福建省2000~2010年林火排放污染物时空动态变化  

Temporal and spatial dynamics of pollutants emission from forest fires in Fujian during 2000—2010

作　　者：靳全锋 王文辉[1,2] 马祥庆[1,2] 杨淑妍 郭福涛[1,2] JIN Quan-feng;WANG Wen-hui;MA Xiang-qing;YANG Shu-yan;GUO Fu-tao(Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China;Co-innovation Center for Soil and Water Conservation in Red Soil Region of the Cross-straits, Fujian Agriculture and Forestry University, Fuzhou 350002, China)

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建农林大学海峡两岸水土保持协同创新中心,福建福州350002

出　　处：《中国环境科学》2017年第2期476-485,共10页China Environmental Science

基　　金：国家自然科学基金资助项目(31400552);福建省自然科学基金资助项目(2015J05049);福建农林大学校杰出青年基金资助项目(xjq201613);福建农林大学校国际科技合作与交流资助项目(KXB16008A)

摘　　要：基于2000~2010年福建地区卫星火点数据,结合林业统计年鉴,估算各区域林火燃烧生物量.并运用排放因子法,估算11a间福建地区林火排放污染物总量.结果表明,2000~2010年福建地区林火年变化呈先增加后降低趋势.福建地区森林可燃物总燃烧量分别为6.57mt,污染物CO_2、CO、NO_x、VOCs、CH_4、PM_(2.5)、TC、OC和EC排放总量分别为:1.64mt、98.19kt、1.43kt、8.70kt、9.43kt、10.12kt、5.35kt、4.66kt和689.59t.此外,各污染物排放在时间和空间上不均衡,各污染物最大的排放量多集中在南平西南部、三明西北以及南平、三明、宁德和福州交汇区域,除厦门外,CO_2、CO、NO_x、CH_4、VOCs、PM_(2.5)、OC、EC和TC在福建省其他地区均呈增长趋势.林火释放PM_(2.5)与工业粉尘的排放比变化趋势表明总体呈上升趋势,说明福建省森林火灾对当地空气质量的影响正在逐渐加强.This study investigated the fire frequencies,biomass burned and the emissions of pollutants from forest fires inFujian Province during2000~2010.The results showed that the fire regime changes in Fujian during2000~2010,firstlyincreased and then decreased.The total combustion of forest fuel amount were6.57mt,and the pollutants of CO2,CO,NOx,VOCs,CH4,PM2.5,TC,OC and EC emissions were:1.64mt、98.19kt、1.43kt、8.70kt、9.43kt、10.12kt、5.35kt、4.66kt and689.59t,respectively.In addition,the pollutants were imbalance in time and space.The pollutant emissionswere more concentrated in the southwest of Nanping,northwest of Sanming and the transitional zone between Nanping,Sanming,Ningde and Fuzhou.CO2,CO,NOx,CH4,VOCs,PM2.5,OC and EC,and TC showed increasing trends in theentire Fujian except for Xiamen.The overall trend of the ratio of PM2.5released from forest fires and industrial dusts alsoshowed increasing trend,which explained that the influence of forest fires on local air quality in Fujian was enhancedsignificantly.The study of spatial-temporal variation of forest fires released pollutants in Fujian province could providedata to support for further investigations on the importance of the forest fire with respect to regional environment.

关 键 词：福建 林火 污染物 时空变化 

分 类 号：X51[环境科学与工程—环境工程]