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Journal articles on the topic 'Soil CO2'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Wyszkowska, Jadwiga, Agata Borowik, Magdalena Zaborowska, and Jan Kucharski. "Evaluation of the Usefulness of Sorbents in the Remediation of Soil Exposed to the Pressure of Cadmium and Cobalt." Materials 15, no. 16 (2022): 5738. http://dx.doi.org/10.3390/ma15165738.

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An undesirable side effect of economic progress is increasingly severe pollution with heavy metals, responsible for the degradation of ecosystems, including soil resources. Hence, this research focused on examining six adsorbents in order to distinguish a reactive mineral with the highest capacity to remediate soils contaminated with heavy metals. To this end, the soil was polluted with Co2+ and Cd2+ by applying the metals in concentrations of 100 mg kg−1 d.m. The extent of soil equilibrium disturbances was assessed by evaluating the response of the soil microbiome, activity of seven soil enzy

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Akinyede, Rachael, Martin Taubert, Marion Schrumpf, Susan Trumbore, and Kirsten Küsel. "Temperature sensitivity of dark CO₂ fixation in temperate forest soils." Biogeosciences 19, no. 17 (2022): 4011–28. http://dx.doi.org/10.5194/bg-19-4011-2022.

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Abstract. Globally, soil temperature to 1 m depth is predicted to be up to 4 ∘C warmer by the end of this century, with pronounced effects expected in temperate forest regions. Increased soil temperatures will potentially increase the release of carbon dioxide (CO2) from temperate forest soils, resulting in important positive feedback on climate change. Dark CO2 fixation by microbes can recycle some of the released soil CO2, and CO2 fixation rates are reported to increase under higher temperatures. However, research on the influence of temperature on dark CO2 fixation rates, particularly in co

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Ramnarine, R., C. Wagner-Riddle, K. E. Dunfield, and R. P. Voroney. "Contributions of carbonates to soil CO2 emissions." Canadian Journal of Soil Science 92, no. 4 (2012): 599–607. http://dx.doi.org/10.4141/cjss2011-025.

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Ramnarine, R., Wagner-Riddle, C., Dunfield, K. E. and Voroney, R. P. 2012. Contributions of carbonates to soil CO 2 emissions. Can. J. Soil Sci. 92: 599–607. Carbon dioxide (CO2) is released in soil as a by-product of microbial and root respiration, but soil carbonates may also be a source of CO2 emissions in calcareous soils. Global estimates of inorganic carbon range from 700 to 900 Pg as carbonates stored in soils, representing a significant potential source of CO2 to the atmosphere. While previous studies have focused on the total CO2 efflux from the soil, our goal was to identify the vari

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Abdalla, Khatab, Pauline Chivenge, Philippe Ciais, and Vincent Chaplot. "No-tillage lessens soil CO<sub>2</sub> emissions the most under arid and sandy soil conditions: results from a meta-analysis." Biogeosciences 13, no. 12 (2016): 3619–33. http://dx.doi.org/10.5194/bg-13-3619-2016.

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Abstract. The management of agroecosystems plays a crucial role in the global carbon cycle with soil tillage leading to known organic carbon redistributions within soils and changes in soil CO2 emissions. Yet, discrepancies exist on the impact of tillage on soil CO2 emissions and on the main soil and environmental controls. A meta-analysis was conducted using 46 peer-reviewed publications totaling 174 paired observations comparing CO2 emissions over entire seasons or years from tilled and untilled soils across different climates, crop types and soil conditions with the objective of quantifying

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Abdalla, K., P. Chivenge, P. Ciais, and V. Chaplot. "No-tillage lessens soil CO<sub>2</sub> emissions the most under arid and sandy soil conditions: results from a meta-analysis." Biogeosciences Discussions 12, no. 18 (2015): 15495–535. http://dx.doi.org/10.5194/bgd-12-15495-2015.

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Abstract. The management of agroecosystems plays a crucial role in the global carbon cycle with soil tillage leading to known organic carbon redistributions within soils and changes in soil CO2 emissions. Yet, discrepancies exist on the impact of tillage on soil CO2 emissions and on the main soil and environmental controls. A meta-analysis was conducted using 46 peer-reviewed publications totaling 174 paired observations comparing CO2 emissions over entire seasons or years from tilled and untilled soils across different climates, crop types and soil conditions with the objective of quantifying

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Nagiyeva, Aliya, Nurlan Sergaliyev, and Anuarbek T. Bissembayev. "PSXI-21 Soil emission of carbon dioxide and behavior of microorganisms in soils of Western Kazakhstan." Journal of Animal Science 99, Supplement_3 (2021): 345–47. http://dx.doi.org/10.1093/jas/skab235.635.

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Abstract Kazakhstan Western ecosystems are intensively used in agricultural production. Assessing greenhouse gas emissions from soils, especially CO2, is important. In the upper stages, microbiology, characteristics and condition of the soil change. Biological intensity indicators are soil respiration processes, numerous microbiocenoses species composition. Soil CO2 emissions were measured 5 times monthly during three years. The CO2 flow rate from soil surface is measured by a closed dynamic chamber method with Li-8100A field respirometer. Metagenomic soil testing used bacteria DNA, archaea, r

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Sosulski, Tomasz, Tomasz Niedziński, Tamara Jadczyszyn, and Magdalena Szymańska. "Influence of Reduced Tillage, Fertilizer Placement, and Soil Afforestation on CO2 Emission from Arable Sandy Soils." Agronomy 12, no. 12 (2022): 3102. http://dx.doi.org/10.3390/agronomy12123102.

