The Critical Role of Snowmelt Onset-Driven Vapor Pressure Deficit Variations in Wildfire Dynamics of Northern Latitudes
文献类型：期刊论文
| 作者 | Xu, Hongtao1,2; Chen, Hans W.3; Chen, Deliang4; Xiao, Cunde2; Xiao, Jingfeng5; He, Bin2,6; Lv, Aifeng7; Guo, Lanlan2; Yuan, Wenping8; Fu, Yongshuo9 |
| 刊名 | EARTHS FUTURE
 |
| 出版日期 | 2025-10-16 |
| 卷号 | 13期号:10页码:e2025EF006367 |
| DOI | 10.1029/2025EF006367 |
| 产权排序 | 7 |
| 文献子类 | Article |
| 英文摘要 | Interannual variability in snowmelt onset triggers dynamic responses in processes like surface energy exchange and the hydrological cycle through interactions between vegetation, soil and atmosphere, significantly affecting subsequent fire weather. However, it still remains unclear how shifts in snowmelt onset regulate fire weather and thereby wildfire dynamics during the following seasons. We analyze snowmelt onset dates and wildfire data for northern latitudes (>40 degrees N) and find that interannual variability in snowmelt onset critically influences wildfire dynamics during post-snowmelt periods, with earlier snowmelt tending to increase wildfire incidence. This influencing role is primarily associated with the snowmelt onset-induced variations in vapor pressure deficit, which is geographically pronounced in 47.5% of the northern latitudes, contributing 57.1% of the total influencing role, approximately doubling the contribution from plant water deficit or fuel moisture content and fuel availability. Mechanistically, compared to late snowmelt onset, early vegetation spring green-up caused by an earlier occurrence in snowmelt leads to early moisture consumption. This, in turn, amplifies plant water deficits, which limit evaporative cooling and increase sensible heat fluxes, exacerbating atmospheric dryness and creating favorable conditions for wildfires during the post-snowmelt period. The reveal of these mechanisms has important implications for assessing wildfire risk, enhancing wildfire simulations and forecasting in regions vulnerable to ongoing and future climate change, and projecting carbon-climate feedback. |
| URL标识 | 查看原文 |
| WOS关键词 | FIRE ; VEGETATION ; SENESCENCE ; COVER ; AREA |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001596293800001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217424]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | He, Bin |
| 作者单位 | 1.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Peoples R China; 2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Disaster Risk R, Beijing, Peoples R China; 3.Chalmers Univ Technol, Dept Space Earth & Environm, Div Geosci & Remote Sensing, Gothenburg, Sweden; 4.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China; 5.Univ New Hampshire, Inst Study Earth Oceans & Space, Earth Syst Res Ctr, Durham, NH USA; 6.Akesu Natl Stn Observat & Res Oasis Agroecosyst, Xinjiang, Peoples R China; 7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China; 8.Peking Univ, Inst Carbon Neutral, Sino French Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing, Peoples R China; 9.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China; 10.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Xu, Hongtao,Chen, Hans W.,Chen, Deliang,et al. The Critical Role of Snowmelt Onset-Driven Vapor Pressure Deficit Variations in Wildfire Dynamics of Northern Latitudes[J]. EARTHS FUTURE,2025,13(10):e2025EF006367. |
| APA | Xu, Hongtao.,Chen, Hans W..,Chen, Deliang.,Xiao, Cunde.,Xiao, Jingfeng.,...&Chu, Yang.(2025).The Critical Role of Snowmelt Onset-Driven Vapor Pressure Deficit Variations in Wildfire Dynamics of Northern Latitudes.EARTHS FUTURE,13(10),e2025EF006367. |
| MLA | Xu, Hongtao,et al."The Critical Role of Snowmelt Onset-Driven Vapor Pressure Deficit Variations in Wildfire Dynamics of Northern Latitudes".EARTHS FUTURE 13.10(2025):e2025EF006367. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。