Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China
All-season warming is assumed to advance snowmelt and delay snow accumulation; additionally, coupled with warming-induced drought stress, all-season warming could extend both the beginning and the end of the fire season. Using fire data updated for 1968–2018, we found an asymmetrical expansion of th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/12/8/1023 |
| _version_ | 1797523862983802880 |
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| author | Cong Gao Ran An Wenqian Wang Chunming Shi Mingyu Wang Kezhen Liu Xiaoxu Wu Guocan Wu Lifu Shu |
| author_facet | Cong Gao Ran An Wenqian Wang Chunming Shi Mingyu Wang Kezhen Liu Xiaoxu Wu Guocan Wu Lifu Shu |
| author_sort | Cong Gao |
| collection | DOAJ |
| description | All-season warming is assumed to advance snowmelt and delay snow accumulation; additionally, coupled with warming-induced drought stress, all-season warming could extend both the beginning and the end of the fire season. Using fire data updated for 1968–2018, we found an asymmetrical expansion of the lightning fire season in the boreal forest of Northeast China. Lightning fires have not advanced into the early fire season (May–June) but have largely extended into the snowless late fire season (July–September) since the late 1990s (mean end Julian date delayed by 51.1 days for 1998–2018 compared with 1968–1997, <i>p</i> < 0.001). Despite significant warming, the Julian days of snowmelt have changed only slightly, which has prohibited the fire season from advancing into early spring. The expansion of lightning fires into July–September was associated with a warming-induced significant increase in evapotranspiration and a decrease in soil/fuel moisture. |
| first_indexed | 2024-03-10T08:49:08Z |
| format | Article |
| id | doaj.art-d228d09a894e4898a2482883a6c1854c |
| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-10T08:49:08Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Forests |
| spelling | doaj.art-d228d09a894e4898a2482883a6c1854c2023-11-22T07:42:23ZengMDPI AGForests1999-49072021-07-01128102310.3390/f12081023Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast ChinaCong Gao0Ran An1Wenqian Wang2Chunming Shi3Mingyu Wang4Kezhen Liu5Xiaoxu Wu6Guocan Wu7Lifu Shu8College of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaResearch Institute of Forest Ecology, Environment and Protection, Key Laboratory of Forest Protection of National Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing 100091, ChinaDepartment of Public Security, Nanjing Forest Police College, Nanjing 210023, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaCollege of Global Change and Earth System Science, Beijing Normal University, Beijing 100875, ChinaResearch Institute of Forest Ecology, Environment and Protection, Key Laboratory of Forest Protection of National Forestry and Grassland Administration, Chinese Academy of Forestry, Beijing 100091, ChinaAll-season warming is assumed to advance snowmelt and delay snow accumulation; additionally, coupled with warming-induced drought stress, all-season warming could extend both the beginning and the end of the fire season. Using fire data updated for 1968–2018, we found an asymmetrical expansion of the lightning fire season in the boreal forest of Northeast China. Lightning fires have not advanced into the early fire season (May–June) but have largely extended into the snowless late fire season (July–September) since the late 1990s (mean end Julian date delayed by 51.1 days for 1998–2018 compared with 1968–1997, <i>p</i> < 0.001). Despite significant warming, the Julian days of snowmelt have changed only slightly, which has prohibited the fire season from advancing into early spring. The expansion of lightning fires into July–September was associated with a warming-induced significant increase in evapotranspiration and a decrease in soil/fuel moisture.https://www.mdpi.com/1999-4907/12/8/1023lightning firefire seasonboreal forestasymmetrical expansion |
| spellingShingle | Cong Gao Ran An Wenqian Wang Chunming Shi Mingyu Wang Kezhen Liu Xiaoxu Wu Guocan Wu Lifu Shu Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China Forests lightning fire fire season boreal forest asymmetrical expansion |
| title | Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China |
| title_full | Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China |
| title_fullStr | Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China |
| title_full_unstemmed | Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China |
| title_short | Asymmetrical Lightning Fire Season Expansion in the Boreal Forest of Northeast China |
| title_sort | asymmetrical lightning fire season expansion in the boreal forest of northeast china |
| topic | lightning fire fire season boreal forest asymmetrical expansion |
| url | https://www.mdpi.com/1999-4907/12/8/1023 |
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