Modelling incidence of root rot in picea abies plantations in Southern Sweden

摘要: An empirical model is presented to forecast the incidence of root rot at stand level. In addition, impact different thinning programmes on evaluated. The based data from 152 permanent forest research plots pure Picea abies in southern Sweden, within which stump height thinned trees has been recorded after each since 1950. total, about 20 000 stumps have studied. According simulations with model, areas previously used as fields or for grazing are particularly susceptible rot, while old hardwood sites less susceptible. Furthermore, imply that earlier, harder more often a thinned, faster will be development rot.