手法を比較

	アロメトリーバイオマス方程式	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	Chave, Niklas, and forest biometricians	Bitterlich and classical forestry mensuration
種類	Model development and application pipeline	Measurement pipeline
原典	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.	Bitterlich, W. (1984). The Relascope Idea: Relative Measurements in Forestry. Commonwealth Agricultural Bureaux.
別名	Biomass allometry, Regression-based biomass prediction, Diameter-to-biomass conversion	Dendrometric height, Tree elevation measurement, Stand height determination
関連	4	4
概要	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.	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.