Estimasi Dan Opsi Mitigasi Emisi Metana Dari Subsektor Peternakan Di Kabupaten Pati

The livestock sector contributes on the increase of atmospheric glasshouse gas concentration, particularly methane (CH4). The objectives of this study were to establish an inventory of methane emission from livestock which used as a baseline to develop mitigation options for reducing the emission. Data regarding livestock’s population in Pati regency during the period of 2010-2014 and methane emission factors were used as primary data. Tier 1 methodology provided by Intergovernmental Panel on Climate Change (IPCC) is selected to quantify methane emission from the livestock sector. The average of methane emission during the period 2010-2014 is 5.52 GgCH4/year equal to 116 GgCO2-eq/year. The largest contributor of methane emission came from cattle followed by goat with the average percentage 82% and 12%, respectively. The improvement of a variety of nutrition in diets like addition of some leguminous forages and supplementation of urea molasses block offers good options to mitigate methane emission from enteric fermentation. Compared to in wet condition, the treatment of manure in dry condition like dry lot and daily spreading methods produces less methane emission. In addition, the utilization of biogas technology for manure treatment can capture methane as well as provide sustainable energy.

Keywords : IPCC tier 1, livestock sector, mitigation, methane emission