Browsing Society for Range Management Journal Archives by Authors
A Method for Mapping Vegetation Utilizing Multivariate Statistical TechniquesMcLendon, T.; Dahl, D. E. (Society for Range Management, 1983-07-01)Principal component analysis and stepwise discriminant analysis were used to map the vegetation of the Pat Welder Ranch on the Texas Coastal Plains into 5 vegetation types based on relative frequency data of the major plant species. These 5 types were shown to be subdivisions of 2 plant communities previously reported for the area by researchers utilizing conventional mapping techniques. In addition to separating the 5 types and classifying the 140 sample points into their respective types, the technique provided a key for field separation of the types based on 3 vegetative variables, and provided indicator species values for rapid field identification of the types. The technique is presented as a means of mapping vegetation with a minimum of human bias, a maximum of repeatability and information content, and maximum applicability.