Forest statistics for Louisiana Parishes - 1991

Vissage, John S.; Miller, Patrick E.; Hartsell, Andrew J.

doi:10.2737/so-rb-168

Cited by 3 publications

(3 citation statements)

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“…The FIA sample plots were located at the forested intersections of gridlines spaced 4.83 km apart and covering the entire state. Summaries of the 1984 and 1991 FIA data for Louisiana, descriptions of the data collection procedures, and maps showing plot locations can be found in May and Bertelson (1986) and Vissage et al (1992), respectively. Point sampling techniques with a basal area factor (BAF) of 8.61 m 2 •ha -1 were used to determine whether or not a tree was included in the sample.…”

Section: Datamentioning

confidence: 99%

Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana

Cao

Li²,

McDill

2002

Can. J. For. Res.

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An individual tree growth modeling system was developed for the loblolly pine (Pinus taeda L.) shortleaf pine (Pinus echinata Mill.) forest type in Louisiana using USDA Forest Service Forest Inventory and Analysis (FIA) data. In this study, the loblolly pine shortleaf pine forest type was divided into three species groups: loblolly pine, other pines, and hardwoods. The growth system includes models for individual tree survival, diameter growth, height growth, and change in crown ratio for each of the three species groups. A multivariate extension of a two-step, model-based interpolation method is proposed to estimate parameters of annual tree growth equations based on measurements from 7-year growth periods. Results based on evaluation statistics such as mean difference, mean absolute difference, and fit index show that the two-step interpolation method is clearly superior to the averaging method, which is a typical linear interpolation method. The two-step method produced growth equations that project tree and plot attributes more accurately than the averaging method. Additionally, a Monte Carlo simulation analysis reveals that parameter estimates obtained from the two-step method are closer to the true parameter values than those from the averaging method. The approach described here should be useful for estimating parameters of other systems of annual tree growth equations from periodic measurements. Models such as the one presented here may be useful for projecting the characteristics of undisturbed forest inventory plots, e.g., FIA plots, and providing more up-to-date inventory estimates.

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Section: Datamentioning

confidence: 99%

Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana

Cao

Li²,

McDill

2002

Can. J. For. Res.

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“…4,000 years B.P., with consequent delta building, allowed expansion of cypress-tupelo forests in this region. Vissage et al 1992). Data were from plots laid out on a 4.8 km grid throughout the region.…”

Section: Coastal Forest Change During the Holocenementioning

confidence: 99%

Sea-level rise and coastal forests on the Gulf of Mexico

Williams¹,

Pinzon²,

Stumpf³

et al. 1999

Open-File Report

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SEA-LEVEL RISE AND MANGROVES Zuleika Pinion Responses of mangroves to sea-level rise Predictions and recent data Past analogues Accretion rate Management strategies 71 Community ecology and physiological ecology of mangroves: potential predictors of response to global change Mangrove forest zonation Mangrove response to freezing Hurricane damage Salinity, flooding, and sedimentation Conclusions References APPENDICES Appendix 1. Geographic distribution of coastal forest trees and shrubs on the Gulf of Mexico Appendix 2. Bibliography of tree species' responses to flooding and salinity Appendix 3. Field studies of responses of Gulf coast tree species to impoundments, drainage, and reductions in freshwater supply.

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“…and sweetgum (Liquidarnbar styraciflua L.). There is a total of 10.1 and 1812.6 million cubic feet of standing timber in Louisiana of sassafras and sweetgum, respectively (Vissage et al 1991). Sassafras wood is very durable and often is mixed with black ash (Fraxinus nigra Marsh.).…”

Section: Introductionmentioning

confidence: 99%

Potential of two processing methods to reduce sweetgum and sassafras lumber defects

Harding

Shupe

Choong

et al. 1997

Holz als Roh- und Werkstoff

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Sassafras and sweetgum logs were grade sawn and the lumber milled to 4/4 thickness and processed according to two methods. One half of the boards of both species were ripped prior to drying and the other half were dried prior to being ripped to the desired dimension. A statistical analysis revealed that the non-conventional method gave a significantly greater twist, crook, and crook per foot than the conventionally processed boards for both species. Sassafras boards produced with the non-conventional method had significantly higher bow and bow per foot than conventionally processed boards. It is emphasised that our non-conventional method did not follow the SawDry-Rip (SDR) methodology. Auswirkungen zweier Methoden zur Verringerung yon Trocknungssch~den bei Schnittholz aus Amberbaum und Sassafras (Fenchelbaum)Rundholz von Sassafras und Sweetgum wurden zu 4/4-Brettern aufgeschnitten und abgerichtet und dann nach zwei Methoden weiterbehandelt. Eine H~ilfte der Bretter von beiden Holzarten wurde vor dam Trocknen zugerichter, die andere Hiilfte zuerst getrocknet und dann auf die gewfinschten Dimensionen zugerichtet. Die statistische Auswertung ergab, daft die nicht-konventionelle Methode erh6hte Anteile an Verdrehung und Krfimmung verursachte als bei den konventionell behandelten Brettern zu beobachten war. Sassafrasholz wies nach der nicht-konventioneUen Behandlung einen deutlich h6heren Anteil an L~ingsverwerfungen auf als nach konventioneller Methode. Es soll noch darauf hingewiesen werden, dag diese nichtkonventionelle Methode nicht dem Schema der SDR-Methode folgt (Saw-Dry-Rip).

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Forest statistics for Louisiana Parishes - 1991

Cited by 3 publications

References 0 publications

Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana

Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana

Sea-level rise and coastal forests on the Gulf of Mexico

Potential of two processing methods to reduce sweetgum and sassafras lumber defects

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Forest statistics for Louisiana Parishes - 1991

Cited by 3 publications

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Developing a system of annual tree growth equations for the loblolly pine  shortleaf pine type in Louisiana

Developing a system of annual tree growth equations for the loblolly pine  shortleaf pine type in Louisiana

Sea-level rise and coastal forests on the Gulf of Mexico

Potential of two processing methods to reduce sweetgum and sassafras lumber defects

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Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana

Developing a system of annual tree growth equations for the loblolly pine shortleaf pine type in Louisiana