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Extreme meteorological phenomena resulting from climate change caused by anthropogenic emissions of greenhouse gases (GHG) require the implementation of CO2 mitigation practices from various industries, including agriculture. Owing to varying soil, climatic, and agrotechnical characteristics, they may have different efficiencies in mitigating soil CO2 emissions. The aim of this study was to evaluate the impact of three mitigation practices (reduced tillage, deep fertilizer placement, and soil afforestation) on CO2 emissions from sandy soils in Central and Eastern Europe allowing the prediction

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Jones, Sam P., Jérôme Ogée, Joana Sauze, et al. "Non-destructive estimates of soil carbonic anhydrase activity and associated soil water oxygen isotope composition." Hydrology and Earth System Sciences 21, no. 12 (2017): 6363–77. http://dx.doi.org/10.5194/hess-21-6363-2017.

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Abstract. The contribution of photosynthesis and soil respiration to net land–atmosphere carbon dioxide (CO2) exchange can be estimated based on the differential influence of leaves and soils on budgets of the oxygen isotope composition (δ18O) of atmospheric CO2. To do so, the activity of carbonic anhydrases (CAs), a group of enzymes that catalyse the hydration of CO2 in soils and plants, needs to be understood. Measurements of soil CA activity typically involve the inversion of models describing the δ18O of CO2 fluxes to solve for the apparent, potentially catalysed, rate of CO2 hydration. Th

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Pfanz, Hardy, Frank Saßmannshausen, Christiane Wittmann, Benny Pfanz, and Annika Thomalla. "Mofette Vegetation as an Indicator for Geogenic CO2 Emission: A Case Study on the Banks of the Laacher See Volcano, Vulkaneifel, Germany." Geofluids 2019 (August 8, 2019): 1–12. http://dx.doi.org/10.1155/2019/9589306.

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A geogenic CO2 emitting site (mofette U1) at the banks of the Laacher See, Eifel Mountains, was chosen to study the relationship between heavy postvolcanic soil degassing and vegetation during spring season. To test any interrelation between soil CO2 degassing and vegetation, soil chemism (pH, water content, conductivity, and humus content) and vegetation studies (number of species, plant-soil coverage) were performed. Geogenic soil degassing patterns of carbon dioxide and oxygen were clearly inhomogeneous, resembling soil porosity and distinct permeation channels within the soil. CO2 concentr

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Varga, Csaba. "The Effect of Soil Coverings on Soil Respiration in Sandy Soil." Acta Agraria Debreceniensis, no. 12 (November 26, 2003): 21–25. http://dx.doi.org/10.34101/actaagrar/12/3425.

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The purpose of our experiments is to study effect of different soil coverings (porous black polyethylene called agroszövet and black polyethylene) on CO2 production in sandy soil. The CO2 production was measured in our laboratory according to Witkamp (1966 cit. Szegi, 1979), after 5 days’ incubation period. Samples were taken off four times (March, May, July, September) in every year of the experiment. In May, July and September of 2000, the CO2 production was significantly higher in the control than in the treatment soil. With the exception of September, the value of CO2 production was signif

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Mosier, A. R., P. Pendall, and J. A. Morgan. "Soil-atmosphere exchange of CH<sub>4</sub>, CO<sub>2</sub>, NO<sub>x</sub>, and N<sub>2</sub>O in the Colorado Shortgrass Steppe following five years of elevated CO<sub>2</sub> and N fertilization." Atmospheric Chemistry and Physics Discussions 3, no. 3 (2003): 2691–706. http://dx.doi.org/10.5194/acpd-3-2691-2003.

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Abstract. An open-top-chamber (OTC) CO2 enrichment study was conducted in the Colorado shortgrass steppe to determine the effect of elevated CO2 (~720 mmol mol−1) on plant production, photosynthesis, and water use of this mixed C3/C4 plant community, soil nitrogen (N) and carbon (C) cycling and the impact of changes induced by \\CO2 on trace gas exchange. Weekly measurements of CO2, CH4, NOx and N2O fluxes within control (unchambered), ambient CO2 and elevated CO2 OTCs and soil water and temperature were measured at each flux measurement time from early April 1997, year round, through October

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Boros-Lajszner, Edyta, Jadwiga Wyszkowska, Agata Borowik, and Jan Kucharski. "Energetic Value of Elymus elongatus L. and Zea mays L. Grown on Soil Polluted with Ni2+, Co2+, Cd2+, and Sensitivity of Rhizospheric Bacteria to Heavy Metals." Energies 14, no. 16 (2021): 4903. http://dx.doi.org/10.3390/en14164903.

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Plants, and microorganisms associated with them, offer an effective tool for removing pollutants, such as heavy metals, from the soil environment. The aim of this study was to determine changes caused by Ni2+, Co2+, and Cd2+ in the genetic diversity of soil-populating bacteria and the effect these heavy metals on the heating value of elongated coach grass (Elymus elongatus L.) and maize (Zea mays L.). Microorganisms support plants in removing heavy metals from soil. These plants can then be used for energetic purposes. The study aim was accomplished by determining counts of microorganisms and

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Li, Dandan, Qing Liu, Huajun Yin, Yiqi Luo, and Dafeng Hui. "Differential Responses and Controls of Soil CO2 and N2O Fluxes to Experimental Warming and Nitrogen Fertilization in a Subalpine Coniferous Spruce (Picea asperata Mast.) Plantation Forest." Forests 10, no. 9 (2019): 808. http://dx.doi.org/10.3390/f10090808.

