Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China
Lightning-ignited fire is sensitive to climatic change and responsible for large fires in boreal forests. In addition to global-warming caused fire increase, large-scale climate oscillations have significantly contributed to fire variability. However, the leading climate oscillation driving lightnin...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
|
| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/abde09 |
| _version_ | 1797747819325423616 |
|---|---|
| author | Cong Gao Fengjun Zhao Chunming Shi Kezhen Liu Xiaoxu Wu Guocan Wu Ying Liang Lifu Shu |
| author_facet | Cong Gao Fengjun Zhao Chunming Shi Kezhen Liu Xiaoxu Wu Guocan Wu Ying Liang Lifu Shu |
| author_sort | Cong Gao |
| collection | DOAJ |
| description | Lightning-ignited fire is sensitive to climatic change and responsible for large fires in boreal forests. In addition to global-warming caused fire increase, large-scale climate oscillations have significantly contributed to fire variability. However, the leading climate oscillation driving lightning-ignited fire and the mechanisms connecting regional and large-scale climate in the boreal forest of Northeast China, the most fire-prone biome of China, are still unclear. By compositing fire, climate, and atmospheric data, we found that the previous Atlantic Multidecadal Oscillation (AMO) was significantly coherent with the May to August temperature–evapotranspiration variability and lightning-ignited fire occurrence. These connections were valid at both the interannual and multidecadal time scales. Different from previous viewpoints, we found no connection of fire occurrence with the El Niño-Southern Oscillation and Pacific Decadal Oscillation. A warm AMO was followed by high sea level pressure and geopotential height over the study region. We assume these atmospheric anomalies are associated with descending atmospheric motion, producing adiabatic warming and less precipitation on the land surface, both of which favour high fuel aridity and lightning ignition. Therefore, we believe that the winter AMO could be a promising predictor for lightning-ignited fire occurrences in the following summer. |
| first_indexed | 2024-03-12T15:57:06Z |
| format | Article |
| id | doaj.art-cb5f83c4fc604184945cdad24b04c1d6 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:57:06Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-cb5f83c4fc604184945cdad24b04c1d62023-08-09T14:54:09ZengIOP PublishingEnvironmental Research Letters1748-93262021-01-0116202405410.1088/1748-9326/abde09Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast ChinaCong Gao0Fengjun Zhao1Chunming Shi2https://orcid.org/0000-0002-6609-7058Kezhen Liu3Xiaoxu Wu4https://orcid.org/0000-0003-1884-4095Guocan Wu5Ying Liang6Lifu Shu7College of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of China; These authors contributed equally to this work.Key Laboratory of Forest Protection of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry , Beijing 100091, People’s Republic of China; These authors contributed equally to this work.College of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of China; Corresponding AuthorsDepartment of public security, Nanjing Forest Police College , Nanjing 210023, People’s Republic of ChinaCollege of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of ChinaCollege of Global Change and Earth System Science, Beijing Normal University , Beijing 100875, People’s Republic of ChinaXinjiang Academy of Forestry Sciences , Urumqi 830000, People’s Republic of ChinaKey Laboratory of Forest Protection of National Forestry and Grassland Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry , Beijing 100091, People’s Republic of China; Corresponding AuthorsLightning-ignited fire is sensitive to climatic change and responsible for large fires in boreal forests. In addition to global-warming caused fire increase, large-scale climate oscillations have significantly contributed to fire variability. However, the leading climate oscillation driving lightning-ignited fire and the mechanisms connecting regional and large-scale climate in the boreal forest of Northeast China, the most fire-prone biome of China, are still unclear. By compositing fire, climate, and atmospheric data, we found that the previous Atlantic Multidecadal Oscillation (AMO) was significantly coherent with the May to August temperature–evapotranspiration variability and lightning-ignited fire occurrence. These connections were valid at both the interannual and multidecadal time scales. Different from previous viewpoints, we found no connection of fire occurrence with the El Niño-Southern Oscillation and Pacific Decadal Oscillation. A warm AMO was followed by high sea level pressure and geopotential height over the study region. We assume these atmospheric anomalies are associated with descending atmospheric motion, producing adiabatic warming and less precipitation on the land surface, both of which favour high fuel aridity and lightning ignition. Therefore, we believe that the winter AMO could be a promising predictor for lightning-ignited fire occurrences in the following summer.https://doi.org/10.1088/1748-9326/abde09lightning-ignited fireboreal forestAtlantic Multidecadal Oscillation |
| spellingShingle | Cong Gao Fengjun Zhao Chunming Shi Kezhen Liu Xiaoxu Wu Guocan Wu Ying Liang Lifu Shu Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China Environmental Research Letters lightning-ignited fire boreal forest Atlantic Multidecadal Oscillation |
| title | Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China |
| title_full | Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China |
| title_fullStr | Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China |
| title_full_unstemmed | Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China |
| title_short | Previous Atlantic Multidecadal Oscillation (AMO) modulates the lightning-ignited fire regime in the boreal forest of Northeast China |
| title_sort | previous atlantic multidecadal oscillation amo modulates the lightning ignited fire regime in the boreal forest of northeast china |
| topic | lightning-ignited fire boreal forest Atlantic Multidecadal Oscillation |
| url | https://doi.org/10.1088/1748-9326/abde09 |
| work_keys_str_mv | AT conggao previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT fengjunzhao previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT chunmingshi previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT kezhenliu previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT xiaoxuwu previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT guocanwu previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT yingliang previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina AT lifushu previousatlanticmultidecadaloscillationamomodulatesthelightningignitedfireregimeintheborealforestofnortheastchina |