Temporal and spatial dynamics of pollutants emission from forest fires in Fujian during 2000-2010
JIN Quan-feng1,2, WANG Wen-hui1,2, MA Xiang-qing1,2, YANG Shu-yan1,2, GUO Fu-tao1,2
1. Forestry College, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2. Co-innovation Center for Soil and Water Conservation in Red Soil Region of the Cross-straits, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Abstract：This study investigated the fire frequencies,biomass burned and the emissions of pollutants from forest fires in Fujian Province during 2000~2010. The results showed that the fire regime changes in Fujian during 2000~2010, firstly increased and then decreased. The total combustion of forest fuel amount were 6.57mt, 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 and 689.59t, respectively. In addition, the pollutants were imbalance in time and space. The pollutant emissions were 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 the entire Fujian except for Xiamen. The overall trend of the ratio of PM2.5 released from forest fires and industrial dusts also showed increasing trend, which explained that the influence of forest fires on local air quality in Fujian was enhanced significantly. The study of spatial-temporal variation of forest fires released pollutants in Fujian province could provide data to support for further investigations on the importance of the forest fire with respect to regional environment.
靳全锋, 王文辉, 马祥庆, 杨淑妍, 郭福涛. 福建省2000~2010年林火排放污染物时空动态变化[J]. 中国环境科学, 2017, 37(2): 476-485.
JIN Quan-feng, WANG Wen-hui, MA Xiang-qing, YANG Shu-yan, GUO Fu-tao. Temporal and spatial dynamics of pollutants emission from forest fires in Fujian during 2000-2010. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(2): 476-485.
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