福建省COD排放的时空变化趋势研究  

Temporal and Spatial Trends of COD Emissions in Fujian Province

作　　者：陈兴涛 Chen Xingtao(Fujian Province Environmental Monitoring Center Station, Fuzhou 350003, China)

机构地区：[1]福建省环境监测中心站,福建福州350003

出　　处：《环境科学与管理》2021年第7期62-65,共4页Environmental Science and Management

摘　　要：基于2000年-2019年环境统计数据,分析福建省COD排放的时空变化趋势。结果显示,在时间上的变化是,COD排放量先平稳上升,在2011年-2015年期间快速上升,后又呈现逐年下降趋势。排放强度从2000年-2010期间是先下降后处于较平稳区间内,变化不明显。2011年-2015期间有所上升,2016年-2019年期间快速下降。在空间分布上的变化趋势是,呈现由均匀分布到区域集中排放,由山区和沿海均有分布,向沿海集中趋势;有北部低、南部高的排放现象。COD总排放量及单位面积排放量总体情况上都表现为沿海城市高于山区城市。Based on environmental statistics from 2000 to 2019,this paper analyzes the temporal and spatial trends of COD emissions in Fujian Province.The results show COD emissions first rose steadily,rose rapidly during 2011-2015,and then showed a downward trend year by year.From 2000 to 2010,the emission intensity first declined and then stayed within a relatively stable range,and the change was not obvious.There was an increase during 2011-2015,and a rapid decline during 2016-2019.The change trend in spatial distribution is from uniform distribution to regional concentration of emissions,from mountainous areas and coastal areas,to a trend of concentration toward the coast.There are low emissions in the north and high emissions in the south.The total COD emissions and emissions per unit area are generally higher in coastal cities than in mountainous cities.

关 键 词：环境统计 COD 时空分布 集中排放 

分 类 号：X32[环境科学与工程—环境工程]