Greenhouse gas emissions caused by farm manure management in Latvia
2019
Berzina, L., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Inst. of Animal Sciences | Priekulis, J., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Inst. of Animal Sciences | Aboltins, A., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Inst. of Animal Sciences | Frolova, O., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Inst. of Animal Sciences
The article discusses the effect of farm manure management on emissions of greenhouse gases or GHG. The Latvian GHG emission mandatory data for the time period from 2000 to 2017 have been used for the research. It has been stated that in animal breeding 73 % of the total GHG emissions are related to the animal digestive tract and only 27 % – to management of farm manure. Besides, the direct GHG emissions influenced by farm manure collection, storage and application technologies comprise only 13 % of the total amount of GHG emissions from animal breeding, but 6 % of emissions are created by working farm manure into the ground, 5 % – from usage of pastures and 3 % of the total emissions are indirect farm manure management emissions. Emissions caused by farm manure management from 2000 to 2017 in Latvia have increased by 3.7 %. It has been mainly influenced by the increasing number of beef cattle as well as by transition to more up-dated animal breeding technologies involving production of liquid manure. Using the present GHG emissions calculation method it is not possible to prognosticate reduction of these emissions. Therefore, it is necessary to implement the emission reduction measures described in special literature, for instance, addition of bacteriological or chemical additives to liquid manure, and these measures should be included in the methods of calculation of GHG emissions.
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