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Emissions of greenhouse gases (GHG) such as CO2 and N2O from soils are affected by many factors such as climate change, soil carbon content, and soil nutrient conditions. However, the response patterns and controls of soil CO2 and N2O fluxes to global warming and nitrogen (N) fertilization are still not clear in subalpine forests. To address this issue, we conducted an eight-year field experiment with warming and N fertilization treatments in a subalpine coniferous spruce (Picea asperata Mast.) plantation forest in China. Soil CO2 and N2O fluxes were measured using a static chamber method, and

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Guo, Linlin, Taku Nishimura, Hiromi Imoto, and Zhigang Sun. "Applicability of soil column incubation experiments to measure CO2 efflux." International Agrophysics 29, no. 4 (2015): 413–21. http://dx.doi.org/10.1515/intag-2015-0047.

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Abstract Accurate measurements of CO2 efflux from soils are essential to understand dynamic changes in soil carbon storage. Column incubation experiments are commonly used to study soil water and solute transport; however, the use of column incubation experiments to study soil CO2 efflux has seldom been reported. In this study, a 150-day greenhouse experiment with two treatments (no-tillage and tillage soils) was conducted to evaluate the applicability of soil column incubation experiments to study CO2 efflux. Both the chamber measurement and the gradient method were used, and results from the

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15

Price, Andrew J., Craig S. Charron, Arnold M. Saxton, and Carl E. Sams. "Allyl Isothiocyanate and Carbon Dioxide Produced during Degradation of Brassica juncea Tissue in Different Soil Conditions." HortScience 40, no. 6 (2005): 1734–39. http://dx.doi.org/10.21273/hortsci.40.6.1734.

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A study was conducted to quantify volatiles generated from Indian mustard (Brassica juncea L. Czerniak) tissue incorporated into soils under controlled conditions. Mustard residues were incorporated into noncovered and covered soils that varied by texture, temperature, moisture, pH, or sterility (autoclaved or nonautoclaved). Sandy loam soil had 38% more allyl isothiocyanate (AITC) than clay loam soil. AITC concentration in 45 °C soil was 81% higher than in soil at 15 °C, and 56% higher in covered compared to noncovered treatments. The microbial catabolism of AITC was suggested by the result t

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Vigricas, Egidijus, Dovilė Čiuldienė, Kęstutis Armolaitis, et al. "Total Soil CO2 Efflux from Drained Terric Histosols." Plants 13, no. 1 (2024): 139. http://dx.doi.org/10.3390/plants13010139.

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Histosols cover about 8–10% of Lithuania’s territory and most of this area is covered with nutrient-rich organic soils (Terric Histosols). Greenhouse gas (GHG) emissions from drained Histosols contribute more than 25% of emissions from the Land Use, Land Use Change and Forestry (LULUCF) sector. In this study, as the first step of examining the carbon dioxide (CO2) fluxes in these soils, total soil CO2 efflux and several environmental parameters (temperature of air and topsoil, soil chemical composition, soil moisture, and water table level) were measured in drained Terric Histosols under three

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17

Ross, DJ. "Influence of soil mineral nitrogen content on soil respiratory activity and measurements of microbial carbon and nitrogen by fumigation-incubation procedures." Soil Research 28, no. 2 (1990): 311. http://dx.doi.org/10.1071/sr9900311.

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The influence of soil mineral-N (min-N) content on rates of respiratory activity (CO2 production), and measurements of microbial biomass carbon and nitrogen by fumigation-incubation procedures, was investigated with three fertile soils and one low-fertility soil. These soils were sampled at each of the four seasons from pastures in which intensive grazing can result in high levels of min-N. Values of CO2-C flush and thin-N flush [the difference between CO2-C and min-N produced by fumigated samples and an unfumigated contl ol (or, for CO2-C only, fumigated control)] were used as indices of biom

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Susfalk, R. B., W. X. Cheng, D. W. Johnson, R. F. Walker, P. Verburg, and S. Fu. "Lateral diffusion and atmospheric CO2 mixing compromise estimates of rhizosphere respiration in a forest soil." Canadian Journal of Forest Research 32, no. 6 (2002): 1005–15. http://dx.doi.org/10.1139/x02-028.

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Measurements of rhizosphere carbon efflux are critical to the determination of soil carbon balance by CO2 flux measurements. We attempted to measure rhizosphere respiration in a forest ecosystem by transplanting 13C-enriched soils from a tallgrass prairie into a mixed-conifer forest soil but found that atmospheric air mixing and lateral diffusion confounded delta13C-CO2 measurements. Surface CO2 efflux (delta13C [Formula: see text] 20) was enriched 6 relative to soil CO2 measured at depth because of the presence of atmospheric-derived CO2 (8) near the soil surface. The delta13C-CO2 value

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Chen, Qiao. "Characteristics of soil profile CO<sub>2</sub> concentrations in karst areas and their significance for global carbon cycles and climate change." Earth System Dynamics 10, no. 3 (2019): 525–38. http://dx.doi.org/10.5194/esd-10-525-2019.

