手法を比較

	森林炭素蓄積量推定	アロメトリーバイオマス方程式
分野	林学	林学
系統	Process / pipeline	Process / pipeline
提唱年	1990s–2010s	1990s–2010s
提唱者	Brown, Chave, and colleagues; IPCC consensus	Chave, Niklas, and forest biometricians
種類	Inventory and quantification pipeline	Model development and application pipeline
原典	IPCC (2019). Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. CH4: Agriculture, Forestry and Other Land Use.	Chave, J., Andalo, C., Brown, S., et al. (2005). Tree Allometry and Improved Estimation of Carbon-Stock and Density in Tropical Forests. Oecologia, 145(1), 87–99.
別名	Forest carbon accounting, Biomass-to-carbon conversion, Forest carbon flux assessment	Biomass allometry, Regression-based biomass prediction, Diameter-to-biomass conversion
関連	4	4
概要	Forest carbon stock estimation quantifies the amount of carbon stored in tree biomass and other forest components, typically expressed in tonnes of carbon per hectare. Formalized by Brown, Chave, and international bodies such as the IPCC and FAO, this method is foundational for climate change mitigation accounting, carbon credits, and monitoring progress toward climate commitments. Accurate carbon assessment enables identification of high-priority reforestation areas and verification of carbon offset projects.	Allometric equations predict tree above-ground or total biomass from easily measured tree dimensions—typically diameter at breast height (DBH), height, and wood density. Grounded in biological allometry (scaling laws) and codified by Chave, Niklas, and others, allometric equations are essential tools for rapid biomass assessment without tree harvesting. Used globally for carbon accounting, yield estimation, and ecosystem characterization.