气候变化领域集成服务门户(CCPortal): Pile age and burn season influence fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation when burning hand piles

CCPortal

DOI	10.1016/j.foreco.2019.02.005
	Pile age and burn season influence fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation when burning hand piles
	Wright C.S.; Evans A.M.; Grove S.; Haubensak K.A.
发表日期	2019
ISSN	0378-1127
起始页码	146
结束页码	158
卷号	439
英文摘要	Piling and burning is widely used to dispose of unmerchantable debris resulting from thinning in forests throughout the western United States. Quite often more piles are created than are burned in a given year, however, causing piles to persist, accumulate, and age on the landscape. The effects of burning piles of increasing age has not been studied. We examined the effects of time since construction (i.e., pile age, in roughly six month increments for two years) and burn season (fall and spring) on fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation for hand-constructed piles in thinned ponderosa pine-dominated sites in New Mexico (n = 50 piles) and Washington (n = 49 piles). Piles compacted over time similarly for both study sites, losing approximately 15% of their height annually for the first two years following piling. Peak flame height decreased and the duration of flaming combustion increased with increasing pile age for both burn seasons in New Mexico, yet depended on burn season in Washington. Increasing fuel moisture and compaction reduced peak flame height and increased flaming duration modestly for both sites. Peak flame height was reduced 6–7 cm and flaming duration increased 0.9–2.3 min for every percentage increase in small fuel moisture. Similarly, peak flame height was reduced 4–5 cm and flaming duration increased 0.6–0.8 min for every percentage reduction in pile height. Fuel consumption was high, averaging 90% in New Mexico and 95% in Washington. Fuel consumption patterns differed between locations, however; fuel consumption decreased with age and was slightly higher for spring than fall burns in New Mexico, whereas, neither pile age nor burn season affected fuel consumption in Washington. Charcoal formation as a fraction of pre-burn pile weight averaged 2.8% in New Mexico and 1.2% in Washington, and was not affected by pile age or burn season. Fuel consumption and charcoal production were unaffected by fuel moisture or compaction levels at either site. Findings from this study will inform fuel and fire managers about the potential effects on fire behavior, fuel consumption, and charcoal formation of burning piles of different age in different seasons under different environmental conditions. © 2019
英文关键词	Charcoal; Dry conifer forest; Flame height; Flaming duration; Fuel treatment; Pile burning
语种	英语
scopus关键词	Charcoal; Combustion; Compaction; Forestry; Fuels; Moisture; Conifer forests; Flame height; Flaming duration; Fuel treatments; Pile burning; Piles; charcoal; combustion; coniferous forest; dry forest; environmental conditions; fuel consumption; landscape; pile; seasonal variation; Charcoal; Combustion; Compaction; Forestry; Fuels; Moisture; New Mexico; United States; Washington [United States]; Coniferophyta
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156084
作者单位	USDA Forest Service, Pacific Northwest Research Station, Pacific Wildland Fire Sciences Laboratory, 400 North 34th Street, Suite 201, Seattle, WA 98103, United States; The Forest Stewards Guild, 2019 Galisteo Street, Suite N7, Santa Fe, NM 87505, United States; Northern Arizona University, Department of Biological Sciences & Center for Ecosystem Science and Society, 617 S. Beaver Street, Flagstaff, AZ 86011-5640, United States
推荐引用方式 GB/T 7714	Wright C.S.,Evans A.M.,Grove S.,et al. Pile age and burn season influence fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation when burning hand piles[J],2019,439.
APA	Wright C.S.,Evans A.M.,Grove S.,&Haubensak K.A..(2019).Pile age and burn season influence fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation when burning hand piles.Forest Ecology and Management,439.
MLA	Wright C.S.,et al."Pile age and burn season influence fuelbed properties, combustion dynamics, fuel consumption, and charcoal formation when burning hand piles".Forest Ecology and Management 439(2019).