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Abstract. CO2 concentrations of 21 soil profiles were measured in Zhaotong City, Yunnan Province. The varying characteristics of soil profile CO2 concentrations are distinguishable between carbonate and noncarbonate areas. In noncarbonate areas, soil profile CO2 concentrations increase and show significant positive correlations with soil depth. In carbonate areas, however, deep-soil CO2 concentrations decrease and have no significant correlations with soil depth. Soil organic carbon is negatively correlated with soil CO2 concentrations in noncarbonate areas. In carbonate areas, such relationsh

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Koehler, B., M. D. Corre, E. Veldkamp, and J. P. Sueta. "Chronic nitrogen addition causes a reduction in soil carbon dioxide efflux during the high stem-growth period in a tropical montane forest but no response from a tropical lowland forest in decadal scale." Biogeosciences Discussions 6, no. 5 (2009): 8633–60. http://dx.doi.org/10.5194/bgd-6-8633-2009.

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Abstract. Atmospheric nitrogen (N) deposition is rapidly increasing in tropical regions. We studied the response of soil carbon dioxide CO2 efflux to long-term experimental N-addition (125 kg N ha−1 yr-1) in mature lowland and montane forests in Panamá. In the lowland forest, on soils with high nutrient-supplying and buffering capacity, fine litterfall and stem-growth were neither N- nor phosphorus-limited. In the montane forest, on soils with low nutrient supplying capacity and an organic layer, fine litterfall and stem-growth were N-limited. Our objectives were to 1) explore the influence of

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Ladegaard-Pedersen, Pernille, Bo Elberling, and Lars Vesterdal. "Soil carbon stocks, mineralization rates, and CO2 effluxes under 10 tree species on contrasting soil types." Canadian Journal of Forest Research 35, no. 6 (2005): 1277–84. http://dx.doi.org/10.1139/x05-045.

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Afforestation can increase soil organic carbon (SOC) storage, but the selection of tree species may be critical. This study explored soil CO2 production and effluxes in relation to SOC contents in temperate forests. Sites included even-aged (38 years) first generation stands of eight coniferous and two deciduous species planted at three sites along a gradient in soil fertility. SOC stocks (forest floor + mineral soil 050 cm) differed significantly between tree species, but soil type influenced SOC stocks the most. SOC stocks were significantly higher for stands on low-fertility sandy soils (1

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Maček, Irena, Damijana Kastelec, and Dominik Vodnik. "Root colonization with arbuscular mycorrhizal fungi and glomalin-related soil protein (GRSP) concentration in hypoxic soils in natural CO2 springs." Agricultural and Food Science 21, no. 1 (2012): 62–71. http://dx.doi.org/10.23986/afsci.5006.

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Changed ratios of soil gases that lead to hypoxia are most often present in waterlogged soils, but can also appear in soils not saturated with water. In natural CO2 springs (mofettes), gases in soil air differ from those in typical soils. In this study, plant roots from the mofette area Stavešinci (Slovenia) were sampled in a spatial scale and investigated for AM fungal colonization. AM fungi were found in roots from areas with high geological CO2 concentration, however mycorrhizal intensity was relatively low and no correlation between AM fungal colonization and soil pattern of CO2/O2 concent

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Koehler, B., E. Zehe, M. D. Corre, and E. Veldkamp. "An inverse analysis reveals limitations of the soil-CO<sub>2</sub> profile method to calculate CO<sub>2</sub> production for well-structured soils." Biogeosciences Discussions 7, no. 2 (2010): 1489–527. http://dx.doi.org/10.5194/bgd-7-1489-2010.

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Abstract. Soil respiration is the second largest flux in the global carbon cycle, yet the underlying belowground process, carbon dioxide (CO2) production, is not well understood because it can not be measured in the field. CO2 production has frequently been calculated from the vertical CO2 diffusive flux divergence, known as "soil-CO2 profile method". This relatively simple method requires knowledge of soil CO2 concentration profiles and soil diffusive properties. Application of the method in a tropical lowland forest soil in Panama gave inconsistent results when using diffusion coefficients (

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Wang, Peng, Licheng Shen, Xiaohong Chen та ін. "Response of soil water hydrochemistry and δ13CDIC to changes in spatio-temporal variations under different land covers in SW China karst catchment". Hydrology Research 50, № 3 (2019): 925–44. http://dx.doi.org/10.2166/nh.2019.061.

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Abstract Soil water plays a crucial role in biogeochemical processes within karst ecosystems. However, geochemical variations of soil waters under different land covers and the related karst critical zone processes are still unclear. In this study, five land covers, including grassland, dry land, shrub land, reforestation land, and bamboo land in the Qingmuguan karst area of Chongqing Municipality, Southwest (SW) China were investigated in order to better understand the spatio-temporal variations of soil water geochemistry and its controlling mechanisms. The hydrochemistry of soil water and st

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Allmanová, Zuzana, Valéria Messingerová, and Martin Jankovský. "Soil Compaction and Changes in CO2 Content in Forest Stand Soil Caused by Passage of Skidding Technology." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 62, no. 1 (2014): 7–16. http://dx.doi.org/10.11118/actaun201462010007.

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The paper was aimed on reforming on damage to soil caused by passage of universal wheeled tractors and forest wheeled tractors. We focused mainly on determining the changes in CO2 content in soil after its compaction in comparison with unimpaired soil from the stand. We carried out the measurements in municipal forests of Stará Turá, in four stands, where a regeneration felling was done. We acquired data on the depth of ruts through the method of transversal profiles took samples of soil from the ruts and unimpaired stand to determine the bulk density and moisture content. We determined the co

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Munjonji, L., K. K. Ayisi, T. P. Mafeo, T. Maphanga, and K. E. Mabitsela. "Seasonal variation in soil CO2 emission and leaf gas exchange of well‐managed commercial Citrus sinensis (L.) orchards." Plant and Soil 465, no. 1-2 (2021): 65–81. http://dx.doi.org/10.1007/s11104-021-04986-x.

