A growth and yield model for naturally-regenerated mixed shortleaf pine forests in the southern United States of America

Abstract In recent Eucalyptus cold-tolerance trials, E. benthamii has shown good growth rates as well as cold tolerance for USDA Plant Hardiness Zones 8 and 9. This study developed growth and yield models for E. benthamii in the southeastern United States. A network of 182 temporary sample plots of E. benthamii ranging in age from 1.5 to 13.3 years was established, and inventory data were collected. Site quality was determined by fitting a polymorphic site index curve, whereas a function for stand basal area based on age, dominant height, and site occupancy was fitted. Stand-level volume and dry-weight biomass prediction equations were fitted as a function of dominant height and basal area. Based on the growth and yield model results, mean annual increments ranged from 26.4 m3 ha–1 year–1 at rotation age 6 years on the best sites to 13.7 m3 ha–1 year–1 at rotation age 10 years on the poorest sites. This is the first published set of management-oriented models for land managers considering planting E. benthamii in the southeastern United States.

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A Growth and Yield Model for Improved Eastern Cottonwood Plantations in the Lower Mississippi Delta

Southern Journal of Applied Forestry ◽

10.1093/sjaf/15.4.213 ◽

1991 ◽

Vol 15 (4) ◽

pp. 213-216 ◽

Cited By ~ 7

Author(s):

Quang V. Cao ◽

Kenneth M. Durand

Keyword(s):

Populus Deltoides ◽

Mississippi Delta ◽

Basal Area ◽

Site Index ◽

Growth And Yield ◽

Annual Increment ◽

Yield Model ◽

Eastern Cottonwood ◽

Volume Yield ◽

Growth And Yield Model

Abstract A compatible growth and yield model was developed based on remeasurement data collected from 183 plots on unthinned improved eastern cottonwood (Populus deltoides Bartr.) plantations in the lower Mississippi Delta. The Sullivan and Clutter (1972) equation form was selected for predicting cubic-foot volume yield and projecting volume from site index and initial age and basal area. Yield equations explained 97% and 94%, respectively, of the variations in total outside bark and merchantable inside bark volumes. Mean annual increment of merchantable volume culminated between 8 and 15 years, depending on site index and initial basal area. South. J. Appl. For. 15(4):213-216.

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Assessing the Applicability of Growth Models to New Species and Regions: An Example Comparing Mediterranean Maritime Pine in Central Spain to Ponderosa Pine in Southwestern Oregon, USA

Western Journal of Applied Forestry ◽

10.1093/wjaf/22.4.269 ◽

2007 ◽

Vol 22 (4) ◽

pp. 269-277

Author(s):

D. Pascual ◽

D.A. Maguire ◽

F. Bravo

Keyword(s):

Growth Model ◽

Pinus Ponderosa ◽

Ponderosa Pine ◽

Maritime Pine ◽

Growth And Yield ◽

Diameter Growth ◽

Growth Equation ◽

Similar Species ◽

Yield Model ◽

Growth And Yield Model

Abstract Evaluations of response to variable silvicultural treatments play a key role in developing sustainable forest management. To evaluate silvicultural response, a growth and yield model is needed. A comparison between similar species could act as a logical first step toward building a growth and yield model and to test the efficiency of the calibration of an existing ponderosa pine (Pinus ponderosa Dougl. ex Laws.) growth model to a Mediterranean maritime pine (Pinus pinaster Ait. ssp. mesogeensis) growth model. This study aimed at (1) comparing the diameter growth pattern between ponderosa and Mediterranean maritime pine, and (2) assessing the potential of ORGANON for simulating Mediterranean maritime pine growth and yield. The first objective was addressed by fitting a diameter growth equation for Mediterranean maritime pine and comparing it with patterns in ponderosa pine growth represented by the corresponding equation in ORGANON. The second objective was addressed by growing Mediterranean maritime pine as ponderosa pine in ORGANON, conditional on observed diameter growth rates of Mediterranean maritime pine in Spain. The results emphasized the unsuitability of ORGANON for predicting diameter growth of Mediterranean maritime pine in Spain. Mediterranean maritime pine diameter growth depended on basal area in trees with a diameter larger than the subject tree, (BAL) which, in our context is a subrogate of competition from above.

