Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020
<p>Open straw burning has been widely recognized as a significant source of greenhouse gases (GHGs), posing critical risks to atmospheric integrity and potentially exacerbating global warming. In this study, we proposed a novel method that integrates crop cycle information into extraction and...
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Copernicus Publications
2024-11-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/24/13101/2024/acp-24-13101-2024.pdf |
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| author | Z. Song Z. Song L. Zhang C. Tian Q. Fu Q. Fu Z. Shen R. Zhang D. Liu D. Liu S. Cui S. Cui |
| author_facet | Z. Song Z. Song L. Zhang C. Tian Q. Fu Q. Fu Z. Shen R. Zhang D. Liu D. Liu S. Cui S. Cui |
| author_sort | Z. Song |
| collection | DOAJ |
| description | <p>Open straw burning has been widely recognized as a significant source of greenhouse gases (GHGs), posing critical risks to atmospheric integrity and potentially exacerbating global warming. In this study, we proposed a novel method that integrates crop cycle information into extraction and classification of fire spots from open straw burning in Northeast China from 2001 to 2020. By synergizing the extracted fire spots with the modified fire radiative power (FRP) algorithm, we developed high-spatial-resolution emission inventories of GHGs, including carbon dioxide (CO<span class="inline-formula"><sub>2</sub></span>), methane (CH<span class="inline-formula"><sub>4</sub></span>), and nitrous oxide (N<span class="inline-formula"><sub>2</sub></span>O). Results showed that the northern Sanjiang Plain, eastern Songnen Plain, and eastern Liao River plain were areas with high intensity of open straw burning. The number of fire spots was evaluated during 2013–2017, accounting for 58.2 % of the total fire spots observed during 2001–2020. The prevalent season for open straw burning shifted from autumn (pre-2016) to spring (post-2016), accompanied by a more dispersed pattern in burning dates. The 2-decade cumulative emissions of CO<span class="inline-formula"><sub>2</sub></span>, CH<span class="inline-formula"><sub>4</sub></span>, and N<span class="inline-formula"><sub>2</sub></span>O were quantified at 198 Tg, 557 Gg, and 15.7 Gg, respectively, amounting to 218 Tg of CO<span class="inline-formula"><sub>2</sub></span>-eq (equivalent). Significant correlations were identified between GHG emissions and both straw yield and straw utilization (<span class="inline-formula"><i>p</i><0.01</span>). The enforcement of straw-burning bans since 2018 has played a pivotal role in curbing open straw burning and has reduced fire spots by 51.7 % on an annual basis compared to 2013–2017. The novel method proposed in this study considerably enhanced the accuracy in characterizing spatiotemporal distributions of fire spots from open straw burning and quantifying associated pollutant emissions.</p> |
| format | Article |
| id | doaj-art-83f6ebbeb8f14e14969712a65fc9678c |
| institution | OA Journals |
| issn | 1680-7316 1680-7324 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Copernicus Publications |
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| series | Atmospheric Chemistry and Physics |
| spelling | doaj-art-83f6ebbeb8f14e14969712a65fc9678c2025-08-20T01:52:41ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242024-11-0124131011311310.5194/acp-24-13101-2024Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020Z. Song0Z. Song1L. Zhang2C. Tian3Q. Fu4Q. Fu5Z. Shen6R. Zhang7D. Liu8D. Liu9S. Cui10S. Cui11International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaResearch Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaAir Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Ontario, M3H 5T4, CanadaCAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, 264003, ChinaInternational Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaResearch Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaDepartment of Environmental Sciences and Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaInstitute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, ChinaInternational Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaResearch Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaInternational Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang, 150030, ChinaResearch Center for Eco-Environment Protection of Songhua River Basin, Northeast Agricultural University, Harbin, Heilongjiang, 150030, China<p>Open straw burning has been widely recognized as a significant source of greenhouse gases (GHGs), posing critical risks to atmospheric integrity and potentially exacerbating global warming. In this study, we proposed a novel method that integrates crop cycle information into extraction and classification of fire spots from open straw burning in Northeast China from 2001 to 2020. By synergizing the extracted fire spots with the modified fire radiative power (FRP) algorithm, we developed high-spatial-resolution emission inventories of GHGs, including carbon dioxide (CO<span class="inline-formula"><sub>2</sub></span>), methane (CH<span class="inline-formula"><sub>4</sub></span>), and nitrous oxide (N<span class="inline-formula"><sub>2</sub></span>O). Results showed that the northern Sanjiang Plain, eastern Songnen Plain, and eastern Liao River plain were areas with high intensity of open straw burning. The number of fire spots was evaluated during 2013–2017, accounting for 58.2 % of the total fire spots observed during 2001–2020. The prevalent season for open straw burning shifted from autumn (pre-2016) to spring (post-2016), accompanied by a more dispersed pattern in burning dates. The 2-decade cumulative emissions of CO<span class="inline-formula"><sub>2</sub></span>, CH<span class="inline-formula"><sub>4</sub></span>, and N<span class="inline-formula"><sub>2</sub></span>O were quantified at 198 Tg, 557 Gg, and 15.7 Gg, respectively, amounting to 218 Tg of CO<span class="inline-formula"><sub>2</sub></span>-eq (equivalent). Significant correlations were identified between GHG emissions and both straw yield and straw utilization (<span class="inline-formula"><i>p</i><0.01</span>). The enforcement of straw-burning bans since 2018 has played a pivotal role in curbing open straw burning and has reduced fire spots by 51.7 % on an annual basis compared to 2013–2017. The novel method proposed in this study considerably enhanced the accuracy in characterizing spatiotemporal distributions of fire spots from open straw burning and quantifying associated pollutant emissions.</p>https://acp.copernicus.org/articles/24/13101/2024/acp-24-13101-2024.pdf |
| spellingShingle | Z. Song Z. Song L. Zhang C. Tian Q. Fu Q. Fu Z. Shen R. Zhang D. Liu D. Liu S. Cui S. Cui Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 Atmospheric Chemistry and Physics |
| title | Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 |
| title_full | Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 |
| title_fullStr | Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 |
| title_full_unstemmed | Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 |
| title_short | Development of a high-spatial-resolution annual emission inventory of greenhouse gases from open straw burning in Northeast China from 2001 to 2020 |
| title_sort | development of a high spatial resolution annual emission inventory of greenhouse gases from open straw burning in northeast china from 2001 to 2020 |
| url | https://acp.copernicus.org/articles/24/13101/2024/acp-24-13101-2024.pdf |
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