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Abstract Purpose To investigate whether soil clay content, cultivar and seasonal variation have any effect on soil CO2 emission rates and leaf CO2 assimilation rates in a drip-irrigated commercial Citrus sinensis orchard. Methods The study was carried out in the field as a randomised complete block design in a 2 × 2 factorial consisting of two soil types and two citrus cultivars on a drip-irrigated commercial Citrus sinensis orchards with 2-week interval measurements of soil CO2 emission and leaf gas exchanges for a year. Results Soil clay content did not influence plant CO2 assimilation rates

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Fadil, Hussein, and Alaa Hasan Fahmi. "Biochar Enhanced Chemical and Biological Properties of Contaminated Soils with Lead." IOP Conference Series: Earth and Environmental Science 1259, no. 1 (2023): 012024. http://dx.doi.org/10.1088/1755-1315/1259/1/012024.

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Abstract Soil pollution has become a global problem due to the significant increase in the concentration of heavy elements. Lead is one of the most dangerous heavy elements cause damages to soil microorganisms and soil chemical properties. In this study the effect of adding of biochar (EFBB and WSB) with different addition rates (0%, 1% and 3%) in two soil textures (sandy loam, clay loam) contaminated with lead (500 ppm) were studies to approve the role of biochars on some soil chemical properties of soils and microorganisms activity. The results showed the amount of released CO2 has increased

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Joseph, Jobin, Christoph Külls, Matthias Arend, et al. "Application of a laser-based spectrometer for continuous in situ measurements of stable isotopes of soil CO<sub>2</sub> in calcareous and acidic soils." SOIL 5, no. 1 (2019): 49–62. http://dx.doi.org/10.5194/soil-5-49-2019.

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Abstract. The short-term dynamics of carbon and water fluxes across the soil–plant–atmosphere continuum are still not fully understood. One important constraint is the lack of methodologies that enable simultaneous measurements of soil CO2 concentration and respective isotopic composition at a high temporal resolution for longer periods of time. δ13C of soil CO2 can be used to derive information on the origin and physiological history of carbon, and δ18O in soil CO2 aids in inferring the interaction between CO2 and soil water. We established a real-time method for measuring soil CO2 concentrat

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Chen, Syuan-Lu, and Cheng-Hua Huang. "Effects of Azotobacter and Carbon Dioxide Concentrations on the Growth and Yield of Rice Plants Grown in Two Paddy Soils." Agronomy 13, no. 12 (2023): 2998. http://dx.doi.org/10.3390/agronomy13122998.

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Rice is an important staple crop influenced by rising CO2 and related climate change, but it is not well-known how N-fixing Azotobacter affects rice growth and yield under different CO2 concentrations. This study aimed to determine the effects of Azotobacter strains on the growth and yield of rice plants grown in two paddy soils under varying CO2 conditions. Rice plants inoculated with three Azotobacter strains were grown in a conventional rice soil (Dali) and an organic rice soil (Houlong) under 500 or 1000 ppm CO2. These three Azotobacter strains significantly increased the harvest index of

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Liu, X. P., W. J. Zhang, C. S. Hu, and X. G. Tang. "Soil greenhouse gas fluxes from different tree species on Taihang Mountain, North China." Biogeosciences 11, no. 6 (2014): 1649–66. http://dx.doi.org/10.5194/bg-11-1649-2014.

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Abstract. The objectives of this study were to investigate seasonal variation of greenhouse gas fluxes from soils on sites dominated by plantation (Robinia pseudoacacia, Punica granatum, and Ziziphus jujube) and natural regenerated forests (Vitex negundo var. heterophylla, Leptodermis oblonga, and Bothriochloa ischcemum), and to identify how tree species, litter exclusion, and soil properties (soil temperature, soil moisture, soil organic carbon, total N, soil bulk density, and soil pH) explained the temporal and spatial variation in soil greenhouse gas fluxes. Fluxes of greenhouse gases were

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Mosier, A. R., E. Pendall, and J. A. Morgan. "Effect of water addition and nitrogen fertilization on the fluxes of CH<sub>4</sub>, CO<sub>2</sub>, NO<sub>x</sub>, and N<sub>2</sub>O following five years of elevated CO<sub>2</sub> in the Colorado Shortgrass Steppe." Atmospheric Chemistry and Physics 3, no. 5 (2003): 1703–8. http://dx.doi.org/10.5194/acp-3-1703-2003.

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Abstract. An open-top-chamber (OTC) CO2 enrichment (~720 mmol mol-1) study was conducted in the Colorado shortgrass steppe from April 1997 through October 2001. Aboveground plant biomass increased under elevated CO2 and soil moisture content was typically higher than under ambient CO2 conditions. Fluxes of CH4, CO2, NOx and N2O, measured weekly year round were not significantly altered by CO2 enrichment over the 55 month period of observation. During early summer of 2002, following the removal of the open-top-chambers from the CO2 enrichment sites in October 2001, we conducted a short term stu

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Brandão, Adilson Amorim, Eduardo Guimarães Couto, Renato de Aragão Ribeiro Rodrigues, Oscarlina Lúcia dos Santos Weber, and Osvaldo Borges Pinto Júnior. "Soil CO2 emission in ‘Tifton 85’ bermudagrass pasture fertilized with liquid pig slurry." MAY 2021, no. 15(05):2021 (May 10, 2021): 661–68. http://dx.doi.org/10.21475/ajcs.21.15.05.p2959.

