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A Survival Model for Shortleaf Pine Tress Growing in Uneven-Aged StandsAuthor(s): Thomas B. Lynch; Lawrence R. Gering; Michael M. Huebschmann; Paul A. Murphy
Source: Paper presented at the Tenth Biennial Southern Silvicultural Research Conference, Shreveport. LA, February 16-18, 1999
Publication Series: Miscellaneous Publication
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DescriptionA survival model for shortleaf pine (Pinus echinata Mill.) trees growing in uneven-aged stands was developed using data from permanently established plots maintained by an industrial forestry company in western Arkansas. Parameters were fitted to a logistic regression model with a Bernoulli dependent variable in which "0" represented individual tree survival and "0" represented individual tree mortality. Predictions from the model can be interpreted as probabilities of survival. The most important independent variable for prediction of survival probability was the ratio of quadratic mean stand d.b.h. to tree d.b.h. The data were used to evaluate the performance of the model by d.b.h. classes. The model was developed for use in an individual-tree growth simulator for uneven-aged shortleaf pine forests.
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CitationLynch, Thomas B.; Gering, Lawrence R.; Huebschmann, Michael M.; Murphy, Paul A. 1999. A Survival Model for Shortleaf Pine Tress Growing in Uneven-Aged Stands. Paper presented at the Tenth Biennial Southern Silvicultural Research Conference, Shreveport. LA, February 16-18, 1999
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