气候变化领域集成服务门户(CCPortal): Enhanced dust emission following large wildfires due to vegetation disturbance

CCPortal

DOI	10.1038/s41561-022-01046-6
	Enhanced dust emission following large wildfires due to vegetation disturbance
	Yu, Yan; Ginoux, Paul
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	878
结束页码	+
卷号	15 期号:11 页码:21
英文摘要	Large wildfires reduce vegetation cover and soil moisture, leaving the temporally degraded landscapes an emergent source of dust emission. However, the global extent of post-fire dust events and their influencing factors remain unexplored. Using satellite measurements of active fires, aerosol abundance, vegetation cover and soil moisture from 2003 to 2020, here we show that 54% of the examined similar to 150,000 global large wildfires are followed by enhanced dust emission, producing substantial dust loadings for days to weeks over normally dust-free regions. The occurrence and duration of post-fire dust emission is controlled primarily by the extent of precedent wildfires and resultant vegetation anomalies and modulated secondarily by pre-fire drought conditions. The intensifying wildfires and drying soils during the studying period have made post-fire dust events one day longer, especially over extratropical forests and grasslands. With the predicted intensification of regional wildfires and concurrent droughts in the upcoming decades, our results indicate a future enhancement of sequential fire and dust extremes and their societal and ecological impacts.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000869337700004
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272542
作者单位	Peking University; Peking University; National Oceanic Atmospheric Admin (NOAA) - USA
推荐引用方式 GB/T 7714	Yu, Yan,Ginoux, Paul. Enhanced dust emission following large wildfires due to vegetation disturbance[J],2022,15(11):21.
APA	Yu, Yan,&Ginoux, Paul.(2022).Enhanced dust emission following large wildfires due to vegetation disturbance.NATURE GEOSCIENCE,15(11),21.
MLA	Yu, Yan,et al."Enhanced dust emission following large wildfires due to vegetation disturbance".NATURE GEOSCIENCE 15.11(2022):21.