Analysis of distributional patterns of tree population in hill evergreen forest by using index of dispersion
1988
Preecha Dhamanonda | Pongsak Sahunalu (Kasetsart Univ., Bangkok (Thailand). Faculty of Forestry, Dept. of Silviculture)
An analysis of spatial distributional pattern of tree population by using index of dispersion (IS-index) was investigated in hill evergreen forest at Huay Nam Dung Watershed Station, Chiang Mai Province, during Mach 1983 to December 1984. One sample plot of 100x100 m2 was laid out and subdivided into 100 subplots (10x10 m2). Stem position of trees with 4.5 cm in DBH and over existing in each subplot were mapped, botanical names were also recorded. The results revealed that total inpividuals, Aeschyanthus sp, Sacosperma arboreau, Glochidion kerrii and Castanopsis ferox showed random distribution, while the rests were contagious distribution.
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