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Kristine Valujeva

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

Author: Kristine ValujevaSubject: Soilsclear all
Showing 1-6 of 6 records
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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
SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2023, Water Resources. Forest, Marine and Ocean Ecosystems, Vol 23, Issue 3.1
Publication

THE EFFECTS OF SOIL TILLAGE AND CROP ROTATION ON GHG EMISSIONS FROM CLAY SOIL: CASE STUDY FROM LATVIA

(STEF92 Technology, 2023-10-01, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Inga Grīnfelde)

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In order to reduce the impact of agricultural activity on global warming and promote sustainable land management, it is necessary to implement management practices that reduce GHG emissions from agriculture. Conventional soil tillage produces favorable conditions for the growth of seeds and plants, but it is an energy and labor-intensive method that alters the soil to an unfavorable condition, while reduced soil tillage decrease the use of energy resources, GHG emissions from the soils, and improves the soil quali...

Soils2023
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

TOWARDS AN IMPROVED UNDERSTANDING OF GREENHOUSE GAS EMISSIONS FROM ORGANIC SOILS USED FOR AGRICULTURAL PRODUCTION

(STEF92 Technology, 2021-12-20, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Sindija Liepa, Inga Grīnfelde)

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The achieving of 17 United Nations Sustainable Development Goals (SDGs) is closely linked to sustainable soil management to provide food, fibre, fuel, to avoid land degradation, to promote land restoration, water regulation, nutrient cycling and to ensure habitat for biodiversity. Organic soils can be a carbon sink or a carbon source depending on land use and land use management. Agricultural production on organic soils is considered as an important source of anthropogenic CO2 and N2O emissions. Long-term plans to...

Soils2021
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

OPTIMISATION OF LAND USE FOR IMPROVED SOIL BASED ECOSYSTEM SERVICES: AN EXAMPLE FROM LATVIA

(STEF92 Technology, 2020-09-20, Kristine Valujeva, Jovita Pilecka-Uļčugačeva, Inga Grīnfelde, Aleksejs Nipers)

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The growing demand for bio-based products worldwide provides opportunity for Central and Eastern European countries to increase agricultural and wood production. Nevertheless, increase in bio-based production is restricted by emission reduction targets set by climate policies. Meanwhile, the changes in Common Agricultural Policy after 2020 offer each Member State to develop targeted and regional specific policies to meet socio-economic and environmental targets at national scale. Sustainable land management requir...

Soils2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

EXPLORING THE TRADE-OFFS BETWEEN SOIL FUNCTIONS AT LOCAL SCALE

(STEF92 Technology, 2019-06-20, Kristine Valujeva)

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Soil provides many ecosystem services, therefore sustainable soil management, soil protection and ability to deliver ecosystem services are major concern worldwide. The growing demand for food and fiber, increases pressure on delivery of other ecosystem services provided by soil, namely water purification and regulation, carbon sequestration and regulation, nutrient cycling and provision of habitat for biodiversity. In this context, Functional Land Management framework was developed to optimise rather than maximiz...

Soils2019
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

SUPPLY AND DEMAND OF MULTIPLE SOIL FUNCTIONS IN TWO DIFFERENT REGIONS IN LATVIA

(STEF92 Technology, 2018-06-20, Kristine Valujeva)

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The development of the agricultural industry and increasing demands for bio-based products adds pressure on natural resources, such as water and soil. Soil is non-renewable resource and provides many ecosystem services, namely food and biomass production, water purification, nutrient cycling, carbon sequestration and habitats for biodiversity. The simultaneous achievement of socio-economic and climate policy objectives is challenging and requires careful management of soils as a pivotal resource. In Latvia, the ke...

Soils2018
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