Notes: Volume Growth Estimation From Permanent Horizontal Points

Authors: Van Deusen, Paul C.; Dell, Tommy R.; Thomas, Charles E.

Source: Forest Science, Volume 32, Number 2, 1 June 1986 , pp. 415-422(8)

Publisher: Society of American Foresters

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Abstract:

Net change in volume (V) from time 1 to time 2 can be attributed to the components of ingrowth (I), survivor growth (S), mortality (M), and cut (C) (Beers 1962) as follows: V2 - V1 = I + S - M - C. Traditional point sampling methods for estimating the right-side growth components often lead to an inequality with the left-side estimate of net change. This paper shows concisely why this occurs. A new estimator for survivor growth is developed which ensures equality between estimates of net change and the components thereof. Forest Sci. 32:415-422.

Keywords: Survivor growth; forest growth; forest inventory; point sampling

Document Type: Miscellaneous

Affiliations: Research Forester, USDA Forest Service, Southern Forest Experiment Station, Starkville, MS 39759

Publication date: June 1, 1986

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  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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