手法を比較

	森林炭素蓄積量推定	樹高測定
分野	林学	林学
系統	Process / pipeline	Process / pipeline
提唱年	1990s–2010s	1950s–2000s
提唱者	Brown, Chave, and colleagues; IPCC consensus	Bitterlich and classical forestry mensuration
種類	Inventory and quantification pipeline	Measurement pipeline
原典	IPCC (2019). Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories. CH4: Agriculture, Forestry and Other Land Use.	Bitterlich, W. (1984). The Relascope Idea: Relative Measurements in Forestry. Commonwealth Agricultural Bureaux.
別名	Forest carbon accounting, Biomass-to-carbon conversion, Forest carbon flux assessment	Dendrometric height, Tree elevation measurement, Stand height determination
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.	Tree height measurement—determining the vertical distance from ground to tree top—is a cornerstone of forest inventory and biomass estimation. Ranging from classical optical instruments (clinometer, Abney level) to modern laser hypsometers and airborne LiDAR, tree height quantification enables calculation of volume, biomass, site index (productivity), and forest structural characterization essential for management, research, and carbon accounting.