福建省硫沉降量变化的分析与比较  

Analysis and Comparison of the Change of Sulphur Deposition in Fujian Region

作　　者：屈玉[1] 肖辉[1] 王振会[2] 刘新罡[3] 林长城[4] 

机构地区：[1]中国科学院大气物理研究所云降水物理与强风暴实验室,北京100029 [2]南京信息工程大学,南京210044 [3]北京大学环境学院,北京100871 [4]福建省气象科学研究所,福州350001

出　　处：《气候与环境研究》2006年第2期185-193,共9页Climatic and Environmental Research

基　　金：福建省重大科技计划项目2002F004

摘　　要：应用中国科学院大气物理研究所建立的三维欧拉污染物输送模式模拟了1995、2000、2002年福建省本省排放源造成的和邻近省份排放源向其输送的硫沉降量,结果表明,福建省接收的硫沉降量有一半以上是由周围省份的远距离输送造成的。进而分析了每年4个季节硫沉降的变化特点,并结合福建省气象条件给出理论解释。最后,把这3年福建省SO2及SO42-年沉降量和各季节沉降量分别作了比较,结果显示,造成福建省SO2沉降的主要来源是本省的排放源,而SO42-沉降中外来源占很大比例,超过了50%。Using a 3 D Eulerian transport model with emissions and meteorological data in 1995, 2000, and 2002, the sulphur deposition amounts in Fujian province of China coming from its local emissions and the emissions of its adjacent provinces are simulated. It can be concluded that above 50% of the total sulphur deposition in Fujian is resulted from long-range transport of neighboring provinces. According to this, the change of sulphur deposition in four seasons is further analyzed and explained with changes in meteorological conditions. Comparison of the wholeyear and every-season deposition amounts indicates that the contribution of local emissions to SO2 deposition in Fujian Province is very large, whereas that to SO4^2- deposition in this province is small and S（Y44 deposition is mainly from other provinces, accounting for more than 50% of its total deposition amount.

关 键 词：硫沉降 排放源 远距离输送 

分 类 号：X16[环境科学与工程—环境科学]