Peer-reviewed articles 17,970 +


Kristaps Siltumens; Sindija Liepa; Inga Grinfelde; Diana Ruska; Dzidra Kreismane
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
One of the largest producers of GHG emissions in agriculture is the dairy and meat livestock sector. Grassland is the main feed base for dairy and meat cattle. Managed grasslands can become a major contributor to and leverage of GHG gas exchange. High quality information with studies on the flow of the three main GHG gases and concentration linked to different management strategies is important for the development of good management practices, as well as for the development of climateresilient landscapes and the reduction of climate impacts on agricultural lands. The aim of this study is to identify the impacts of the composition of grassland plants on GHG emissions on clay soils, as well as to clarify the impact of fertiliser on these gases. The pilot research used a field of 45 m wide and 34 m long, which was divided into 64 squares. The squares of field were divided into 2 parts – fertilised and non-fertilised, creating four repetitions. Each of the groups consisted of eight fields, each of which was filled with herbaceous grasslands in accordance with Latvian climate conditions. Measurements of GHG emissions were carried out weekly from 5 June to 16 September. N2O, CH4, CO2, gases were measured with CRDS gas measurement device PICARO G2508. Each field was measured for four minutes, a minute pause was withheld between the measurements, for measurement accuracy. Grass composition has an impact on GHG emissions, as the results have revealed a significant difference between the selected grass mixtures. The lowest N2O emissions, as well as one of the largest CH4 sequestration, but CO2 emissions are among the average. Additional an analysis of the data, it was found that the fertiliser had not affected GHG emissions, this is due to the correct selection of the fertiliser.
[1] Ritchie H., Roser M., CO? and Greenhouse Gas Emissions, Our World in Data, 2020.
[2] Soussana J.F., Pilegaard K., Ambus P., Annual greenhouse gas balance of European grasslands—first results from the GreenGrass project, International Conference Greenhouse Gas Emissions from Agriculture—Mitigation Options and Strategies, Germany, pp 25-30, 2004.
[3] Jones S.K., Rees R.M., Skiba U. M., Ball B.C., Greenhouse gas emissions from a managed grassland, Global and Planetary Change, United Kingdom, vol. 47/issue 2-4, pp 201-211, 2005.
[4] Reynolds J.F., Smith D.M.S., Lambin E.F., Mortimore M., Turner B.L., Global desertification: building a science for dryland development, Science, vol. 316/issue 5826, pp 847-851, 2007.
[5] Lal R., Soil carbon sequestration to mitigate climate change, Geoderma, vol. 123/issue 1-2, pp. 1-22, 2004.
[6] Hoffmann C., Giese M., Dickhoefer U., Wan H., Bai Y., Steffens M., Liu C., Bahl K. Han X., Effects of grazing and climate variability on grassland ecosystem functions in Inner Mongolia: synthesis of a 6-year grazing experiment, Journal of Arid Environ, vol. 135, pp. 50-63, 2016.
[7] Konda R., Ohta S., Ishizuka S., Heriyanto J., Wicaksono A., Seasonal changes in the spatial structures of N2O, CO2, and CH4 fluxes from Acacia mangium plantation soils in Indonesia, Soil Biology and Biochemistry, vol. 42/issue 9, pp 1512-1522, 2010.
[8] Hu Y., Chang X., Lin X., Wang Y., Wang S., Duan J., Zhang Z., Yang X., Luo C., Xu G., Zhao X., Effects of warming and grazing on N2O fluxes in an alpine meadow ecosystem on the Tibetan plateau, Soil Biology and Biochemistry, vol. 42/issue 6, pp 944-952, 2010.
[9] Chang J., Ciais P., Gasser T., Smith P., Herrero M., Havlik P., Obersteiner M., Guenet B., Climate warming from managed grasslands cancels the cooling effect of carbon sinks in sparsely grazed and natural grasslands, vol. 12, pp 118, 2021.
[10] Grinfelde I., Valujeva K., Zaharane K., Berzina L. Automated cavity ring down spectroscopy usage for nitrous oxide emission measurements from soil using recirculation system, Engineering for Rural Development, vol. 16, pp 1111 – 1116, 2017.
[11] Valujeva K., Pilecka J., Frolova O., Berzina L., Grinfelde I., Measurement time estimation of CO2, CH4, N2O and NH3 in closed chambers and recirculation system with picarro g2508 analyser, International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM, vol. 17 / issue. 41, pp. 519 – 526, 2017.
The study was carried out within the project “Climate Care Cattle Farming Systems” CCCFarming; ID: 39274 funded by FACCE ERA-GAS, ERA-NET SUSAN and ICTAGRI ERA-NET.
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.
04 - 10 July, 2022
Grassland, GHG emissions, clay soil, plant composition

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