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Title: EFFECT OF SOIL PHYSICAL PROPERTIES ON N2O ISOTOPE FORMATION
EFFECT OF SOIL PHYSICAL PROPERTIES ON N2O ISOTOPE FORMATION

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Sindija Liepa; Kristaps Siltumens; Jovita Pilecka-Ulcugaceva; Inga Grinfelde; Dace Butenaite
10.5593/sgem2022/4.1/s19.41
10.5593/sgem2022/4.1
1314-2704
978-619-7603-44-6
English
22
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Air Pollution and Climate Change
In order for life to arise and exist on earth, a number of important processes take place in it, based on various elements. One of these elements is nitrogen (N). Nitrogen is the most common element in the atmosphere approximately 78% of the atmosphere consists of nitrogen gas (N2), but in this way, the majority of the living organisms cannot absorb nitrogen. Nitrogen fixation occurs during the nitrogen cycle and results in a number of complex organic compounds required for living organisms. During the nitrogen life cycle, the formation of the organic compounds required for plants results in byproducts, which may have a negative impact on the environment. One of these byproducts is N2O gas.N2O is one of the greenhouse gases. The purpose of this article is to clarify the impact of soil physical properties on the formation of N2O isotopes. The samples were collected in 28 test fields. Samples were weighed in 3 l buckets, each in 1.8 kg of soil. Two samples were from each field to allow different humidity conditions. Wetting is designed for wet aerobic and humid anaerobic soil conditions. Information on soil weight changes following soil wetting was also collected. Measurements for N2O isotopes were performed in laboratory conditions using Picarro G5131-i. The data obtained were collected and analyzed. It was concluded that not all of the resulting differences in isotope data and interlineations of N2O could be directly linked to the physical properties of the soil. Differences between the enzymatic differences of microorganisms and the effect of the population of microorganisms cannot be excluded.
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[5] Liepa S., Butenaite D., Bakute A., Grinfelde I., Pilecka-Ulcugaceva J. Composition of the isotopes of nitrous oxide in the clay soil at different moisture conditions / 21st International multidisciplinary scientific GeoConference SGEM 2021 : conference proceedings of selected papers, Albena, Bulgaria, 7-10 December, 2021 / Bulgarian Academy of Sciences Sofia, 2021 Issue 4.2 : Air Pollution and Climate Change, 59.- 66.lpp. ,
[6] Butenaite D., Grinfelde I., Pilecka-Ulcugaceva J., Vincevica-Gaile Z., Liepa S.. The nitrous oxide isotope measurements for soil samples under laboratory / 21st International multidisciplinary scientific GeoConference SGEM 2021 : proceedings, Albena, Bulgaria, 2021 / Bulgarian Academy of Sciences Ecology, Economics, Education and legislation. Sofia, 2021 Issue 5.1 : Ecology and environmental protection. Environmental economics. Education and accreditation in geosciences. Environmental legislation, multilateralrelations and funding opportunities, 941.-948.lpp. ISBN 9786197603286. ISSN 1314-2704.
The study was carried out within the framework of the implementation of the Latvian University of Life Sciences and Technologies research program. Within the funding allocated to the project P9 “The Influence of Soil Chemical Composition on GHG Emissions from Agricultural Land”.
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https://doi.org/10.5593/sgem2022/4.1/s19.41
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish 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; Turkish Acad Sci.
317-324
04 - 10 July, 2022
website
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N2O isotopes; soil moisture; Picarro G5131-i