AAU-ETD AAU-ETD
 

Addis Ababa University Libraries Electronic Thesis and Dissertations: AAU-ETD! >
Faculty of Science >
Thesis - Physics >

Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2640

Title: LATTICE GEOMETRY, GAP FORMATION AND SCALE-INVARIANCE
Authors: Seid, Mohammed
Advisors: Dr. Tatak Yirgou
Keywords: LATTICE GEOMETRY
SCALE-INVARIANCE
Copyright: Jun-2010
Date Added: 6-May-2012
Publisher: AAU
Abstract: In this work, we analyze the gap dynamics of forest in connection with lattice geometry. we also analyze the establishment (birth), growth and mortality (death) of individual trees of Barro Colorado Island (BCI) forest using two slightly different forest disturbance models on three lattices, each with square, triangular, and hexagonal geometry in order to study the effect of geometry. Local nature of ecological interaction can generate complex behaviors such as criticality (scale-invariance). we fit the global and local densities and cluster size distribution from the spatial map of the forest (1983-1984). we also found an effect of geometry on the conditions under which criticality appears in model forests. The scaling exponent of the gap-size distributions, however, was found to be independent of model and geometry.
URI: http://hdl.handle.net/123456789/2640
Appears in:Thesis - Physics

Files in This Item:

File Description SizeFormat
18053670087112291994082538113423303809317.83 kBAdobe PDFView/Open

Items in the AAUL Digital Library are protected by copyright, with all rights reserved, unless otherwise indicated.

 

  Last updated: May 2010. Copyright © Addis Ababa University Libraries - Feedback