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Full-Text Articles in Life Sciences
Initial Investigation Of Height-Diameter Relationships Of Dominant Trees In The Mixed Hardwood Bottomland Forests Of East Texas, Brian P. Oswald, A. Gordon Holley, Leslie A. Dale, Gary D. Kronrad
Initial Investigation Of Height-Diameter Relationships Of Dominant Trees In The Mixed Hardwood Bottomland Forests Of East Texas, Brian P. Oswald, A. Gordon Holley, Leslie A. Dale, Gary D. Kronrad
Faculty Publications
Three to five dominant trees from each of 445 ten-factor variable radius inventory points were utilized to evaluate the height- diameter relationships of 13 species or genera found on bottomland hardwood sites throughout east Texas. Regression analysis was performed using the linear model such that height = (30 + (31 x (d.b.h.). The species were placed into six groups: (1) pines (Pinus taeda and P. enchinata) ; (2) water oak/willow oak/white oak/swamp chestnut oak (Quercus nigra)/(Q. phe//os)/(Q. alba)/(Q. michauxi1) ; (3) blackgum/laurel oak/overcup oak (Nyssa sylvatica)/(Q. laurifolia)/(Q. lyrata); (4) ash/maple (Fraxinus spp.)/(Acerspp.); (5) hickories (Carya spp.), and (6) elms (Ulmus …
The Economics Of Hardwood Management In The United States: 1950-1995, An Annotated Bibliography, Steven J. Goodson, Steven H. Bullard
The Economics Of Hardwood Management In The United States: 1950-1995, An Annotated Bibliography, Steven J. Goodson, Steven H. Bullard
Faculty Publications
This bibliography includes journal articles, published reports, conference proceedings articles, and academic theses and dissertations dated between 1950 and 1995 that concern economic aspects of managing hardwood tree species for timber production in the United States. The articles and reports were identified through keyword searches of computer databases available through the Mississippi State University computer system. Keywords used included individual species names as well as economic terms such as costs, returns, investment, and profit. The specific databases included the 1) USDA Agricultural Library - AGRICOLA CD-ROMs, 2) Colorado Alliance of Research Libraries System, 3) EBSCO Dissertation Abstracts, and 4) the …
Convert: A Program To Evaluate Hardwood Sawmill Conversion Efficiency, Steven H. Bullard, Philip Steele, Craig T. Boden, Penny Scott
Convert: A Program To Evaluate Hardwood Sawmill Conversion Efficiency, Steven H. Bullard, Philip Steele, Craig T. Boden, Penny Scott
Faculty Publications
CONVERT is a computer program that allows users to evaluate the conversion efficiency of hardwood sawmills. Users can consider six factors that influence conversion efficiency. Four of the factors reflect characteristics of hardwood sawmill machines: headrig kerf, headrig type, resaw kerf, and rough green size. The other factors reflect characteristics of the mill's raw material inputs: average log length and average log diameter.
Direct Comparison Of Processing Technology In Hardwood And Softwood Sawmills, Philip Steele, Tony El-Radi, Steven H. Bullard
Direct Comparison Of Processing Technology In Hardwood And Softwood Sawmills, Philip Steele, Tony El-Radi, Steven H. Bullard
Faculty Publications
This study compares the sawing accuracy of 273 machines in hardwood sawmills to 291 machines in softwood sawmills. Characteristics compared were kerf width, sawing variation (within-board, between-board, and total), machining wood loss per sawline, and oversizing/undersizing practices. While results varied between machine types by region, hardwood sawmills generally performed as well as, or sometimes better than, softwood sawmills for many of the machine characteristics studied.
Estimating Hardwood Sawmill Conversion Efficiency Based On Sawing Machine And Log Characteristics, Michael W. Wade, Steven H. Bullard, Philip Steele, Philip A. Araman
Estimating Hardwood Sawmill Conversion Efficiency Based On Sawing Machine And Log Characteristics, Michael W. Wade, Steven H. Bullard, Philip Steele, Philip A. Araman
Faculty Publications
Increased problems of hardwood timber availability have caused many sawmiller, industry analysts, and planners to recognize the importance of sawmill conversion efficiency. Conversion efficiency not only affects sawmill profits, but is also important on a much broader level. Timber supply issues have caused resource planners and policy makers to consider the effects of conversion efficiency on the utilization and depletion of the timber resource. Improvements in sawmill conversion efficiency would favorably impact sawmill profits, and would be equivalent in effect to extending existing supplies of standing timber. An equation was developed to estimate lumber recovery factor for hardwood sawmills based …
Trends Of Hardwood Lumber Use In Making Household Furniture., Steven H. Bullard
Trends Of Hardwood Lumber Use In Making Household Furniture., Steven H. Bullard
Faculty Publications
Hardwood lumber has long been a "mainstay" raw material for U.S. furniture makers. Its importance relative to other raw materials, however, has changed significantly during the past 40 to 50 years.
Mixed-Hardwood Thinning Optimization, Steven H. Bullard
Mixed-Hardwood Thinning Optimization, Steven H. Bullard
Faculty Publications
Upland hardwood forest types are .by far the most widespread in the United States. Stands of the oak-hickory forest type alone include 109 million acres, 23 percent of the Nation's commercial timberland (U.S. Forest Service 1982) . Many even-aged upland hardwood stands developed on nonindustrial private lands through hardwood invasion after pine stands were harvested. In 1973, half of the hardwood timber in the South was determined to be on upland sites which formerly supported pine stands (Murphy and Knight 1974). Many nonindustrial private landowners passively permit the biologically better adapted hardwoods to increase after the harvest of pines. These …