globalchange  > 过去全球变化的重建
DOI: 10.5194/nhess-19-1055-2019
WOS记录号: WOS:000468202900002
论文题名:
Contrasting large fire activity in the French Mediterranean
作者: Ganteaume, Anne; Barbero, Renaud
通讯作者: Ganteaume, Anne
刊名: NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
ISSN: 1561-8633
出版年: 2019
卷: 19, 期:5, 页码:1055-1066
语种: 英语
WOS关键词: SOUTHERN CALIFORNIA ; WILDFIRE EVENTS ; DRIVING FACTORS ; CLIMATE-CHANGE ; FOREST-FIRES ; FRANCE ; PATTERNS ; WEATHER ; REANALYSIS ; LANDSCAPE
WOS学科分类: Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向: Geology ; Meteorology & Atmospheric Sciences ; Water Resources
英文摘要:

In the French Mediterranean, large fires have significant socioeconomic and environmental impacts. We used a long-term georeferenced fire time series (1958-2017) to analyze both spatial and temporal distributions of large fires (LFs; >= 100 ha). The region was impacted in some locations up to six times by recurrent LFs and 21 % of the total area burned by LFs occurred on a surface that previously burned in the past, with potential impact on forest resilience. We found contrasting patterns between the east and the west of the study area, the former experiencing fewer LFs but of a larger extent compared to the latter, with an average time of occurrence between LFs exceeding 4000 ha < 7 years mostly in the eastern coastal area and > 50 years in the west. This longitudinal gradient in LF return level contrasts with what we would expect from mean fire weather conditions strongly decreasing eastwards during the fire season but is consistent with larger fuel cover in the east, highlighting the strong role of fuel continuity in fire spread. Additionally, our analysis confirms the sharp decrease in both LF frequency and burned area in the early 1990s, due to the efficiency of fire suppression and prevention reinforced at that time, thereby weakening the functional climate-fire relationship across the region.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/138462
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作者单位: Irstea, Mediterranean Ecosyst & Risks, Aix En Provence, France

Recommended Citation:
Ganteaume, Anne,Barbero, Renaud. Contrasting large fire activity in the French Mediterranean[J]. NATURAL HAZARDS AND EARTH SYSTEM SCIENCES,2019-01-01,19(5):1055-1066
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