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Title: FORMATION OF N2O ISOTOPES IN AGRICULTURAL SOILS
FORMATION OF N2O ISOTOPES IN AGRICULTURAL SOILS

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Sindija Liepa; Dace Butenaite; Jovita Pilecka-Ulcugaceva; Kristaps Siltumens; Inga Grinfelde
10.5593/sgem2023/4.1/s19.36
10.5593/sgem2023/4.1
1314-2704
978-619-7603-59-0
English
23
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Air Pollution and Climate Change
Agricultural activity accounts for two-thirds of the total anthropogenic nitrogen oxide (N2O) emissions worldwide. Most of the N2O emissions from agricultural soils come from the use of inorganic fertilizers and/or manure. As agricultural activity intensifies worldwide, N2O emissions are currently increasing by 0.25% per year. In order to investigate the feedback of soil N2O emissions with changes in environmental conditions, an improved understanding based on the wider use of isotopic tracer methods is needed. The aim of this study is to find out the formation of N2O in agricultural soils, as well as to find out other significant influencing factors that influence the formation of isotopes. To perform the experiment in laboratory conditions, 16 mixed soil samples from different experimental plots were collected. The fields have different types of management, there are both conventional and organic fields. For each experimental plot, two soil samples were created with different moisture regimes, one container with normal moisture regime and the other with over moistened conditions, such soil regimes were chosen to create both moist aerobic and moist anaerobic conditions. Soil samples were also measured for ph. N2O isotope measurements were performed using a Picarro G5131-i instrument. Measurement data were collected, processed and further analyzed. The formation of N2O isotopes in the soil is influenced by several factors, both soil moisture and physical properties of the soil, soil ph. level and microbiological activity in the soil.
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conference
https://doi.org/10.5593/sgem2023/4.1/s19.36
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 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.
285-292
03 - 09 July, 2023
website
9204
N2O isotopes, agricultural soil, Picarro G5131-I, soil ph