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Friday, April 24, 2020 | History

2 edition of Remarks on height-diameter modeling found in the catalog.

Remarks on height-diameter modeling

Lei Yuancai

Remarks on height-diameter modeling

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  • 32 Currently reading

Published by U.S. Dept. of Agriculture, Forest Service, Southern Research Station in Asheville, NC .
Written in English

    Subjects:
  • Trees -- Growth -- Mathematical models.

  • Edition Notes

    StatementLei Yuancai and Bernard R. Parresol.
    SeriesResearch note SRS -- 10.
    ContributionsParresol, Bernard R., United States. Forest Service. Southern Research Station.
    The Physical Object
    Pagination5 p. :
    ID Numbers
    Open LibraryOL16041576M

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Remarks on height-diameter modeling by Lei Yuancai Download PDF EPUB FB2

Additional Physical Format: Lei, Yuancai. Remarks on height-diameter modeling (OCoLC) Online version: Yuancai, Lei. Remarks on height-diameter modeling. The relationship between height and diameter of a tree through time is a nonlinear, because growth of the height with respect to diameter increases rapidly.

Additional Physical Format: Lei, Yuancai. Remarks on height-diameter modeling 5 p. (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource. Remarks on Height-Diameter Modeling Forest Service Lei Yuancai and Bernard R.

Parresol' Southern Research Station Research Note SRS November Abstract Height-diameter model forms in earlier published papers are examined. The selection criteria used in height-diameter model forms are notCited by: Modeling height-diameter curves for prediction Article (PDF Available) in Canadian Journal of Forest Research April with 1, Reads How we measure 'reads'.

Lei Y, Parresol BR () Remarks on height-diameter modeling. USDA Forest Service, Asheville, Research Note SRS Google Scholar Lemin RC Jr, Burkhart HE () Predicting mortality after thinning in old-field loblolly pine : Harold E. Burkhart, Margarida Tomé. height-diameter relationships for different species and different forest regions.

As Krisnawati et al. () state, the approaches used for modeling height-diameter vary from linear to non-linear models. Curtis () compared thirteen height-diameter models using linear regression techniques. On the other hand, Huang et al. Remarks on height-diameter modeling / Lei Yuancai and Bernard R.

Parresol. Asheville, NC: U.S. Dept. of Agriculture, Forest Service, Southern Research Station, [] SDA4 A   Abstract. A generalized height–diameter (h-d) model was developed in order to predict the total height of individual trees in uneven-aged stands in the region of El Salto, Durango (Mexico).Seven generalized h-d equations were evaluated and the equation proposed by Sharma and Parton, which includes the diameter at breast height of the tree and the quadratic mean Cited by: the height-diameter data were gathered, whereas generalized height-diameter equations are a function of tree diameter and stand variables and can be applied at the regional level.

Height-diameter models are prin-cipally applied in height estimations in forest inv entories Generalized height-diameter and crown diameter prediction. Remarks on height-diameter modeling [electronic resource] / Lei Yuancai and Bernard R.

Parresol; White pine site index for the southern forest survey [microform] / Bernard R. Parresol and John S. Vissage; An investigation of crystalline intensity of the wood of poplar clones grown in Jiangsu Province, China.

Nomenclature A h. tear area alongside the carrier hull (m 2). A h cr. critical tear area (m 2). A ℒ. specific soot extinction area (m 2 /kg). A p sc. semicircular pool area spilled onto the sea alongside the carrier (m 2).

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The diameter at breast height (DBH) of all live trees (accuracy cm) was measured on all plots, as well as at 25 heights (H) (accuracy m) to build a local height–diameter model. From each stand, five model trees representing the entire diameter range were chosen proportionally to diameter classes and felled (90 trees in total).Cited by: 2.

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The total tree height is only measured on special sample plots, (i.e. every fourth plot) for the other plots, tree height is predicted from tree dbh by using a height-diameter function model. The objective is to obtain volume estimates for all the plots from tree diameter either measured or estimated tree height.

However, one could predict a similar range of values of the height–diameter exponent simply by considering the observed variability for trees of the height–age exponent in tablewhich range from – (leading to the range of values to ), if.

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