手法を比較

	アロメトリーバイオマス方程式	森林インベントリサンプリング
分野	林学	林学
系統	Process / pipeline	Process / pipeline
提唱年	1990s–2010s	1973
提唱者	Chave, Niklas, and forest biometricians	Loetsch, Zöhrer, and Haller
種類	Model development and application pipeline	Statistical sampling 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.	Loetsch, F., Zöhrer, F., & Haller, K. E. (1973). Forest Inventory. BLV Verlagsgesellschaft.
別名	Biomass allometry, Regression-based biomass prediction, Diameter-to-biomass conversion	Forest stand sampling, Timber inventory sampling, Plot-based forest survey
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.	Forest inventory sampling is a systematic approach to estimate forest characteristics such as timber volume, species composition, and biomass by surveying a representative subset of trees rather than conducting exhaustive censuses. Developed by Loetsch and colleagues in the 1970s, the method applies statistical sampling theory to forest assessment and remains the foundation for sustainable forest management and resource monitoring worldwide.