Probability Density Functions, Summary Stats, Coverage Map, and Data Sources for EVT Group fuelbed:

NOTE Some strata do not display in the graph; fitted distributions were only calculated for strata having >=30 non-zero observations.
TIP Mouseover a legend entry to zoom to that stratum's distribution curve.
TIP Click on a group name (e.g. 'AGGREGATE', 'CWD','FWD', etc.) in the table below to load that group's fuel strata to the graph.

Summary statistics

	Fuel stratum (aggregate)	Units	n obs.	Mean	STD	Q25%	Q50%	Q75%	Min.	Max.	% obs. == 0
aggregate	Trees	Mg/ha	123	181.5	170.9	55.1	134.1	274.1	2.5	1126.6	0.0
	Snags	Mg/ha	123	11.1	22.7	0.0	2.7	11.6	0.0	132.7	0.3
	Shrub	Mg/ha	140	2.3	1.8	1.3	2.0	2.8	0.0	13.1	0.1
	Herbaceous	Mg/ha	144	0.5	0.9	0.1	0.3	0.6	0.0	10.2	0.1
	FWD	Mg/ha	165	6.3	8.5	2.0	3.8	7.4	0.0	66.6	0.1
	CWD	Mg/ha	165	10.3	15.3	1.2	5.1	13.6	0.0	121.2	0.2
	Litter	Mg/ha	155	12.8	21.3	5.4	8.7	12.8	0.0	218.5	0.0
	Duff	Mg/ha	143	12.3	14.2	2.1	7.9	19.9	0.0	100.7	0.1
	Fuel stratum (detail)	Units	n obs.	Mean	STD	Q25%	Q50%	Q75%	Min.	Max.	% obs. == 0
live	Tree crown	Mg/ha	0	--	--	--	--	--	--	--	--
	Overstory	Mg/ha	0	--	--	--	--	--	--	--	--
	Midstory	Mg/ha	0	--	--	--	--	--	--	--	--
	Understory	Mg/ha	0	--	--	--	--	--	--	--	--
	Herb. % live	%	3	100.0	0.0	100.0	100.0	100.0	100.0	100.0	--
cwd	CWD sound	Mg/ha	42	6.3	9.8	0.4	2.0	7.7	0.0	42.2	0.2
	CWD rotten	Mg/ha	42	5.2	9.1	0.0	1.8	4.0	0.0	40.2	--
	1k-hr	Mg/ha	46	4.4	4.0	1.4	3.5	6.1	0.0	20.0	0.1
	1k-hr sound	Mg/ha	46	2.6	3.2	0.0	1.3	4.3	0.0	10.6	0.3
	1k-hr rotten	Mg/ha	46	1.8	3.2	0.0	0.7	2.8	0.0	20.0	--
	10k-hr	Mg/ha	42	5.9	9.0	0.0	0.0	9.3	0.0	35.4	--
	10k-hr sound	Mg/ha	42	3.1	6.5	0.0	0.0	0.0	0.0	26.9	--
	10k-hr rotten	Mg/ha	42	2.8	6.2	0.0	0.0	0.0	0.0	30.4	--
	>10k-hr	Mg/ha	42	0.9	4.3	0.0	0.0	0.0	0.0	21.7	--
	>10k-hr sound	Mg/ha	42	0.4	2.8	0.0	0.0	0.0	0.0	18.0	--
	>10k-hr rotten	Mg/ha	42	0.5	3.4	0.0	0.0	0.0	0.0	21.7	--
fwd	1-hr	Mg/ha	165	0.4	0.5	0.1	0.2	0.4	0.0	3.8	0.1
	10-hr	Mg/ha	183	1.9	2.6	0.4	1.0	2.1	0.0	15.9	0.1
	100-hr	Mg/ha	183	4.4	6.7	0.9	2.4	5.4	0.0	55.6	0.2
floor	Duff depth	cm	20	2.8	1.7	1.8	2.6	3.6	0.0	5.9	--
	Litter depth	cm	17	1.9	1.1	1.1	1.7	2.8	0.4	4.1	--
	Lichen	Mg/ha	0	--	--	--	--	--	--	--	--
	Moss	Mg/ha	0	--	--	--	--	--	--	--	--
	Litt./Lich./Moss	Mg/ha	155	12.8	21.3	5.4	8.7	12.8	0.0	218.5	--

Coverage map

Total area: 29,573 km²

Data sources

b'Chojnacky, D.C.; Blinn, C. E; Prisley, S.P. 2013. Web application to access and visualize FIA down woody materials data. Journal of Forestry, 111(2): 132\xe2\x80\x93138. http://web.gis.vt.edu/forestry/dwm.'
b'Kittredge, J. 1955a. Some characteristics of forest floors from a variety of forest types in California. Journal of Forestry 53(9):645-647.'
b'Loadings from the LANDFIRE Public Reference Database (https://www.landfire.gov/NationalProductDescriptions27.php) which sourced these data as: Vegetation composition, structure, and fuel-loading data collected by the Bureau of Land Management collected following FIREMON protocols within the Medford District, Oregon.'
b'Loadings from the LANDFIRE Public Reference Database (https://www.landfire.gov/NationalProductDescriptions27.php) which sourced these data as: Vegetation composition, structure, and fuel-loading data collected by the US Forest Service from the Gila National Forest Complex, New Mexico, as part of a fire management study.'
b'Loadings from the LANDFIRE Public Reference Database (https://www.landfire.gov/NationalProductDescriptions27.php) which sourced these data as: Vegetation composition, structure, and fuel-loading data drawn from the US Forest Service Region 6 Current Vegetation Survey System, Version 3.2. (Data credit: USDA Forest Service, Mt. Hood National Forest).'
b'Loadings from the LANDFIRE Public Reference Database (https://www.landfire.gov/NationalProductDescriptions27.php) which sourced these data as: Vegetation composition, structure, and fuel-loading data drawn from the US Forest Service Region 6 Current Vegetation Survey System, Version 3.2. (Data credit: USDA Forest Service, Rogue River National Forest).'
b'Loadings from the LANDFIRE Public Reference Database (https://www.landfire.gov/NationalProductDescriptions27.php) which sourced these data as: Vegetation composition, structure, and fuel-loading data drawn from the US Forest Service Region 6 Current Vegetation Survey System, Version 3.2. (Data credit: USDA Forest Service, Siskiyou National Forest).'
b'Ottmar, R.D., Vihnanek, R.E., Wright, C.S. and Olson, D.L. 2004. Stereo photo series for quantifying natural fuels. Volume VII:Oregon white oak, California deciduous oak, and mixed-conifer with shrub types in the Western United States. PMS 839. Boise, ID:National Wildfire Coordinating Group, National Interagency Fire Center. 75 p.'
b'Ottmar, R.D., Vihnanek, R.E., Wright, C.S., and Seymour, G.B. 2007. Stereo photo series for quantifying natural fuels. Volume IX:oak/juniper in southern Arizona and New Mexico. Gen. Tech. Rep. PNW-GTR-714. Portland, OR:U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 41 p.'
b'Van Wagtendonk, J. W., Benedict, J. M., & Sydoriak, W. M. 1998. Fuel bed characteristics of Sierra Nevada conifers.\xc2\xa0Western Journal of Applied Forestry\xc2\xa013(3):73-84.'

North American Wildland Fuels Database

Summary statistics

Coverage map

Data sources