Effects of Added Nitrogen on the Availability of Phosphorus to Slash Pine on Two Lower Coastal Plain Soils

Abstract Forest industry in the lower coastal plain of Georgia and Florida is becoming increasingly dependent on harvests from site-prepared plantations. Sound planning for utilization of this plantation resource requires the availability of adequate growth and yield information. This paper presents total and merchantable tree volume equations for cubic foot volumes outside- and inside-bark and taper relationships derived from these equations. The equations are based on 677 trees sampled from 174 site-prepared slash pine (Pinus Elliottii Engelm.) plantations in the flatwoods of Georgia and Florida.

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A Density-Management Diagram for Slash Pine Plantations in the Lower Coastal Plain

Southern Journal of Applied Forestry ◽

10.1093/sjaf/16.4.178 ◽

1992 ◽

Vol 16 (4) ◽

pp. 178-185 ◽

Cited By ~ 17

Author(s):

Thomas J. Dean ◽

Eric J. Jokela

Keyword(s):

Coastal Plain ◽

Pinus Elliottii ◽

Slash Pine ◽

Pine Plantations ◽

Growth And Yield ◽

Graphical Form ◽

Annual Increment ◽

Growing Stock ◽

Management Regimes ◽

Lower Coastal Plain

Abstract Data from 92 regional, midrotation-fertilizer trials were used to develop a density-management diagram for site-prepared slash pine (Pinus elliottii var. elliottii) plantations. The density-management diagram shows the interrelationships of five important stand variables (i.e., quadraticmean diameter (Dq), trees/ac, site height, standing volume/ac, and relative current annual increment) in a graphical form. The diagram can aid foresters in designing and comparing alternative density-management regimes for slash pine. In doing so, foresters can evaluate individualtree and stand level performances in relation to growing stock levels and make field approximations of growth and yield for various density-management regimes. Results indicated that fertilization and soil type had minimal effects on the diagram's isolines. This suggests broad applicabilityof the diagram for fertilized or unfertilized plantations found in the lower Coastal Plain. The use of the diagram is illustrated with three alternative density-management regimes, and a method is presented for estimating midrotation fertilization responses. South. J. Appl. For. 16(4):178-185

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Predicting Diameter Distributions for Site-Prepared Loblolly and Slash Pine Plantations

Southern Journal of Applied Forestry ◽

10.1093/sjaf/16.3.130 ◽

1992 ◽

Vol 16 (3) ◽

pp. 130-133 ◽

Cited By ~ 14

Author(s):

John R. Brooks ◽

Bruce E. Borders ◽

Robert L. Bailey

Keyword(s):

Pinus Taeda ◽

Coastal Plain ◽

Pinus Elliottii ◽

Slash Pine ◽

Pine Plantations ◽

Recovery Method ◽

Parameter Recovery ◽

Pinus Taeda L ◽

Lower Coastal Plain ◽

Diameter Distributions

Abstract Prediction equations for four distribution percentiles and a parameter recovery method together give Weibull-based diameter distributions for site-prepared plantations of loblolly (Pinus taeda L.) and slash (Pinus elliottii Engelm.) pine. Separate sets of equations for the piedmont,upper coastal plain, and lower coastal plain provinces resulted from an analysis of extensive data for both species. South. J. Appl. For. 16(3):130-133.

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Yield Prediction for Mechanically Site-Prepared Slash Pine Plantations

Southern Journal of Applied Forestry ◽

10.1093/sjaf/14.3.104 ◽

1990 ◽

Vol 14 (3) ◽

pp. 104-109 ◽

Cited By ~ 14

Author(s):

Leon V. Pienaar ◽

Henry H. Page ◽

John W. Rheney

Keyword(s):

Coastal Plain ◽

Solid Wood ◽

Slash Pine ◽

Pine Plantations ◽

Yield Prediction ◽

Management Regimes ◽

Solid Wood Product ◽

Permanent Sample Plot ◽

Projection Equations ◽

Lower Coastal Plain

Abstract Simultaneous yield prediction and projection equations are presented for both unthinned and thinned site-prepared slash pine plantations in the lower coastal plain of Georgia and north Florida. These equations were developed from permanent sample plot data representing different planting densities and thinning intensities, replicated at 29 locations throughout the region. An equation is also provided to estimate different solid wood product yields, thus providing information for a realistic evaluation of management regimes with different planting densities, with or without thinning. South. J. Appl. For. 14(3):104-109.

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