手法を比較

	Pedogenesis Modeling	土壌水分特性曲線
分野	農学	農学
系統	Process / pipeline	Process / pipeline
提唱年	1941 (Jenny's factorial model); process-based numerical models from 1990s onward	1956-1980
提唱者	Hans Jenny (foundational framework); later extended by multiple contributors including Simonson, Hoosbeek, and Bryant	Willard Robert Gardner, Rollin H. Brooks, Arthur T. Corey
種類	Quantitative process-based simulation model	Empirical soil water retention model
原典	Minasny, B., Finke, P., Stockmann, U., Vanwalleghem, T., & McBratney, A. B. (2015). Resolving the integral connection between pedogenesis and landscape evolution. Earth-Science Reviews, 150, 102–120.	Gardner, W. R. (1956). Representation of soil aggregate-size distribution by a logarithmic-normal distribution. Soil Science Society of America Journal, 20(2), 151-153.
別名	soil formation modeling, soil genesis simulation, pedogenic process modeling, quantitative pedology	Water Retention Curve, pF Curve, Characteristic Curve, SWRC
関連	1	3
概要	Pedogenesis modeling is a quantitative method used in agronomy and soil science to simulate the processes by which soils form and evolve over time. Rooted in Hans Jenny's 1941 factorial framework — soil as a function of climate, organisms, relief, parent material, and time — modern approaches translate these conceptual drivers into coupled numerical process equations, allowing researchers to reconstruct past soil states and project future soil properties under changing land use or climate scenarios.	The soil moisture curve (or soil water retention curve, SWRC) describes the relationship between soil water content and soil matric potential (water tension). It characterizes how tightly water is bound in pores of different sizes: large pores drain at low tensions (wet soils), while smaller pores retain water at high tensions (dry soils). Quantifying this relationship is essential for water balance modeling, unsaturated flow prediction, and assessing plant-available water.