2010년도 대한민국 농업 및 축산업지역의 질소 유입 및 유출 수지

초록

The objectives of this research were to estimate nitrogen budgets in agriculture and livestock in 2010, and to evaluate nitrous oxide (N2O) emission by a local government. Input-output budgets for nitrogen were categorized into two sections including agriculture and livestock. Fertilizer, deposition, fixation, compost, irrigation, and feed were used as the nitrogen inputs while crop production, crop uptake, denitrification, volatilization, leaching, compost, and ocean disposal were used as the nitrogen outputs. Annual nitrogen input and output for agriculture and livestock were 1,148,848 N ton/yr and 610,380 N ton/yr respectively indicating the decrease of the nitrogen input and output, compared to our previous researches in 2005 and 2008. Total nitrogen input in 16 local government was estimated resulting that N2O emission was the highest for Jeonnam (2,574 ton/yr) and the lowest for Seoul (7 ton/yr).

키워드