Soil respiration at forest sites in Saxony (Central Europe)

Oertel, Cornelius; Matschullat, Jörg; Andreae, Henning; Drauschke, Thomas; Schröder, Carolin; Winter, Christian

doi:10.1007/s12665-015-4241-x

Cited by 8 publications

(4 citation statements)

References 16 publications

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“…Mean SR fluxes at our forest sites are within the same order of magnitude as those measured at a 15‐year‐old spruce forest in Ireland, a temperate mixed forest in Germany, and a beech forest in Romania (Saiz et al., 2006; Oertel et al., 2015; Hereș et al., 2021; Table S5 in Supporting Information ). Our forest fluxes are also comparable with those reported from a pine forest in Canada (Peichl et al., 2010).…”

Section: Discussionsupporting

confidence: 68%

Number of Chamber Measurement Locations for Accurate Quantification of Landscape‐Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

et al. 2022

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Carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) are potent greenhouse gases (GHGs) driving global climate change. The atmospheric concentrations of these GHGs have increased by approximately 40%, 150%, and 20%, respectively, since the pre-industrial era (IPCC, 2013). This increase has been primarily attributed to anthropogenic activities, including agriculture expansion and intensification and other land use

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Section: Discussionsupporting

confidence: 68%

Number of Chamber Measurement Locations for Accurate Quantification of Landscape‐Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

et al. 2022

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“…The range of annual CO 2 efflux rates of 517 (±126) g C m −2 a −1 for the beech site and 559 (±78) g C m −2 a −1 for the pine site (Figure 3 and Table 3) is consistent with other studies from forests under comparable site conditions (Borken et al, 2002;Elberling and Ladegaard-Pedersen, 2005;Subke et al, 2006;Brumme et al, 2009;Phillips et al, 2010;Jurasinski et al, 2012;Goffin et al, 2014;Oertel et al, 2015;Wordell-Dietrich et al, 2020). Although the CO 2 efflux over the entire period does not differ between the two forest sites, significant differences can be observed for each year-with higher CO 2 efflux at the beech site only in the wet year of 2017 and lower CO 2 efflux in all other years.…”

Section: Tree Species Effectssupporting

confidence: 89%

Dynamics of Soil CO2 Efflux and Vertical CO2 Production in a European Beech and a Scots Pine Forest

Jochheim¹,

Wirth²,

Gartiser³

et al. 2022

Front. For. Glob. Change

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The conversion of coniferous forest to deciduous forest is accompanied by changes in the vertical distribution of fine roots and soil organic carbon (SOC) content. It is unclear how these changes affect soil CO2 efflux and vertical soil CO2 production, considering changing climate. Here, we present the results of a 6-year study on CO2 efflux, covering relatively warm-dry and cool-wet years. A combination of the flux-gradient method and closed chamber measurements was used to study the CO2 efflux and the vertical distribution of soil CO2 production in a beech (Fagus sylvatica L.) and a pine (Pinus sylvestris L.) forest in northeast Germany. We observed, on average, similar CO2 efflux with 517 (±126) and 559 (±78) g C m–2 a–1 for the beech site and the pine site, respectively. CO2 efflux at the beech site exceeded that at the pine site during the wet year 2017, whereas in dry years, the opposite was the case. Water availability as indicated by precipitation was the primary determining long-term factor of CO2 efflux, whereas seasonal variation was mainly affected by soil temperature, and—in the case of beech—additionally by soil water content. CO2 efflux decreased more dramatically (-43%) at the beech site than at the pine site (-22%) during the warm-dry year 2018 compared to the cool-wet year 2017. We assumed that drought reduces heterotrophic respiration (Rh) at both sites, but additionally decreases autotrophic respiration (Ra) at the beech stand. Soil CO2 production at the beech site ranged over a greater soil depth than at the pine site, attributed to different fine root distribution. The organic layer and the A horizon contributed 47 and 68% of total CO2 efflux at the beech site and the pine site, respectively. The seasonal patterns of different CO2 efflux between both sites were assumed to relate to different phases of tree physiological activity of deciduous compared to evergreen tree species.

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“…Mean SR fluxes at our forest sites are within the same order of magnitude as those measured at a 15-year-old spruce forest in Ireland, a temperate mixed forest in Germany, and a beech forest in Romania (Saiz et al, 2006;Oertel et al, 2015;Hereș et al, 2021; Table S5 in Supporting Information S1). Our forest fluxes are also comparable with those reported from a pine forest in Canada (Peichl et al, 2010).…”

Section: Forest (Soil Respiration)supporting

confidence: 62%

Number of Chamber Measurement Locations for Accurate Quantification of Landscape-Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

Wangari

Mwanake

Kraus

et al. 2023

Preprint

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Accurate quantification of landscape soil greenhouse gas (GHG) exchange from chamber measurements is challenging due to the high spatial-temporal variability of fluxes, which results in large uncertainties in upscaled regional and global flux estimates. We quantified landscape-scale (6 km2 in central Germany) soil/ecosystem respiration (SR/ER-CO2), methane (CH4), and nitrous oxide (N2O) fluxes at stratified sites with contrasting landscape characteristics using the fast-box chamber technique. We assessed the influence of land use (forest, arable, and grassland), seasonality (spring, summer, and autumn), soil types, and slope on the fluxes. We also evaluated the number of chamber measurement locations required to estimate landscape fluxes within globally significant uncertainty thresholds. The GHG fluxes were strongly influenced by seasonality and land use rather than soil type and slope. The number of chamber measurement locations required for robust landscape-scale flux estimates depended on the magnitude of fluxes, which varied with season, land use, and GHG type. Significant N2O-N flux uncertainties greater than the global mean flux (0.67 kg ha&#8722;1 yr&#8722;1) occurred if landscape measurements were done at <4 and <22 chamber locations (per km2) in forest and arable ecosystems, respectively, in summer. For CO2 and CH4 fluxes, uncertainties greater than the global median CO2-C flux (7,500 kg ha&#8722;1 yr&#8722;1) and the global mean forest CH4-C uptake rate (2.81 kg ha&#8722;1 yr&#8722;1) occurred at <2 forest and <6 arable chamber locations. This finding suggests that more chamber measurement locations are required to assess landscape-scale N2O fluxes than CO2 and CH4, based on these GHG-specific uncertainty thresholds.

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Soil respiration at forest sites in Saxony (Central Europe)

Cited by 8 publications

References 16 publications

Number of Chamber Measurement Locations for Accurate Quantification of Landscape‐Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

Number of Chamber Measurement Locations for Accurate Quantification of Landscape‐Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

Dynamics of Soil CO2 Efflux and Vertical CO2 Production in a European Beech and a Scots Pine Forest

Number of Chamber Measurement Locations for Accurate Quantification of Landscape-Scale Greenhouse Gas Fluxes: Importance of Land Use, Seasonality, and Greenhouse Gas Type

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