手法を比較

	森林火災リスク評価	林冠被覆率の推定
分野	林学	林学
系統	Process / pipeline	Process / pipeline
提唱年	1950s–2000s	2000s
提唱者	Van Wagner, Rothermel, and fire ecology research community	Jennings, Brown, Sheil, and colleagues
種類	Assessment and modeling pipeline	Measurement and estimation pipeline
原典	Agee, J. K. (2000). The Ecology of Pacific Northwest Forests. Island Press.	Jennings, S. B., Brown, N. D., & Sheil, D. (2000). Assessing Forest Canopies and Understorey Illumination: Methods and Applications. Forest Ecology and Management, 129(1-3), 219–243.
別名	Wildfire risk assessment, Fire hazard mapping, Burn severity prediction	Canopy closure measurement, Crown cover estimation, Overstory density assessment
関連	4	4
概要	Forest fire risk assessment quantifies the probability and potential severity of wildfire in forest ecosystems, integrating stand structure, fuel characteristics, weather patterns, and topography. Developed by Van Wagner, Rothermel, and fire science communities, fire risk models predict fire ignition likelihood, fire behavior (spread rate, intensity), and consequences (area burned, damage extent). Essential for land management planning, community protection, and ecosystem conservation.	Canopy cover, or canopy closure, is the proportion of ground area covered by tree crowns when viewed from above, typically expressed as a percentage. Formalized by Jennings and colleagues in pioneering work on tropical forest structure, canopy cover estimation employs multiple methods—from field-based ocular assessment to sophisticated remote sensing and terrestrial LiDAR—providing essential data on forest structure, light availability, and habitat characteristics relevant to ecology, silviculture, and climate research.