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Nitrogen budgets for the Republic of Korea and the Yellow Sea region

Growing populations in northeast Asia have greatly altered the nitrogencycle, with increases in agricultural production to feed the population, andwith increases in N emissions and transboundary air pollution. For example,during the 1900's over 50% of the N deposition over Republic of Korea wasimported from abroad. In this paper, we present biogeochemical budgets ofN for the South Korean peninsula (the Republic of Korea) and for the YellowSea region. We quantify N inputs from atmospheric deposition, fertilizers,biological fixation, and imports of food, feed, and products.

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