga Cowberry–Lichen Pine Forest (Komi Republic)

Osipov

2018

Eurasian Soil Sc.

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Seasonal and Daily Dynamics of the CO2 Emission from Soils of Pinus koraiensis Forests in the South of the Sikhote-Alin Range

Cited by 12 publications

References 13 publications

The Pulses of Soil CO2 Emission in Response to Rainfall Events in Central Siberia: Revisiting the Overall Frost-Free Season CO2 Flux

The Pulses of Soil CO2 Emission in Response to Rainfall Events in Central Siberia: Revisiting the Overall Frost-Free Season CO2 Flux

Spatially-temporal distribution of moisture content and dynamics of greenhouse gas emissions from upper soil horizons in floodplain fallow lands of Bashmakovsky district of Penza oblast

Effect of Interannual Difference in Weather Conditions of the Growing Season on the СO2 Emission from the Soil Surface in the Middle-Taiga Cowberry–Lichen Pine Forest (Komi Republic)

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