福建省地级市人为源活性氮排放及其特征分析

发布时间：2018-05-20 11:39

本文选题：福建省 + 人为活性氮排放　；参考：《环境科学》2017年09期

【摘要】：在人口增长和快速城市化的背景下,活性氮排放对生态环境的影响日益加剧.为研究省级尺度活性氮排放规律,采用排放因子法建立2000、2005及2010年福建省人为源活性氮排放清单,分析各地市3个年份活性氮排放量及排放强度特征.结果表明,3个年份福建省活性氮排放总量分别为538.4、587.0和619.97 Gg,呈整体增加趋势.在9个地级市中,增速最快的为莆田市,而漳州市排放量有所下降.排放量最大的为漳州和泉州,排放量最小的为宁德与厦门.从排放来源看,90%以上的排放来自农田生态系统和畜禽养殖系统.能源活动贡献较小,但其排放增长最为显著.2010年,各地市单位面积活性氮排放强度呈"东南沿海高西北内陆低"的格局,最高为厦门市,最低为三明市;GDP和人口排放强度则呈"东南沿海低西北内陆高"的格局,最高为南平市,最低为厦门市.在分析各地市活性氮排放源特征的基础上,探讨了不同地区活性氮减排重点,研究结果可为福建省及下辖各地市活性氮减排提供科学依据.
[Abstract]:Under the background of population growth and rapid urbanization, the impact of active nitrogen emissions on the ecological environment is increasing. In order to study the emission regularity of active nitrogen at provincial scale, the emission inventory of active nitrogen from anthropogenic sources in Fujian Province in 2005 and 2010 was established by means of emission factor method, and the characteristics of active nitrogen emissions and emission intensity in three years of each city were analyzed. The results showed that the total amount of active nitrogen emissions in Fujian Province was 538.4587.0 and 619.97 Gg respectively, which showed an overall increasing trend. In 9 prefectural cities, the fastest-growing Putian City, and Zhangzhou City emissions have decreased. The largest emissions are Zhangzhou and Quanzhou, the smallest emissions are Ningde and Xiamen. More than 90% of the emissions come from farmland ecosystem and livestock and poultry farming system. The contribution of energy activities is small, but the emission increase is the most remarkable. In 2010, the emission intensity of active nitrogen per unit area of each city was "high and northwest inland and low" pattern in southeast coastal area, the highest was Xiamen City, The lowest is Sanming city's gross domestic product (GDP) and population emission intensity, which is the pattern of "southeast coastal low northwest inland high" pattern, the highest is Nanping city, and the lowest is Xiamen city. On the basis of analyzing the characteristics of active nitrogen emission sources in different cities and cities, the key points of active nitrogen emission reduction in different regions are discussed. The results can provide scientific basis for the emission reduction of active nitrogen in Fujian Province and other cities under its jurisdiction.
【作者单位】：中国科学院城市环境研究所城市环境与健康重点实验室;中国科学院大学资源与环境学院;厦门市城市代谢重点实验室;
【基金】：国家重大科学研究计划项目(2014CB953801) 中国科学院城市环境研究所青年人才领域前沿项目(IUEMS201402)
【分类号】：X701

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