手法を比較

	森林インベントリサンプリング	森林における生物多様性指数
分野	林学	林学
系統	Process / pipeline	Process / pipeline
提唱年	1973	1948–2004
提唱者	Loetsch, Zöhrer, and Haller	Shannon, Simpson, and Magurran
種類	Statistical sampling pipeline	Analysis and quantification pipeline
原典	Loetsch, F., Zöhrer, F., & Haller, K. E. (1973). Forest Inventory. BLV Verlagsgesellschaft.	Shannon, C. E. (1948). A Mathematical Theory of Communication. The Bell System Technical Journal, 27(3), 379–423.
別名	Forest stand sampling, Timber inventory sampling, Plot-based forest survey	Forest diversity index, Species richness assessment, Shannon index forestry
関連	4	4
概要	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.	Forest biodiversity indices quantify species richness, evenness, and overall diversity in forest ecosystems. Rooted in information theory (Shannon) and statistical ecology (Simpson, Magurran), these indices compress complex multispecies data into interpretable metrics. Applied to forest inventory data, biodiversity indices guide conservation planning, assess ecological health, and track responses to management or disturbance.