土壤2012，Vol.44Issue(2)：345-350,6.
求van Genuchten模型参数的AM-MCMC方法
AM-MCMC Approach to Estimate van Genuchten Model Parameters
摘要
Abstract
This paper adopted the adaptive Metropolis algorithm of Markov chain Monte Carlo approach (AM-MCMC) to estimate the parameters of van Genuchten model, which describes the soil water characteristic curve. The posterior statistics of the van Genuchten model parameters were obtained to estimated the model uncertainty. It was found that the distribution of the posterior means and variances of the model parameters could be obtained. Confidence intervals of the model parameters could be ascertained. It was proved effective and novel in solving van Genuchten equation with this algorithm.关键词
土壤水分特征曲线/van Genuchten模型/AM-MCMC算法Key words
Soil water characteristic curve, van Genuchten model, AM-MCMC algorithm分类
农业科技引用本文复制引用
石晓蕾,徐绍辉,廖凯华..求van Genuchten模型参数的AM-MCMC方法[J].土壤,2012,44(2):345-350,6.基金项目
国家自然科学基金项目(41171183)和水利部公益性行业科研专项经费项目(201201024)资助. （41171183）
