Development
of a GIS Database for Forest Research, Management, and Damage Assessment
Funded
by NCSU and the College of Forest Resources
Heather
M. Cheshire and Hugh Devine
The Hill Forest is a demonstration
forest managed by the NCSU College of Forest Resources and used for
teaching, research, and timber operations. It encompasses approximately
2,450 acres in north central Durham County.
The objectives of this project
were to (1) delineate timber damage caused by hurricane Fran; (2) convert
timber damage data to digital form; and (3) develop a GIS data base
for use in management, planning, research, and analysis.
GIS data were collated from
existing sources including stand tabular data. Digital orthophoto quarter
quadrangles were acquired for the area. Locations of critical sites
on the forest, such cemeteries, abandoned houses, and benchmarks, were
determined using GPS. A sample of roads were also collected using GPS
to compare with road positions from existing sources. Timber damage
polygons were assessed using black and white aerial photography taken
in February, 1997 at a scale of 1:6000. Polygons were transferred to
a map base and digitized.
In addition to timber damage
polygons, the completed database includes hydrography, topography, soils,
roads, stand and stand attribute data, and critical features. The database
will be used in subsequent studies focused on predicting where hurricane
damage is most likely to occur and on methods of quickly assessing timber
volume losses due to hurricane damage. The database will also be used
in forest management and teaching.

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