The Douglas-fir/white spirea habitat type in central Idaho: succession and management

Abstract

The succession classification system is based on reconnaissance sampling of 202 stands. A total of 10 potential tree layer types, 35 shrub layer types, and 45 herb layer types are categorized by a hierarchical taxonomic classification. Diagnostic keys based on indicator species are provided for field identification of the layer types. Implications for natural resource management are discussed based on field data and observations. These include: potential for pocker gopher damage and success of tree plantations by site preparation treatments, initial growth rates of tree seedlings and yield capability of mature trees, microsite needs of natural tree seedlings, big-game and livestock forage preferences, and responses of species to various disturbances. Species composition data for each of the sampled shrub and herb layer types are displayed in appendices. -from Authors