- The purpose of this study was to document the initial change in vegetative canopy cover
following winter seismic exploration on the North Slope of Alaska. The study conducted herein
focuses solely on the impact to wet sedge meadow vegetation.
The overarching goal of this study is to contribute some level of ecological understanding
with regards to the impacts associated with winter travel.
Objectives specific to the methodologies conducted herein include:
1. To document initial change in canopy structure of wet sedge meadow communities
following disturbance through the use of traditional point sampling methods.
2. Extract canopy structure measurements through the analysis of digital images.
3. Assess the quality of canopy measurements produced from digital images with
reference to those of point sampling.
Documenting the initial level of impact is an important first step in addressing concerns
over off-road activities. In order to better understand the degree to which tundra systems are
influenced by winter travel, continued monitoring of disturbed sites would help provide agency
personnel with valuable information to more effectively regulate standards involved in the
permitting of travel activities. Industry would also benefit from continued monitoring efforts;
being provided with valuable insight to improve methods of travel and limit the extent or level of environmental impact.
Change detection and monitoring studies of this nature would ideally consist of several
years of repeat sampling. Time constraints in this instance limited data collection to a single
field season. The study design, however, was laid out in fashion to be consistent with a longer
term, multiple year research project. Additional ancillary data were collected at each site
location to support a broader research base and more thoroughly document site history
conditions. Not all of the field data were utilized or reported in this paper.
- File scanned at 300 ppi (Monochrome, 24-bit Color) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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- description.provenance : Made available in DSpace on 2012-07-20T17:14:15Z (GMT). No. of bitstreams: 1McKendrickStephen.pdf: 1472924 bytes, checksum: 8d55f90b524d15069b2e922110c8030f (MD5) Previous issue date: 2004