SORTIE-NDSoftware for spatially-explicit simulation of forest dynamics
These tools are contributed by our users, to do a potentially wide range of helpful tasks associated with SORTIE-ND research projects. They are intended to be helpful, with no warranty or support implied. If you use them, proper attribution is required. If you would like to contribute a tool, please contact Lora Murphy at email@example.com.
GLI Ray Tracer
Owners: Lora Murphy and Charles Canham.
This program takes as input a set of trees and a set of light rays and determines, for each ray, which trees intersect it. A help file can be found here. This tool is available as Java source code. You are responsible for compiling and running the code.
Download this 57 Kb file: GLI_Ray_Tracer.zip
GLI Ray Tracer, UQAM Version
Owners: Frédéric Boivin and Anil Ediriweera.
This is a modification of the GLI Ray Tracer program, with different allometry functions:
Download this 90 Kb file: AnilVersion.zip
Harvest with Advanced Regeneration Protection (HARP)
Owner: Mark Vanderwel
This program implements a harvest prescription termed HARP (Harvest with Advanced Regeneration Protection). It is a combination of stripcutting (all trees are cut along parallel vertical skid trails) and diameter-limit cutting (all trees above a lower diameter threshold are cut). It is designed to be implemented through the Harvest Interface feature of SORTIE, and can be combined with the Lagged Post Harvest Growth and Post Harvest Skidding Mortality behaviors. This is as published in Thorpe et al 2010.
Download this 8 Kb file: HARP.zip
Spatial Partial Harvest
Owner: Mark Vanderwel
This program implements a partial harvest prescription that is specified in terms of intensity and spatial pattern. It is designed to be implemented through the Harvest Interface feature of SORTIE. This is as published in Vanderwel et al 2011.
Download this 274 Kb file: sph.zip
Selection Harvest Module Source Code
Owner: Mike Fuller
This is the source code for an external module that works with the Harvest Interface behavior in SORTIE. The classes implement single-tree and group cutting silviculture, and permit the user to set rough basal-area targets for different stem size classes (e.g. "cut 30% of size class A", etc.).
Find more information and download on GitHub: https://github.com/impactanalysts/selection-harvests-in-SORTIE-ND