دورية أكاديمية
COVID-19 lockdowns drive decline in active fires in southeastern United States.
| العنوان: | COVID-19 lockdowns drive decline in active fires in southeastern United States. |
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| المؤلفون: | Poulter B; Earth Sciences Division, Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771; benjamin.poulter@nasa.gov., Freeborn PH; Rocky Mountain Research Station, Fire Sciences Laboratory, US Forest Service, Missoula, MT 59803., Jolly WM; Rocky Mountain Research Station, Fire Sciences Laboratory, US Forest Service, Missoula, MT 59803., Varner JM; Tall Timbers Research Station, Tallahassee, FL 32312. |
| المصدر: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2021 Oct 26; Vol. 118 (43). |
| نوع المنشور: | Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: National Academy of Sciences Country of Publication: United States NLM ID: 7505876 Publication Model: Print Cited Medium: Internet ISSN: 1091-6490 (Electronic) Linking ISSN: 00278424 NLM ISO Abbreviation: Proc Natl Acad Sci U S A Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : National Academy of Sciences |
| مواضيع طبية MeSH: | Pandemics*/prevention & control , Physical Distancing* , SARS-CoV-2*, COVID-19/*prevention & control , Wildfires/*prevention & control, Biodiversity ; COVID-19/epidemiology ; Droughts/statistics & numerical data ; Ecosystem ; Forests ; Human Activities ; Humans ; Models, Statistical ; Southeastern United States/epidemiology ; Weather ; Wildfires/statistics & numerical data |
| مستخلص: | Fire is a common ecosystem process in forests and grasslands worldwide. Increasingly, ignitions are controlled by human activities either through suppression of wildfires or intentional ignition of prescribed fires. The southeastern United States leads the nation in prescribed fire, burning ca. 80% of the country's extent annually. The COVID-19 pandemic radically changed human behavior as workplaces implemented social-distancing guidelines and provided an opportunity to evaluate relationships between humans and fire as fire management plans were postponed or cancelled. Using active fire data from satellite-based observations, we found that in the southeastern United States, COVID-19 led to a 21% reduction in fire activity compared to the 2003 to 2019 average. The reduction was more pronounced for federally managed lands, up to 41% below average compared to the past 20 y (38% below average compared to the past decade). Declines in fire activity were partly affected by an unusually wet February before the COVID-19 shutdown began in mid-March 2020. Despite the wet spring, the predicted number of active fire detections was still lower than expected, confirming a COVID-19 signal on ignitions. In addition, prescribed fire management statistics reported by US federal agencies confirmed the satellite observations and showed that, following the wet February and before the mid-March COVID-19 shutdown, cumulative burned area was approaching record highs across the region. With fire return intervals in the southeastern United States as frequent as 1 to 2 y, COVID-19 fire impacts will contribute to an increasing backlog in necessary fire management activities, affecting biodiversity and future fire danger. Competing Interests: The authors declare no competing interest. (Copyright © 2021 the Author(s). Published by PNAS.) |
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| فهرسة مساهمة: | Keywords: COVID-19; fire; forest |
| تواريخ الأحداث: | Date Created: 20211019 Date Completed: 20211028 Latest Revision: 20211213 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC8639348 |
| DOI: | 10.1073/pnas.2105666118 |
| PMID: | 34663728 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1091-6490 |
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| DOI: | 10.1073/pnas.2105666118 |