Ministry of Forests Forest Science Program
		Abstract for FRDA Report 244

		Identification and Simulation of the Spatial Pattern of Juvenile Lodgepole Pine in the Sub-Boreal Spruce Biogeoclimatic Zone, Stuart Dry Warm and Babine Moist Cold Variants
		Author or Ministry Contact: Gordon D. Nigh
		Branch: Research
		Subject: Growth and Yield
		Series: FRDA Report
		Other details: Published February 1996

Abstract

The spatial pattern of trees in lodgepole pine sites in the SBSdw3 and SBSmc2 biogeoclimatic variants were identified and modelled. The K(t) statistic was used to detect the patterns and provide a basis for determining an appropriate spatial process model. Most sites had an aggregated pattern, which was modeled effectively by a Poisson cluster process. The clusters range in size and intensity from many small clusters to a few dense tightly packed clusters, to large wide-spread clusters. An equation describing the relationship between the parameters of the Poison cluster process model was developed. Random and regular patterns occurred equally often. The random patterns were modelled by a Poisson process. The regular patterns were modelled with a Markov point process and alattice-based process; the former model resulted in better simulations.

Download FRDA Report 244 (1922KB)
	To view this document you need the Adobe Acrobat Reader, available for free at the Adobe Web Site.