Individual-tree Probability of Survival Model for the Northeastern United States PDF Download
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Author: Richard M. Teck Publisher: ISBN: Category : Forest productivity Languages : en Pages : 16
Book Description
Describes a distance-independent individual-tree probability of survival model for the Northeastern United States. Survival is predicted using a six-parameter logistic function with species-specific coefficients. Coefficients are presented for 28 species groups. The model accounts for variability in annual survival due to species, tree size, site quality, and the tree's competitive position within the stand. Model performance is evaluated using the chi-square goodness-of-fit test. Results are presented for the calibration data and an independent validation data set. The model has been incorporated into NE-TWIGS.
Author: Richard M. Teck Publisher: ISBN: Category : Forest productivity Languages : en Pages : 16
Book Description
Describes a distance-independent individual-tree probability of survival model for the Northeastern United States. Survival is predicted using a six-parameter logistic function with species-specific coefficients. Coefficients are presented for 28 species groups. The model accounts for variability in annual survival due to species, tree size, site quality, and the tree's competitive position within the stand. Model performance is evaluated using the chi-square goodness-of-fit test. Results are presented for the calibration data and an independent validation data set. The model has been incorporated into NE-TWIGS.
Author: Thomas A. More Publisher: ISBN: Category : Recreational surveys Languages : en Pages : 522
Book Description
Long-term recreation planning requires an understanding of recreation participation patterns. This study examined Vermonters' participation in 27 leisure activities from three domains (outdoor, resource based, and indoor) to see how such participation differed in each domain. Indoor activities were the most popular, followed by resource-based activities and general outdoor activities. Overall participation declined with age, though this effect was mitigated somewhat for older parents. Other socioeconomic and demographic variables had limited effects on participation.
Author: Richard M. Teck
Author: Richard M. Teck
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
Author: Northeastern Forest Experiment Station (Radnor, Pa.)
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Author: Thomas A. More