Výsledky vyhledávání - "Paul F. Doruska"

Bulk Density (Scaling Factor) of 14 Hardwood Species in Arkansas

Autor: David W. Patterson, Matthew Hurd, Jonathan I. Hartley, Paul F. Doruska

Publikováno v: Forest Products Journal. 61:225-228

With the monetary exchange for hardwood trees and logs changing from log-scale board feet to tons, it is important that bulk density values (also called scaling factors) be developed to aid in determining the value of standing trees and logs. This st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c8a064bd6b9eaedfbadc6b096e35be2
https://doi.org/10.13073/0015-7473-61.3.225

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An Individual-Tree, Merchantable Stem, Green Weight Equation for Loblolly Pine Pulpwood in Arkansas, Including Seasonal Effects

Autor: David W. Patterson, Paul F. Doruska

Publikováno v: Southern Journal of Applied Forestry. 30:61-65

An individual-tree, merchantable stem (3-in. top), outside-bark, green weight equation was developed for loblolly pine pulpwood trees in southeast Arkansas. Trees were sampled from the same eight stands over the four seasons of the year; therefore, s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d50e1b5da64f6ae68dcf0ed0f96950da
https://doi.org/10.1093/sjaf/30.2.61

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Use of Stand Density Index to Schedule Thinnings in Loblolly Pine Plantations: A Spreadsheet Approach

Autor: W. Robert Nolen, Paul F. Doruska

Publikováno v: Southern Journal of Applied Forestry. 23:21-29

Density management diagrams have been developed and presented for use in stand management by a number of researchers. Such diagrams can be somewhat crowded, limited in scope, and awkward to use. A spreadsheet application is described that enhances th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc08682fee5177a71eba6feca6128760
https://doi.org/10.1093/sjaf/23.1.21

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Modeling the diameter and locational distribution of branches within the crowns of loblolly pine trees in unthinned plantations

Autor: Paul F. Doruska, Harold E. Burkhart

Publikováno v: Canadian Journal of Forest Research. 24:2362-2376

Crown structure for 9- to 30-year-old loblolly pine (Pinustaeda L.) trees in unthinned plantations was quantified via analysis of branch diameters and location, both along and around the bole, using data from 68 trees. The trees ranged in size from 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bfaf8bc2c8e525e2f2c06a3c78b1d6fb
https://doi.org/10.1139/x94-305

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