气候变化领域集成服务门户(CCPortal): Diurnal fuel moisture content variations of live and dead Calluna vegetation in a temperate peatland

CCPortal

DOI	10.1038/s41598-024-55322-z
	Diurnal fuel moisture content variations of live and dead Calluna vegetation in a temperate peatland
	Lewis, C. H. M.; Little, Kerryn; Graham, Laura J.; Kettridge, Nicholas; Ivison, Katy
发表日期	2024
ISSN	2045-2322
起始页码	14
结束页码	1
卷号	14 期号:1
英文摘要	The increasing frequency and severity of UK wildfires, attributed in part to the effects of climate change, highlights the critical role of fuel moisture content (FMC) of live and dead vegetation in shaping wildfire behaviour. However, current models used to assess wildfire danger do not perform well in shrub-type fuels such as Calluna vulgaris, requiring in part an improved understanding of fuel moisture dynamics on diurnal and seasonal scales. To this end, 554 samples of upper live Calluna canopy, live Calluna stems, upper dead Calluna canopy, dead Calluna stems, moss, litter and organic layer (top 5 cm of organic material above mineral soil) were sampled hourly between 10:00 and 18:00 on seven days from March-August. Using a novel statistical method for investigating diurnal patterns, we found distinctive diurnal and seasonal trends in FMC for all fuel layers. Notably, significant diurnal patterns were evident in dead Calluna across nearly all sampled months, while diurnal trends in live Calluna canopy were pronounced in March, June, and August, coinciding with the peak occurrence of UK wildfires. In addition, the moisture content of moss and litter was found to fluctuate above and below their relative ignition thresholds throughout the day on some sampling days. These findings underscore the impact of diurnal FMC variations on wildfire danger during early spring and late summer in Calluna dominated peatlands and the need to consider such fluctuations in management and fire suppression strategies.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001177603900069
来源期刊	SCIENTIFIC REPORTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297767
作者单位	University of Birmingham; International Institute for Applied Systems Analysis (IIASA)
推荐引用方式 GB/T 7714	Lewis, C. H. M.,Little, Kerryn,Graham, Laura J.,et al. Diurnal fuel moisture content variations of live and dead Calluna vegetation in a temperate peatland[J],2024,14(1).
APA	Lewis, C. H. M.,Little, Kerryn,Graham, Laura J.,Kettridge, Nicholas,&Ivison, Katy.(2024).Diurnal fuel moisture content variations of live and dead Calluna vegetation in a temperate peatland.SCIENTIFIC REPORTS,14(1).
MLA	Lewis, C. H. M.,et al."Diurnal fuel moisture content variations of live and dead Calluna vegetation in a temperate peatland".SCIENTIFIC REPORTS 14.1(2024).