Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Parker, Robert C.
Committee Member
Londo, Andrew J.
Committee Member
Evans, David L.
Committee Member
Jones, Jeanne C.
Date of Degree
5-5-2007
Document Type
Graduate Thesis - Open Access
Major
Forestry
Degree Name
Master of Science
College
College of Forest Resources
Department
Department of Forestry
Abstract
A three dimensional sampling technique was used to compare field understory conditions in Southeastern Louisiana using a laser range finder at three height levels (0.5m, 1.0m, and 1.5m) to LiDAR generated understory conditions to determine if a relationship existed. A similar comparison was made between densitometer crown closure measurements and understory LiDAR vegetation counts. A comparison between overstory LiDAR counts and understory LiDAR counts was also performed. LiDAR and understory counts exhibited a significant linear relationship but were poorly correlated at each sample level (Level-1 R2 = 0.34 ? 0.38, Level-2 R2 = 0.36 ? 0.43). The Level-3 LiDAR slope coefficient was non-significant. The crown closure versus understory linear model did not produce any significant results. The overstory LiDAR versus understory LiDAR model produced a moderate correlation (R2 = 0.5226) and was significant. The process of relating LiDAR points to understory conditions was not repeatable, even in the same geographic region.
URI
https://hdl.handle.net/11668/16183
Recommended Citation
Clarkson, Matthew Thomas, "An Evaluation of a 3D Sampling Technique and LiDAR for the Determination of Understory Vegetation Density Levels in Pine Plantations" (2007). Theses and Dissertations. 518.
https://scholarsjunction.msstate.edu/td/518