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The application of liquid pig slurry (LPS) to pastures offers potential as a fertilizer but could have a direct influence on soil CO2 emissions. This study evaluated soil carbon dioxide emissions after successive LPS applications to soils under pasture cultivation. The experiment was carried out on ‘Tifton-85’ bermudagrass pasture cultivated in a red-yellow oxisol soil in the municipality of Lucas do Rio Verde-MT, Brazil. Two treatments were evaluated: the control and an application of 20 m3 ha-1 of LPS after each cut of the pasture. The CO2 emissions from the soil were determined using a high

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Urbanek, Emilia, and Stefan H. Doerr. "CO<sub>2</sub> efflux from soils with seasonal water repellency." Biogeosciences 14, no. 20 (2017): 4781–94. http://dx.doi.org/10.5194/bg-14-4781-2017.

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Abstract. Soil carbon dioxide (CO2) emissions are strongly dependent on pore water distribution, which in turn can be modified by reduced wettability. Many soils around the world are affected by soil water repellency (SWR), which reduces infiltration and results in diverse moisture distribution. SWR is temporally variable and soils can change from wettable to water-repellent and vice versa throughout the year. Effects of SWR on soil carbon (C) dynamics, and specifically on CO2 efflux, have only been studied in a few laboratory experiments and hence remain poorly understood. Existing studies su

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Adekanmbi, Adetunji Alex, Liz J. Shaw, and Tom Sizmur. "Effect of Sieving on Ex Situ Soil Respiration of Soils from Three Land Use Types." Journal of Soil Science and Plant Nutrition 20, no. 3 (2020): 912–16. http://dx.doi.org/10.1007/s42729-020-00177-2.

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AbstractThis study aims to investigate the effect of sieving on ex situ soil respiration (CO2 flux) measurements from different land use types. We collected soils (0–10 cm) from arable, grassland and woodland sites, allocated them to either sieved (4-mm mesh, freshly sieved) or intact core treatments and incubated them in gas-tight jars for 40 days at 10 °C. Headspace gas was collected on days 1, 3, 17, 24, 31 and 38 and CO2 analysed. Our results showed that sieving (4 mm) did not significantly influence soil respiration measurements, probably because micro aggregates (< 0.25 mm) remain int

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Koehler, B., M. D. Corre, E. Veldkamp, and J. P. Sueta. "Chronic nitrogen addition causes a reduction in soil carbon dioxide efflux during the high stem-growth period in a tropical montane forest but no response from a tropical lowland forest on a decadal time scale." Biogeosciences 6, no. 12 (2009): 2973–83. http://dx.doi.org/10.5194/bg-6-2973-2009.

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Abstract. Atmospheric nitrogen (N) deposition is rapidly increasing in tropical regions. We studied the response of soil carbon dioxide (CO2) efflux to long-term experimental N addition (125 kg N ha−1 yr−1) in mature lowland and montane forests in Panama. In the lowland forest, on soils with high nutrient-supplying and buffering capacity, fine litterfall and stem-growth were neither N- nor phosphorus-limited. In the montane forest, on soils with low nutrient supplying capacity and an organic layer, fine litterfall and stem-growth were N-limited. Our objectives were to 1) explore the influence

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Hu, Enzhu, Zhimin Ren, Sheng Xu, and Weiwei Zhang. "Elevated Tropospheric Ozone Concentration Alters Soil CO2 Emission: A Meta-Analysis." Sustainability 13, no. 8 (2021): 4571. http://dx.doi.org/10.3390/su13084571.

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Elevated tropospheric ozone (O3) concentration may substantially influence the below-ground processes of terrestrial ecosystems. Nevertheless, a comprehensive and quantitative understanding of O3 impacts on soil CO2 emission remains elusive, making the future sources or sinks of soil C uncertain. In this study, 77 pairs of observations (i.e., elevated O3 concentration treatment versus control) extracted from 16 peer-reviewed studies were synthesized using meta-analysis. The results depicted that soil CO2 efflux was significantly reduced under short-term O3 exposure (≤1 year, p < 0.05), whil

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Xu, Jiaxing, Derrick Y. F. Lai, and Suvadip Neogi. "Effects of Land Use Types on CH4 and CO2 Production Potentials in Subtropical Wetland Soils." Water 12, no. 7 (2020): 1856. http://dx.doi.org/10.3390/w12071856.

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Changes in land use types can alter the soil and environmental characteristics of wetlands, which in turn influence the magnitude of greenhouse gas production by soil microbes. However, the effects of land use change on the production potential of methane (CH4) and carbon dioxide (CO2) in subtropical wetland soils and the underlying controls are still largely unknown. In this study, we examined the soil CH4 and CO2 production potentials under five different land use types (natural mangrove, Gei Wai water channel, Gei Wai forest, reedbed, and freshwater pond) and their relationships with soil p

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Wiaux, F., M. Vanclooster, and K. Van Oost. "Vertical partitioning and controlling factors of gradient-based soil carbon dioxide fluxes in two contrasted soil profiles along a loamy hillslope." Biogeosciences 12, no. 15 (2015): 4637–49. http://dx.doi.org/10.5194/bg-12-4637-2015.

