Deriving Effective Soil Water Retention Characteristics from Shallow Water Table Fluctuations in Peatlands

摘要: We have developed a novel and simple approach that can be used to derive effective in situ soil water retention characteristics from field monitoring time series peatlands. The simplicity of the is given by very limited data requirements, which comprise only precipitation, table, and, if relevant, microrelief data. Our built on two main assumptions: (i) for shallow groundwater systems, moisture profile always close hydrostatic equilibrium; (ii) during short periods high storage change due lateral fluxes small compared with precipitation input. Given these assumptions, height table rise event mainly depends characteristics, amount, initial depth, present, microrelief. In this study, dependency was determine van Genuchten parameters Bayesian inversion assuming uniform profile. applied our concept peatland Results indicated observations rises caused events contain sufficient information constrain around wells peatlands plausible ranges. principle, should also applicable other systems. Application limits potential systematic errors are discussed.