Emission of CO2 from the surface of oligotrophic bogs with due account for their microrelief in the southern taiga of European Russia

Glukhova, T. V.; Vompersky, Stanislav E.; Kovalev, A. G.

doi:10.1134/s1064229314010050

Cited by 8 publications

(2 citation statements)

References 6 publications

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“…Studies of CO 2 fluxes in bogs in European Russia are rather scarce in comparison with those in Asian Russia, Central and Western Europe, Canada and Alaska (Glagolev, 2010). Many studies estimated the spread of soil emission values during the growing season in the range of 60-950 mg CO 2 × m -2 × h -1 (Smagin et al, 2000;Kurets et al, 2007;Glukhova et al, 2013;Molchanov, 2015), depending on microform types, weather conditions, as well as measurement and calculation methods. Average CO 2 balance values are from -460 mg CO 2 × m -2 × h -1 to 970 mg CO 2 × m -2 × h -1 (Miglovets et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Estimation of carbon dioxide fluxes on a ridge-hollow bog complex using a high resolution orthophotoplan

Ivanov

Kotlov

Minayeva

et al. 2021

Nature Conservation Research

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The use of unmanned aerial vehicles for detailed mapping of ecosystems has become increasingly important in recent years. As one of the main terrestrial carbon reserves, peatland ecosystems are of the great interest in obtaining highly detailed orthophotoplans. At the same time, there is a lack of publications devoted to the total carbon dioxide fluxes in each type of bog microforms. This paper presents the results of our study, which aimed to develop methods for mapping peatland microlandscapes and for estimation of integral carbon dioxide fluxes between the peatland surface and the atmosphere. Based on a highly detailed orthophotoplan compiled using unmanned aerial vehicles, we assessed the areas of major microform groups (swamps, hollows, and ridges) in a bog located in the Central Forest State Nature Biosphere Reserve (European Russia). The classification accuracy ranged from 79% to 93%. The areas of ridges, hollows, and swamps were 0.16 km 2 , 0.32 km 2 , and 0.12 km 2 , respectively. To make an integral estimation of carbon dioxide fluxes, we used earlier data on carbon dioxide emissions (ecosystem respiration), uptake (gross ecosystem exchange), and balance (net ecosystem exchange) measured by soil chamber method on representative experimental plots of respective microform types. After recalculating fluxes to areas of microforms, the integral values for different classes in the summer seasons of 2014, 2016 and 2017 were 15-91 kg CO 2 × h-1 for ecosystem respiration, 21-190 kg CO 2 × h-1 for gross ecosystem exchange, and from-122 kg CO 2 × h-1 to 41 kg CO 2 × h-1 for net ecosystem exchange. The results of the study confirmed that highly detailed orthophotoplans, obtained with the use of unmanned aerial vehicles, make it possible to distinguish the boundaries of such bog microforms as swamps, hollows and ridges with a high accuracy, despite the presence of some errors in the classification. The study of the structural and functional organisation of the bog should be carried out with considering its seasonal and interannual dynamics as well as all microform types.

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Section: Discussionmentioning

confidence: 99%

Estimation of carbon dioxide fluxes on a ridge-hollow bog complex using a high resolution orthophotoplan

Ivanov

Kotlov

Minayeva

et al. 2021

Nature Conservation Research

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“…It is difficult to establish the boundaries of catchment areas and consider all categories of waters supplying them, which makes it difficult to determine the runoff from these swamps-one of the expendable elements of the carbon balance. On the contrary, the research on fluxes of carbon-containing greenhouse gases from oligotrophic and mesotrophic (forested and open) swamps is reflected in sufficient detail in publications on the southern and middle taiga of western Siberia and the southern taiga of European Russia [38][39][40][41][42][43][44][45]. At the same time, the black alder swamps located there have not been studied at all in relation to the GHG emissions.…”

Section: Introductionmentioning

confidence: 99%

Soil Respiration in Alder Swamp (Alnus glutinosa) in Southern Taiga of European Russia Depending on Microrelief

Glukhova

Il’yasov

Vompersky

et al. 2021

Forests

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Swamp forests have been insufficiently studied yet in comparison with thoroughly examined carbon pools and greenhouse gas fluxes of peat bogs. This is primarily since the GHGs in swamp forests have huge spatial (due to the developed microrelief) and temporal variations (due to strong fluctuations in the groundwater level (GWL)). This significantly complicates their study, producing ambiguous results, especially in short-term field research. From June to October 2013–2016, we measured soil respiration (Rsoil) in an alder swamp using the static chamber method at five microsites: depression (DEP), flat surface (FL), elevations (EL), tussocks (TUS), and near-stem tussocks (STUS). We carried out a computer simulation of the total Rsoil for the season based on Rsoil measurements, monitoring of GWL, and soil temperature. In 2013–2016, the average Rsoil values (mgC m−2 h−1 ± σ) on DEP, FL, EL, TUS and STUS comprised 54 ± 50, 94 ± 72, 146 ± 89, 193 ± 96, and 326 ± 183, respectively, whereas the total Rsoil values for the season (tC ha−1 season−1 ± σ) comprised 2.0 ± 0.5, 3.5 ± 0.5, 5.3 ± 1.6, 5.4 ± 2.7, and 12.6 ± 3.2. According to the results of observations, GWL was at the level of several cm below the soil surface for most of the season. In 2014 and 2015, there were extra dry periods that led to a drop in GWL to a mark of 30–40 cm below the soil surface. Despite their short duration (2–3 weeks), these dry periods can lead to an increase in the total Rsoil for the season from 9 to 45% in the TUS–EL–STUS–FL–DEP sequence.

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Soil respiration in paludified forests of European Russia

2019

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Emission of CO2 from the surface of oligotrophic bogs with due account for their microrelief in the southern taiga of European Russia

Cited by 8 publications

References 6 publications

Estimation of carbon dioxide fluxes on a ridge-hollow bog complex using a high resolution orthophotoplan

Estimation of carbon dioxide fluxes on a ridge-hollow bog complex using a high resolution orthophotoplan

Soil Respiration in Alder Swamp (Alnus glutinosa) in Southern Taiga of European Russia Depending on Microrelief

Soil respiration in paludified forests of European Russia

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