Net ecosystem exchange and energy fluxes measured with the eddy covariance technique in a western Siberian bog

Alekseychik, Pavel; Mammarella, Ivan; Karpov, Dmitry; Dengel, Sigrid; Terentieva, Irina; Сабреков, А. Ф.; Glagolev, M. V.; Лапшина, Е. Д.

doi:10.5194/acp-17-9333-2017

Cited by 41 publications

(43 citation statements)

References 44 publications

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“…The field station is a part of the International Network for Terrestrial Research and Monitoring in the Arctic (INTERACT, eu-interact.org) and is actively used by Russian and foreign scientists for studies of the functioning of mire ecosystems. Over the past years, the Mukhrino bog was the main object of numerous experimental study of GHG fluxes (Glagolev et al 2011;Alekseychik et al 2017), geochemistry and physical, chemical, and biochemical properties of peat (Stepanova and Pokrovsky 2011;Szajdak et al 2016), mire hydrology (Bleuten and Filippov 2008), and microbiology including mycology (Filippova et al 2015).…”

Section: Methodsmentioning

confidence: 99%

“…The Mukhrino bog (60°54´N, 68°42´E) is located at the eastern terrace of the Irtysh River 20 km to the south from the point of its confluence with the Ob River, in the middle taiga zone of the West Siberian Lowland (Alekseychik et al 2017 (Alekseychik et al 2017). Automated monitoring of carbon dioxide fluxes at oligotrophic ridge-hollow complex was performed in 2017-2018 using the portable atmospheric soil measuring system (ASMS) with two transparent chambers.…”

Section: Methodsmentioning

confidence: 99%

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Net Ecosystem Exchange, Gross Primary Production And Ecosystem Respiration In Ridge-Hollow Complex At Mukhrino Bog

Dyukarev

Godovnikov²,

Karpov³

et al. 2019

GES

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The continuous field measurements of net ecosystem exchange (NEE) of CO 2 were provided at ridge-hollow oligotrophic bog in the Middle Taiga zone of West Siberia, Russia in 2017-2018. The model of net ecosystem exchange of CO 2 was suggested to describe the influence of different environmental factors on NEE and to estimate the total carbon budget of the bog over the growing season. The model uses air and soil temperature, incoming photosynthetically active radiation (PAR) and water table depth, as the key factors influencing gross primary production (GPP) and ecosystem respiration (ER). The model coefficients were calibrated using the data collected by automated soil CO 2 flux system with two transparent long-term chambers placed at large hollow and small ridge sites. Experimental and modeling results showed that the Mukhrino bog acted over the study period as a carbon sink, with an average NEE of-87.7 gC m-2 at the hollow site and-50.2 gC m-2 at the ridge site. GPP was-344.8 and-228.5 gC m-2 whereas ER was 287.6 and 140.9 gC m-2 at ridge and hollow sites, respectively. Despite of a large difference in NEE estimates between 2017 and 2018 the growing season variability of NEE were quite similar.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Net Ecosystem Exchange, Gross Primary Production And Ecosystem Respiration In Ridge-Hollow Complex At Mukhrino Bog

Dyukarev

Godovnikov²,

Karpov³

et al. 2019

GES

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“…The flux footprints were calculated for each flight after Kormann and Meixner (2001) (for details see Alekseychik et al 2017b).…”

Section: Ground-based Measurementsmentioning

confidence: 99%

Eddies in motion: visualizing boundary-layer turbulence above an open boreal peatland using UAS thermal videos

Alekseychik¹,

Katul²,

Korpela³

et al. 2020

Preprint

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Abstract. High resolution thermal infrared (TIR) imaging is opening up new vistas in biosphere-atmosphere heat exchange studies. The rapidly developing unmanned aerial systems (UAS) and specially designed TIR cameras offer opportunities for TIR survey with increasingly high resolution, reduced noise, prolonged flight times and better gimbals. A state-of-the-art science platform is assembled using a Matrice 210 V2 drone equipped with a Zenmuse XT2 thermal camera and deployed over a pristine boreal peatland with the aim to test its performance in a heterogeneous ecosystem with short vegetation. The study utilizes the capability of the UAS platform to hover for prolonged times (about 20 min) whilst recording high-frequency (1–30 Hz) TIR videos. A methodology to derive thermal signatures of near-ground coherent turbulent structures impinging on the land surface, surface temperature spectra and heat fluxes from the retrieved videos is developed. The size, residence time and movement of the coherent structures are computed from the surface temperature maps, and their dependency on atmospheric conditions is examined. A ground-based eddy-covariance system and a collocated meteorological setup are used for reference.

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“…West E. Dyukarev et al: Hydrometeorological dataset of West Siberian boreal peatland Siberian peatlands are wetlands representing a long-term carbon dioxide sink and global methane source since the early Holocene (Sheng et al, 2004). Peatlands clearly play a significant role in global carbon cycling, and the carbon they store is increasingly vulnerable to perturbations from climate and land-use change (Amesbury et al, 2019). Temperature is the most important long-term driver of peat accumulation in northern peatlands, and excessive moisture is deemed a necessary condition for peatland development, maintenance, and carbon preservation (Loisel et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Hydrometeorological dataset of West Siberian boreal peatland: a 10-year record from the Mukhrino field station

Dyukarev

Filippova

Karpov

et al. 2021

Earth Syst. Sci. Data

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Abstract. Northern peatlands represent one of the largest carbon pools in the biosphere, but the carbon they store is increasingly vulnerable to perturbations from climate and land-use change. Meteorological observations taken directly at peatland areas in Siberia are unique and rare, while peatlands are characterized by a specific local climate. This paper presents a hydrological and meteorological dataset collected at the Mukhrino peatland, Khanty-Mansi Autonomous Okrug – Yugra, Russia, over the period of 8 May 2010 to 31 December 2019. Hydrometeorological data were collected from stations located at a small pine–shrub–Sphagnum ridge and Scheuchzeria–Sphagnum hollow at ridge–hollow complexes of ombrotrophic peatland. The monitored meteorological variables include air temperature, air humidity, atmospheric pressure, wind speed and direction, incoming and reflected photosynthetically active radiation, net radiation, soil heat flux, precipitation (rain), and snow depth. A gap-filling procedure based on the Gaussian process regression model with an exponential kernel was developed to obtain continuous time series. For the record from 2010 to 2019, the average mean annual air temperature at the site was −1.0 ∘C, with the mean monthly temperature of the warmest month (July) recorded as 17.4 ∘C and for the coldest month (January) −21.5 ∘C. The average net radiation was about 35.0 W m−2, and the soil heat flux was 2.4 and 1.2 W m−2 for the hollow and the ridge sites, respectively. The presented data are freely available through Zenodo (https://doi.org/10.5281/zenodo.4323024, Dyukarev et al., 2020), last access: 15 December 2020) and can be used in coordination with other hydrological and meteorological datasets to examine the spatiotemporal effects of meteorological conditions on local hydrological responses across cold regions.

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Net ecosystem exchange and energy fluxes measured with the eddy covariance technique in a western Siberian bog

Cited by 41 publications

References 44 publications

Net Ecosystem Exchange, Gross Primary Production And Ecosystem Respiration In Ridge-Hollow Complex At Mukhrino Bog

Net Ecosystem Exchange, Gross Primary Production And Ecosystem Respiration In Ridge-Hollow Complex At Mukhrino Bog

Eddies in motion: visualizing boundary-layer turbulence above an open boreal peatland using UAS thermal videos

Hydrometeorological dataset of West Siberian boreal peatland: a 10-year record from the Mukhrino field station

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