Geoadditive Bayesian models for forestry defoliation data: a case study


Musio, M., Augustin, N. H. and von Wilpert, K., 2008. Geoadditive Bayesian models for forestry defoliation data: a case study. Environmetrics, 19 (6), pp. 630-642.

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We analyze forestry defoliation data from the Emission Impact and Forest Nutrition (IWE) survey, which was carried out in Baden-Württemberg, Germany in the year 1988. The survey contains information on individual trees such as the degree of defoliation, age, species and measurements on nutrients in the needles, as well as information on tree locations such as soil and geographical characteristics. Our goal is to find suitable predictors for tree defoliation from the above information, and to find a set of models which can explain the underlying biological and environmental processes. To model the spatial correlation in the data and possible nonlinear effects of the covariates we use a geoadditive hierarchical Bayesian model. Posterior inference and model comparison are computationally assessed via Markov Chain Monte Carlo (MCMC) techniques and deviance information criterion (DIC) respectively.


Item Type Articles
CreatorsMusio, M., Augustin, N. H. and von Wilpert, K.
Related URLs
DepartmentsFaculty of Science > Mathematical Sciences
Research CentresCentre for Mathematical Biology
ID Code7035


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