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Abstract. In this study we aim to elucidate the role of physical conditions and gas transfer mechanism along soil profiles in the decomposition and storage of soil organic carbon (OC) in subsoil layers. We use a qualitative approach showing the temporal evolution and the vertical profile description of CO2 fluxes and abiotic variables. We assessed soil CO2 fluxes throughout two contrasted soil profiles (i.e. summit and footslope positions) along a hillslope in the central loess belt of Belgium. We measured the time series of soil temperature, soil moisture and CO2 concentration at different de

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Nevedrov, Nikolay, Marina Protasova, Natalya Balabina, and Elena Dovidovich. "Ecological assessment of spatial heterogeneity and temporal variability of CO2 soil fluxes in ecosystems of various types (on the example of the Kursk region)." АгроЭкоИнфо 4, no. 58 (2023): 7. http://dx.doi.org/10.51419/202134407.

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The article presents data on the rate of carbon dioxide fluxes from the soil surface of forest, meadow communities and agroecosystems of the Kursk region. The rate of CO2 soil fluxes was estimated using the chamber method. It was established that in June CO2 emission from the soil surface of forest ecosystems varied from 10.2 to 41.7 g CO2 m-2 day-1, from the soil surface of agroecosystems – from 8.2 to 10.6 g CO2 m-2 day-1, and from the soils of meadow ecosystems it reached 37.7 g CO2 m-2 day-1. It was revealed that the rate of soil CO2 fluxes in oak forests was higher than in the community o

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Zhu, Yulin, Xinghao Tang, Yunpeng Huang, Jing Jiang, and Xiong Fang. "Response of Soil CO2 Emission to Addition of Biochar and Dissolved Organic Carbon along a Vegetation Restoration Gradient of Subtropical China." Forests 15, no. 5 (2024): 753. http://dx.doi.org/10.3390/f15050753.

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Biochar, as a soil amendment, has been widely confirmed to increase soil carbon sequestration. However, how biochar addition affects soil carbon changes during the vegetation restoration process is still unclear, which constrains our ability to explore biochar’s application in the technology of soil carbon sequestration in forests. We conducted an incubation experiment on biochar and dissolved organic matter (DOM) addition to soil at three stages of revegetation (degraded land (DS), plantation forest (PS), and secondary natural forest (NS) in Changting County in Fujian province, China) to inve

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Baumgartner, Simon, Matti Barthel, Travis William Drake, et al. "Seasonality, drivers, and isotopic composition of soil CO<sub>2</sub> fluxes from tropical forests of the Congo Basin." Biogeosciences 17, no. 23 (2020): 6207–18. http://dx.doi.org/10.5194/bg-17-6207-2020.

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Abstract. Soil respiration is an important carbon flux and key process determining the net ecosystem production of terrestrial ecosystems. To address the lack of quantification and understanding of seasonality in soil respiration of tropical forests in the Congo Basin, soil CO2 fluxes and potential controlling factors were measured annually in two dominant forest types (lowland and montane) of the Congo Basin over 2 years at varying temporal resolution. Soil CO2 fluxes from the Congo Basin resulted in 3.45 ± 1.14 and 3.13 ± 1.22 µmol CO2 m−2 s−1 for lowland and montane forests, respectively. S

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Karaklić, Velisav, Miljan Samardžić, Saša Orlović, et al. "Effect of Stand Age on Soil CO2 Emissions in Pedunculate Oak (Quercus robur L.) Forests." Forests 15, no. 9 (2024): 1574. http://dx.doi.org/10.3390/f15091574.

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The emission of CO2 from soil represents one of the most significant fluxes between terrestrial ecosystems and the atmosphere. It is crucial to investigate the impact of stand age on soil CO2 emissions in order to evaluate the possibility of carbon sequestration through the establishment of new forests. In this study, soil CO2 emissions and microclimate variables (soil temperature and moisture) were investigated in the chronosequence of three differently aged stands (4-, 14-, and 70-year-old stands) in floodplain pedunculate oak (Quercus robur L.) forests in Serbia. This study highlights how t

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Billings, S. A., D. D. Richter, and J. Yarie. "Soil carbon dioxide fluxes and profile concentrations in two boreal forests." Canadian Journal of Forest Research 28, no. 12 (1998): 1773–83. http://dx.doi.org/10.1139/x98-145.

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Because a large fraction of the world's carbon exists in the soil of boreal forests, understanding how soil temperature and moisture affect soil respiration is vital for predicting soil response to climate change. We measured soil respiration and CO2 concentrations within soils of floodplain and upland forests in interior Alaska from 1996 to 1997. At each site, a 0.10-ha-area shelter was constructed that prevents summer precipitation from infiltrating into the soil. Measurements of soil profile CO2, soil respiration, soil temperature, and soil moisture were made inside (treatment) and outside

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Morote, Francisco Antonio García, Manuela Andrés Abellán, Eva Rubio, et al. "Productivity and Seasonality Drive Total Soil Respiration in Semi-Arid Juniper Woodlands (Juniperus thurifera L., Southern Spain)." Forests 13, no. 4 (2022): 538. http://dx.doi.org/10.3390/f13040538.

