Study On Emissions And Influencing Factors Of Reactive Gaseous Nitrogen In Fujian Province

China is faced with series of ecological and environmental problems caused by the increasing chemical fertilizer, fossil fuel consumption and other anthropogenic sources of reactive nitrogen.Meanwhile, we are under the international pressure of a comprehensive assessment of reactive nitrogen.However, our country has a large population, vast territory and abundant resources, so population distribution, socio-economic development, plant breeding structure, and climate, etc. in all regions are different. Research on gaseous reactive nitrogen emission in "Top-down" national scale is difficult to reflect the regional differences. Based on The People’s republic of China Provincial Greenhouse Gas Inventory, Guidelines of Atmospheric Ammonia Inventory and other related research theories, this research takes Fujian province as a case to account the discharge of the gaseous reactive nitrogen, including ammonia (NH3), nitrous oxide (N2O) and nitrogen oxides (NOx) from 1980 to 2013, analyzing the main emission source and its historical changes and finding out the main driving factors. It will provide guidance for the research on gaseous reactive nitrogen emission in the provincial scale.The gaseous reactive nitrogen emissions have increased annually in Fujian province from 1980 to 2013. The discharge of ammonia in 1980 is more 1 times than 1980 doubled during the period, has increased from 106.7Gg to 202.8Gg. Livestock and agricultural cultivation as the main sources of NH3 account for 59 and 32% respectively. The main factor on NH3 emission is population that changes by per 1% will cause 8.1% changes of the NH3 emissions in the original technical level. The discharge of nitrous oxide has increased from 19.0 Gg to 37.6 Gg. The main source of nitrous oxide is cultivate soil, accounting for 79% in anthropogenic sources the annual proportion of which is 79%.The main factor on N2O emission is population that changes per 1% will cause 1.6% changes of the NH3. The NOx emission has increased from 32.0 Gg to 972.1Gg with the average annual growth of 27.1%, and the main sources of emissions are from energy, industry and transportation accounting for 42%,35% and 17%. GDP per capita is the huge driving force to the emissions that changes per 1% will cause 1.7%.changes of NOx emissions.