부산대학교 도서관

The article focuses on the techniques of estimating enteric methane emissions from ruminants. Conventional methods of estimating include measuring by confining animals in large chambers, using masks, or by a ratiometric technique that involves sampling animal's respired air. For evaluating large-scale emissions from farm and the variation between farms, these techniques often prove to be inadequate. This article details the utilization of an inverse-dispersion technique to determine farm emissions in a controlled tracer-release experiment. Methane emitted globally from agricultural sources accounts for two-thirds of the anthropogenic methane sources. Measuring methane emissions from livestock facilities is a difficult job. Some studies have used close approximations to real farms in order to measure methane. The inverse-dispersion approach described in this article could be easily used to calculate farm scale methane emissions. It enables a quick assessment of mitigation processes of the entire farms.