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A method for classifying commercial tree species of an uneven-aged mixed species tropical forest for growth and yield model construction

Forest Ecology and Management ◽

10.1016/s0378-1127(97)00243-0 ◽

1998 ◽

Vol 104 (1-3) ◽

pp. 89-99 ◽

Cited By ~ 15

Author(s):

James Atta-Boateng ◽

John William Moser

Keyword(s):

Tropical Forest ◽

Tree Species ◽

Model Construction ◽

Growth And Yield ◽

Mixed Species ◽

Yield Model ◽

Growth And Yield Model

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Geographic variation in ectoparasitic mites diversity in Tadarida Brasiliensis (Chiroptera, Molossidae)

Iheringia Série Zoologia ◽

10.1590/1678-476620141044451456 ◽

2014 ◽

Vol 104 (4) ◽

pp. 451-456

Author(s):

Tatiana C. Pesenti ◽

Sâmara N. Gomes ◽

Ana M. Rui ◽

Gertrud Müller

Keyword(s):

United States ◽

South America ◽

United States Of America ◽

Its Region ◽

Southern United States ◽

Lower Prevalence ◽

Southern Brazil ◽

Tadarida Brasiliensis ◽

Southern South America ◽

Prevalent Species

Tadarida brasiliensis (Geoffroy, 1824), the Brazilian free-tailed bat, is an insectivorous bat that occurs from southern United States of America to southern South America. In this study we present the first data on diversity of ectoparasitic mites of T. brasiliensis in Brazil. A compilation and analysis of the studies of mite diversity conducted in different points the geographic distribution this bat species are provided. The mites were collected from March 2010 to November 2011 on 160 T. brasiliensis adult bats captured in southern Brazil. Four species of mites have been found: Chiroptonyssus robustipes (Ewing, 1925), Ewingana longa (Ewing, 1938), Ewingana inaequalis (Radford, 1948), and specimens of Cheyletidae. Chiroptonyssus robustipes was the most prevalent species (100%), followed by E. longa (20%), E. inaequalis (10%), and specimens of Cheyletidae (1.25%). The data currently available show that C. robustipes parasitizes T. brasiliensis throughout its region of occurrence, and this mite is highly prevalent and abundant. The two species of Ewingana accompany the geographical distribution of T. brasiliensis, but with much lower prevalence and abundance.

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Predicted Genetic Gains from one Generation of Slash Pine Tree Improvement

Southern Journal of Applied Forestry ◽

10.1093/sjaf/13.1.51 ◽

1989 ◽

Vol 13 (1) ◽

pp. 51-56 ◽

Cited By ~ 11

Author(s):

G. R. Hodge ◽

T. L. White ◽

G. L. Powell ◽

S. M. De Souza

Keyword(s):

First Generation ◽

Pinus Elliottii ◽

Tree Improvement ◽

Slash Pine ◽

Growth And Yield ◽

Yield Model ◽

Individual Tree ◽

Fusiform Rust ◽

Pine Tree ◽

Growth And Yield Model

Abstract Gains over unimproved seed for progeny from first generation--un-rogued, first generation--rogued, and one and one-half generation orchards of slash pine (Pinus elliottii var. elliottii) for individual tree volume at 15 years are predicted to be 10%, 15%, and 19%, respectively. Rustinfection of orchard progeny on sites where unimproved material incurs 50% infection are predicted to be 49%, 41%, and 35% for the three orchard types. Using a growth and yield model that incorporates fusiform rust, gains in individual tree volume and increased rust resistance were combinedto estimate effects on per acre yields. Percent volume per acre gains are predicted to be 7.0%, 13.2%, and 18.0% for the three orchard types. Collection and deployment of the most rust resistant seed to high rust hazard sites raises the gain on these sites and becomes increasingly beneficialas the rust hazard increases. South. J. Appl. For. 13(1): 51-56.

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