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Kristine Valujeva

3 linked publication records · Latvia University of Life Sciences and Technologies

Author: Kristine ValujevaYear: 2024clear all
Showing 1-3 of 3 records
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24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Energy and Clean Technologies, Vol 24, Issue 4.1
Publication

ASSESSMENT OF HEAVY METAL POLLUTION IN SNOW SAMPLES COLLECTED AT VARIOUS DISTANCES FROM ROAD SECTIONS: CASE STUDY JELGAVA

(STEF92 Technology, 2024-11-01, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Sindija Liepa, Oskars Purmalis, Inga Grīnfelde)

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The increasing flow of traffic passing through cities on a daily basis, especially those cities that have a difficult situation with bypass, raises concerns about the air quality in sections of the transport corridors, as well as in the city as a whole. Heavy metal pollution is a serious environmental concern, especially in urban and suburban areas where vehicle emissions contribute to air and soil pollution. The aim of the study is to assess the extent of heavy metal contamination in snow samples collected at dif...

Air Pollution and Climate Change2024
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Energy and Clean Technologies, Vol 24, Issue 4.2
Publication

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

(STEF92 Technology, 2024-12-15, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Kristaps Siltumens, Olga Skiste, Inga Grīnfelde)

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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 CH...

Air Pollution and Climate Change2024
24th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2024, Water Resources. Forest, Marine and Ocean Ecosystems, Vol 24, Issue 3.1
Publication

TEMPORAL VARIATIONS IN GREENHOUSE GAS EMISSIONS FROM AGRICULTURAL SOILS

(STEF92 Technology, 2024-11-01, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Kristaps Siltumens, Olga Skiste, Inga Grīnfelde)

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Soil moisture, soil temperature, nutrient availability, and land use practices affect the GHG emissions from soils. In this study, the aim is to determine and analyse GHG emissions from agricultural soils in five monitoring sites. The mobile spectrophotometer Picarro G2508 is used for the quantification of N2O, CH4, and CO2 soil flux across five monitoring sites used for agricultural production during the growing seasons from 2017 to 2023. Findings reveal significant variations in GHG emissions across the monitori...

Soils2024
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