A standardized data structure for describing and exchanging data from remeasured growth and yield plots

Proposes standard data definitions and format to facilitate the sharing of growth and yield permanent plot data for the development, testing, and improvement of tree or stand growth models. The data structure presented provides standards for documenting sampling design, plot location and summary descriptors, measurement dates, treatments, site attributes, and individual tree characteristics. Standardized species, crown class, tree class, and tree condition codes are defined for use in the Intermountain Northwest.