气候变化领域集成服务门户(CCPortal): Analysis of forest fire patterns and their relationship with climate variables in Alberta's natural subregions

CCPortal

DOI	10.1016/j.ecoinf.2024.102531
	Analysis of forest fire patterns and their relationship with climate variables in Alberta's natural subregions
	Dastour, Hatef; Ahmed, M. Razu; Hassan, Quazi K.
发表日期	2024
ISSN	1574-9541
EISSN	1878-0512
起始页码	80
卷号	80
英文摘要	Forest fires are significant ecological and environmental phenomena that can be influenced by various climatic factors. This study used fire point records from the Canadian National Fire Database (CNFDB) and interpolated climate data, which include the minimum and maximum air temperature, the average relative humidity, and the precipitation for each subregion of Alberta, Canada, to analyze the patterns and relationships of forest fires and climate variables using trend analysis and anomaly detection methods. The trend analysis was based on the Mann -Kendall test and Sen's slope, which were used to detect the presence and magnitude of monotonic trends in the monthly aggregated data from 1955 to 2022. The anomaly detection is based on the RobustSTL method, which was used to decompose the monthly aggregated data into seasonal, trend, and remainder components, and to identify the periods of significantly high or low values for each component. Most subregions showed a significant increase in temperature and a decrease in humidity, indicating a warming and drying trend due to climate change. Precipitation change was variable across subregions. Human-caused or prescribed forest fires increased significantly in Central Mixedwood, Dry Mixedwood, Lower Foothills, Montane, and Upper Foothills, while lightning-caused forest fires had mixed trends in Dry Mixedwood, Upper Foothills, Central Mixedwood, and Lower Boreal Highlands. The fire occurrence and source were affected by the climate variables in different ways across subregions. The fire occurrence in the Athabasca Plain subregion changed with the air temperature. It was low when the temperature was significantly low, and it was high due to lightning when the temperature was significantly high. The Central Mixedwood subregion had three peaks of lightning-induced fires when the relative humidity was significantly low, and several peaks of fires from human activities and lightning when the air temperature was significantly high. The study also revealed some other interesting patterns and relationships between the climate and fire variables and the forest fire distribution in different subregions, which may help to understand and manage the climate and fire interactions and their implications for forest fire understanding and management in the context of climate change.
英文关键词	Time series analysis; Climate variables; Trend analyses; Anomaly analyses; Fire season
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:001190914300001
来源期刊	ECOLOGICAL INFORMATICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291579
作者单位	University of Calgary
推荐引用方式 GB/T 7714	Dastour, Hatef,Ahmed, M. Razu,Hassan, Quazi K.. Analysis of forest fire patterns and their relationship with climate variables in Alberta's natural subregions[J],2024,80.
APA	Dastour, Hatef,Ahmed, M. Razu,&Hassan, Quazi K..(2024).Analysis of forest fire patterns and their relationship with climate variables in Alberta's natural subregions.ECOLOGICAL INFORMATICS,80.
MLA	Dastour, Hatef,et al."Analysis of forest fire patterns and their relationship with climate variables in Alberta's natural subregions".ECOLOGICAL INFORMATICS 80(2024).