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• Investigation of carbon dioxide emissions from underutilized grassland

  15-25

  Krisztina Varga

  István Csizi

  Views:

  260

  Climate change-induced extreme changes are making phytomass yields of extensive grasslands in continental areas increasingly dependent on the season. This situation is exacerbated, inter alia, by the decline in grazing livestock production due to a lack of quality labour, and thus by an increase in the proportion of unused or under-utilised grassland. In our experiments, we have refined the effects of a decade of zero, mulch, mowing and meadow utilisation on carbon emissions, soil moisture and soil temperature during two different types of years. We found that zero tillage with accumulated duff in the absence of utilization had the highest carbon dioxide emission values in different years, even at lower soil moisture values. Our results confirm the fact that fallow grasslands can be considered a source of risk due to their increased greenhouse gas emissions.

• Methods for calculating GHG emissions from grassland based livestock farming

  35-39

  Mate Istvan Repas

  Views:

  102

  Understanding global climate change and finding ways to curb it is one of the greatest scientific challenges of our time, a number of studies examining the climatic effects of agriculture, including animal husbandry. Analyzing the most common methods of studying the climatic effects of animal husbandry, we can say that each method has its own shortcomings, their practical application is often difficult, and their results can be contradictory. In articles examining CO2 emissions from grasslands, we often come across results that contradict basic in-kind observations. In my opinion, it is worthwhile to define exactly what is meant by animal husbandry in the research on the topic, as there is no uniform conceptual definition, and in the future it would be expedient to develop a method for calculating GHG emissions from small livestock farms.