SPATIAL POINT PATTERN ANALYSIS OF AVAILABLE TO STUDY THE MIXED FOREST STANDS MOVEMENT IN ATROOSH REGION

Abstract

Spatial patterns of species at different life stages are an important aspect for
understanding causal mechanisms that facilitate species co-existence. Using
Ripley's univariate L(r) and bivariate L12 functions, we analyzed the spatial
patterns of two canopy species at different life stages in mixed forest in Atroosh
egion. By using program PASSAGE V.2, the analysis of L(r) function for species
(a) and the three age class appear regular pattern population, since the type species
( b ) appear light cluster pattern, the relationship between two age classes for
different species appear positive relate, we show the hardly positive relation
appear to L(12) function between the age aj-bm, am-bm, but the negative appear
in three pairs between the age aj-am, ap-am, aj-ap. The growth and develop of age
class (aj) effected of different age class, we believe decreases of number in age
class (aj) result of high competition among the different stages of age. The relation
between species (a, b) for general is positive, both species growth and develop at
presence of the other, we believe the two species dominance in Atroosh forest stay
for a long time.