Forest type distribution on a calcareous terrain in western Newfoundland

Abstract

Terrain factors influencing forest type distribution on a calcareous terrain in western Newfoundland were investigated. Landform elements were mapped at a scale of 1:12,500 utilizing air photo interpretation. Minimum and maximum elevation data along with dominant forest type occurrence were determined in the field. Frequencies of landform element and forest type correspondence were tested using a log-linear G2 analysis. Additionally, elevational differences of both landform elements and forest types were analyzed using the Kruskal-Wallis test. Null hypotheses of no significant landform influence on forest type distribution and no significant elevational differentiation of landform elements were rejected. However, no significant direct elevational differentiation of forest types was detected. Results are supportive of the observations of Damman (1967), indicating a primary toposequence control on forest type distribution. Verified forest type–landform associations could aid the development of a statistically based phytogeomorphic mapping system for forest land use management in Newfoundland. Key words: forest type, landform element, phytogeomorphic mapping, air photo interpretation