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Comparison of Systematic Line-Point and Double Sampling Designs for Pine and Hardwood Forests in the Western Gulf

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This study compared systematic line-point sampling (SS) and double sampling (DS) methodologies on an operational basis for four typical forest cover types found in the Western Gulf Coastal Plain. The purpose was to determine whether DS saves time while not sacrificing precision in an operational cruise. DS cruises were more efficient than SS controls (standard of comparison) 50%–80% of the time, depending on the forest cover type. For these cruises, gains in efficiency ranged from 33 to 106%. Gains were associated with increased precision rather than total time savings, which is ideal for sale cruises. An additional DS cruise design, which would be ideal for management cruises, was evaluated and resulted in time savings with slight loss of precision.
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Keywords: double sampling; inventory; simple random sampling; systematic sampling; timber cruising

Document Type: Research Article

Publication date: 2007-11-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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