Peer-reviewed articles 17,970 +


Sindija Liepa; Dace Butenaite; Jovita Pilecka-Ulcugaceva; Kristaps Siltumens; Inga Grinfelde
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Nitrous oxide (N2O) is one of important greenhouse gas (GHG) whose main sources are agricultural soils. N2O forms in soil as a result of microbial processes, reinforced by the use of nitrogen-containing fertilizers. This study will look at how the formation of N2O in soil is affected by soil moisture and soil granulometric composition. Soil N2O isotopes of ?15N? (central nitrogen position) and ?15N? (end nitrogen position) which could help to identify natural and anthropogenic sources of N2O emissions and the involvement of microorganisms in N2O production. N2O isotopes ?15NSP and ?15Nbulk can be traced or N2O produced by nitrification or denitrification. The study used total of 92 soil samples collected in 2020 and 2022. The study uses three types of agricultural soil with a different granulometric compositions. Soil from each agricultural plot was weighted into two samples, each of 1.5 kilograms to provide different humidity conditions – wet aerobic and wet anaerobic. The measurements were performed in a laboratory with the CRDS device Picarro G5131-i. The G5131-i analyzer measures nitrous oxide isotopes ?15N, ?15N?, ?15N?, and ?18O with an accuracy of 0.7 ‰, and N2O concentration with an accuracy of <0.05 ppb (all measurements are averaged over 10 minutes). The data processing did not use all the data obtained from the Picarro G5131-i, but was selected by evaluating the changes in N2O concentrations when the concentrations had stabilized. In this research, three types of soil were used, from which it can be concluded that the type of soil, its inherent physical properties and reaction to the moisture regime play an important role in the formation of N2O isotopes.
[1] Denk, T. R. A., Mohn, J., Decock, C., Lewicka-Szczebak, D., Harris, E., Butterbach- Bahl, K., Kiese, R., & Wolf, B. (2017). The nitrogen cycle: A review of isotope effects and isotope modeling approaches. Soil Biology and Biochemistry, 105, 121–137.
[2] Butterbach-Bahl, K., Baggs, E. M., Dannenmann, M., Kiese, R., & Zechmeister- Boltenstern, S. (2013). Nitrous oxide emissions from soils: How well do we understand the processes and their controls? In Philosophical Transactions of the Royal Society B: Biological Sciences (Vol. 368, Issue 1621).
[3] Ball, B.C., Scott, A. & Parker, J.P. 1999. Field N2O, CO2 and CH4 fluxes in relation to tillage, compaction and soil quality in Scotland. Soil & Tillage Research, 53, 29–39.
[4] Schindlbacher, A., Zechmeister-Boltenstern, S., & Butterbach-Bahl, K. (2004). Effects of soil moisture and temperature on NO, NO2, and N2O emissions from European forest soils. J. Geophys. Res, 109, 17302.
[5] Oertel, C., Matschullat, J., Zurba, K., Zimmermann, F., & Erasmi, S. (2016). Greenhouse gas emissions from soils—A review. Geochemistry, 76(3), 327–352.
[6] Zhu, X. C., Di, D. R., Ma, M. G., & Shi, W. Y. (2019). Stable isotopes in greenhouse gases from soil: A review of theory and application. Atmosphere, 10(7), 1–14. 7] Butenaite, D., Grinfelde, I., Pilecka-Ulcugaceva, J., Vincevica-Gaile, Z., & Liepa, S. (2021). THE NITROUS OXIDE ISOTOPE MEASUREMENTS FOR SOIL SAMPLES UNDER LABORATORY CONDITIONS. In International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM (Vol. 21, pp. 529–536).
[8] Wei, L., Liu, X., Qin, C., Xing, W., Gu, Y., Wang, X., Li, J. (2022). Impacts of Soil Moisture and Fertilizer on N2O Emissions from Cornfield Soil in a Karst Watershed, SW China. Atmosphere. 13(8), 1200.
[9] Lee, A., Winther, M., Prieme, A., Blunier, T., & Christensen, S. (2017). Hot spots of N2O emission move with the seasonally mobile oxic-anoxic interface in drained organic soils. Soil Biology and Biochemistry. 115, pp. 178-186.
Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 28-30 November, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-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.
28-30 November, 2023
N2O isotopes, agricultural soil, moisture, Picarro G5131-i.

24th SGEM International Conference on Earth & Planetary Sciences

International GeoConference SGEM2024
28 June - 8 July, 2024 / Albena, Bulgaria

Read More

SGEM Vienna GREEN "Green Science for Green Life"

Extended Scientific Sessions SGEM Vienna GREEN
25 - 29 November, 2024 / Vienna, Austria

Read More

A scientific platform for Art-Inspired Scientists!

The Magical World Where Science meets Art
Vienna, Austria

Read More