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author:

Ning, Xincen (Ning, Xincen.) [1] | Li, Jianwei (Li, Jianwei.) [2] (Scholars:李建微) | Zhuang, Pengkun (Zhuang, Pengkun.) [3] | Lai, Shifu (Lai, Shifu.) [4] | Zheng, Xiaogan (Zheng, Xiaogan.) [5]

Indexed by:

Scopus SCIE

Abstract:

Wildfires, a persistent environmental menace, are a significant source of harmful gases and particulate emissions. This study leverages the fire radiative power (FRP) method to delineate a comprehensive wildfire emission inventory for Southwest China from 2001 to 2020. Daily fire radiative power data derived from 1 km MODIS Thermal Anomalies/Fire products (MOD14/MYD14) were used to calculate the FRE and combusted biomass. Available emission factors were assigned to three biomass burn types: forest, grass, and shrub fires. Over the span of two decades, we have compiled data and estimated the annual emissions of carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), sulfur dioxide (SO2), ammonia (NH3), nitrogen oxides (NOx), total particulate matter (TPM), black carbon (BC), organic carbon (OC), and non-methane volatile organic compounds (NMVOCs) to be 9809.13, 566.82, 25.79, 5.37, 12.25, 16.67, 133.53, 4.16, 41.81, and 97.23 Gg per year (Gg yr(-1)), respectively. In terms of fire type, forest fires accounted for the largest portion of total CO2 emissions (59.23%), with grass fires and shrub fires coming in second and third, accounting for 20.41% and 20.36%, respectively. Geographically, Yunnan Province were identified as the major contributor in Southwest China, accounting for 69.67% of the total emissions. Temporally, the maximum emission occurred in 2010 (24263.33 Gg), and the minimum emission occurred in 2017 (2917.66 Gg). And the emissions were mainly concentrated in February (23.33%), March (25.52%), and April (22.61%), which accounted for nearly three-fourths of the total emissions. The results of this study are much higher than those obtained by the burned area method, almost three times as high. In contrast, the results of this study are close to the fire emission data from the GFED4s and GFASv1.2 and QFEDv2.5r1 databases.

Keyword:

Emission inventory Fire radiative power Forest fire Southwest China Wildfire

Community:

  • [ 1 ] [Ning, Xincen]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Li, Jianwei]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Ning, Xincen]Fuzhou Univ, Acad Digital China Fu Jian, Fuzhou 350108, Peoples R China
  • [ 4 ] [Li, Jianwei]Fuzhou Univ, Acad Digital China Fu Jian, Fuzhou 350108, Peoples R China
  • [ 5 ] [Zhuang, Pengkun]Fuzhou Univ, Acad Digital China Fu Jian, Fuzhou 350108, Peoples R China
  • [ 6 ] [Lai, Shifu]Fuzhou Univ, Acad Digital China Fu Jian, Fuzhou 350108, Peoples R China
  • [ 7 ] [Zheng, Xiaogan]Fuzhou Power Supply Co State Grid Fujian Elect Pow, Lab Live Working Tech Power Transmiss, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Li, Jianwei]Fuzhou Univ, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China;;

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Source :

ATMOSPHERIC POLLUTION RESEARCH

ISSN: 1309-1042

Year: 2024

Issue: 11

Volume: 15

3 . 9 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 4

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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