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Title: EFFECTS OF TILLAGE SYSTEMS ON METHANE ASSIMILATION IN CAMBIC CALCISOL AND IMPLICATIONS FOR CLIMATE CHANGE MITIGATION
EFFECTS OF TILLAGE SYSTEMS ON METHANE ASSIMILATION IN CAMBIC CALCISOL AND IMPLICATIONS FOR CLIMATE CHANGE MITIGATION

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Kristine Valujeva; Jovita Pilecka-Ulcugaceva; Kristaps Siltumens; Olga Skiste; Inga Grinfelde
10.5593/sgem2024v/4.2/s18.27
10.5593/sgem2024v/4.2
1314-2704
978-619-7603-77-4
English
24
4.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Air Quality, Pollution Control, and Climate Change Mitigation
Well-aerated soils are essential for methane (CH4) uptake from the atmosphere, acting as significant sinks for this greenhouse gas, which has a global warming potential 25 times greater than that of carbon dioxide (CO2). These soils contain methanotrophic bacteria, which oxidize CH4 and thereby reduce atmospheric methane concentrations. The potential of soils to assimilate CH4 depends on factors such as soil type and moisture regime. This study investigates the ability of clay soil Cambic Calcisol to assimilate CH4. Measurements were conducted at an experimental site with two tillage systems and two crop rotations from 2018 to 2023, with observations taken every two weeks from April to October. Experimental plots under conventional tillage demonstrated a higher rate of CH4 assimilation compared to reduced tillage plots (-4.1 g CH4 ha-1 day-1 and -3.5 g CH4 ha-1 day-1, respectively). CH4 uptake by soils plays a vital role in regulating methane emissions, making soil management practices a key factor in climate change mitigation efforts. Understanding the variables influencing CH4 assimilation is crucial for optimizing land-use strategies to enhance greenhouse gas mitigation.
[1] Hansen, L.V., Br?ndholt, A., Tariq, A., Jensen, L.S., Peixoto, L.E.K., Petersen, S.O., Bruun, S. Methane uptake rates across different soil types and agricultural management practices in Denmark, Agriculture, Ecosystems & Environment 2024, 363, 108878, https://doi.org/10.1016/j.agee.2023.108878
[2] Rafalska, A., Walkiewicz, A., Osborne, B., Klumpp, K., Bieganowski, A. Variation in methane uptake by grassland soils in the context of climate change - A review of effects and mechanisms, Sci Total Environ 2023, 1:871:162127, doi: 10.1016/j.scitotenv.2023.162127
[3] Guckland, A., Flessa, H., Prenzel, J. Controls of temporal and spatial variability of methane uptake in soils of a temperate deciduous forest with different abundance of European beech (Fagus sylvaticaL.), Soil Biology & Biochemistry 2009, 41, 1659–1667. https://doi.org/DOI:10.1016/j.soilbio.2009.05.006
[4] Valujeva, K., Pilecka-Ulcugaceva, J., Skiste, O., Liepa, S., Lagzdins, A., Grinfelde, I. Soil tillage and agricultural crops affect greenhouse gas emissions from Cambic Calcisol in a temperate climate, Acta Agriculturae Scandinavica, Section B — Soil & Plant Science 2022, 72:1, 835-846, DOI: 10.1080/09064710.2022.2097123
[5] Valujeva, K., Pilecka-Ulcugaceva, Darguza, M., Siltumens, K., Lagzdins, A., Grinfelde, I. Environmental parameters and management as factors affecting greenhouse gas emissions from clay soil, Acta Agriculturae Scandinavica, Section B — Soil & Plant Science 2023, 74:1, 2290828, https://doi.org/10.1080/09064710.2023.2290828
[6] Wagner, S.W., Reicosky, D.C., Samuel Alessi, R. Regression models for calculating gas fluxes measured with a closed chamber. Agron. J. 1997, 89, 279-284.
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The data collection for this research was funded by project ‘Assessment of the Impact of Land Reclamation on the Reduction of Climate Change (Flood Risk)’, of the Ministry of Agriculture of the Republic of Latvia.
conference
https://doi.org/10.5593/sgem2024v/4.2/s18.27
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EFFECTS OF TILLAGE SYSTEMS ON METHANE ASSIMILATION IN CAMBIC CALCISOL AND IMPLICATIONS FOR CLIMATE CHANGE MITIGATION
Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 27 - 30 November, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
193-200
27 - 30 November, 2024
website
10118
conventional tillage, reduced tillage, agriculture, GHG emissions, Picarro G2508, soil

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