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We analyzed the relationship between forest productivity (joint effect of forest maturity and soil quality) and total soil respiration (µmol CO2 m−2 s−1) in semi-arid juniper woodlands (young woodlands growing in abandoned farmlands with deeper soils, and mature woodlands in lithic soils), and investigated the seasonal variation in soil CO2 efflux as a function of soil temperature and the soil water content. We measured the soil CO2 efflux from twelve cylinders in the soil over a three-year period using LI-6400 equipment. The results show that, in the more productive site (young woodland), soi

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Gamnitzer, U., A. B. Moyes, D. R. Bowling, and H. Schnyder. "Measuring and modelling the isotopic composition of soil respiration: insights from a grassland tracer experiment." Biogeosciences 8, no. 5 (2011): 1333–50. http://dx.doi.org/10.5194/bg-8-1333-2011.

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Abstract. The carbon isotopic composition (δ13C) of CO2 efflux (δ13Cefflux) from soil is generally interpreted to represent the actual isotopic composition of the respiratory source (δ13CRs). However, soils contain a large CO2 pool in air-filled pores. This pool receives CO2 from belowground respiration and exchanges CO2 with the atmosphere (via diffusion and advection) and the soil liquid phase (via dissolution). Natural or artificial modification of δ13C of atmospheric CO2 (δ13Catm) or δ13CRs causes isotopic disequilibria in the soil-atmosphere system. Such disequilibria generate divergence

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Jeffary, Alicia Vanessa, Ahmed Osumanu Haruna, Roland Kueh Jui Heng, Liza Nuriati Lim Kim Choo, and Latifah Omar. "Horizontal and Vertical Emissions of Carbon Dioxide and Methane from a Tropical Peat Soil Cultivated with Pineapple (Ananas comosus (L.) Merr.)." Sustainable Agriculture Research 8, no. 3 (2019): 1. http://dx.doi.org/10.5539/sar.v8n3p1.

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Peat soils have been developed for large scale plantations such as oil palm due to their positive contribution to Malaysia&rsquo;s economic growth in agriculture sector. However, these developments contribute to the emissions of greenhouse gases (GHGs) mainly carbon (CO2) and methane (CH4). To date, there were limited information of GHGs emissions from pineapple cultivation and also inadequate data on horizontally and vertically soil GHGs emissions in peat soil profile. Thus, this study was carried out to determine carbon CO2 and CH4 emissions horizontally and vertically from a drained tro

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Schwendenmann, Luitgard, and Cate Macinnis-Ng. "Soil CO<sub>2</sub> efflux in an old-growth southern conifer forest (<i>Agathis australis</i>) – magnitude, components and controls." SOIL 2, no. 3 (2016): 403–19. http://dx.doi.org/10.5194/soil-2-403-2016.

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Abstract. Total soil CO2 efflux and its component fluxes, autotrophic and heterotrophic respiration, were measured in a native forest in northern Aotearoa–New Zealand. The forest is dominated by Agathis australis (kauri) and is on an acidic, clay rich soil. Soil CO2 efflux, volumetric soil water content and soil temperature were measured bi-weekly to monthly at 72 sampling points over 18 months. Trenching and regression analysis was used to partition total soil CO2 efflux into heterotrophic and autotrophic respiration. The effect of tree structure was investigated by calculating an index of lo

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Bovsun, Mariia A., Simona Castaldi, Olga V. Nesterova, et al. "Effect of Biochar on Soil CO2 Fluxes from Agricultural Field Experiments in Russian Far East." Agronomy 11, no. 8 (2021): 1559. http://dx.doi.org/10.3390/agronomy11081559.

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Agricultural soils are a major source of greenhouse gases. Biochar is a soil improver and, when applied to the soil, sequesters carbon. However, a different combination of soil and climatic conditions and biochar leads to different research results. In this research, the effects of 1 kg/m2 and 3 kg/m2 biochar application to clay soils on the CO2 flow in field experiments along two cropping seasons in the Russian Far East were investigated. Data showed that biochar significantly reduces the cumulative flow of soil CO2, compared with untreated field plots. In 2018, the greatest reduction in soil

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Bramble, De, Gregory Gouveia, and Ravindra Ramnarine. "Organic Residues and Ammonium Effects on CO2 Emissions and Soil Quality Indicators in Limed Acid Tropical Soils." Soil Systems 3, no. 1 (2019): 16. http://dx.doi.org/10.3390/soilsystems3010016.

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Aglime (agricultural lime), commonly applied to acid soils to increase the soil pH and productivity, may lead to the release of CO2 into the atmosphere or to carbon (C) sequestration, although the processes involved are not fully understood. As large acreages of arable land are limed annually, exploring soil management practices that reduce aglime-induced CO2 emissions from acid soils while maintaining or improving the soil quality is paramount to mitigating the effects of global climate change. This study, therefore, assessed the effects of organic residues and ammonium on CO2 emissions and s

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Hagedorn, Frank, Ana Moeri, Lorenz Walthert, and Stephan Zimmermann. "Kohlenstoff in Schweizer Waldböden – bei Klimaerwärmung eine potenzielle CO2-Quelle | Soil organic carbon in Swiss forest soils – a potential CO2 source in a warming climate." Schweizerische Zeitschrift fur Forstwesen 161, no. 12 (2010): 530–35. http://dx.doi.org/10.3188/szf.2010.0530.

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Soils contain the largest carbon stocks of terrestrial ecosystems. The expected climatic warming may turn soils into a CO2 source by increasing the mineralization of soil organic matter. However, changes in soil carbon (C) are hardly detectable because the expected changes within some years are much smaller than the large amounts of C stored in soils. Our approach was to quantify changes in soil C storage along natural climatic gradients by comparing C stocks of more than 250 soil profiles at different altitudes across Swiss forest ecosystems. In addition, we studied the response of soil CO2 e

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