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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 136

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 135

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 133

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 132

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 127

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 125

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 124

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 122

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Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 119

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 118

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 118, Issue 1-6, December 1999

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List of reviewers in the year 1999

A simple routine method for assessing the SO4 2− remobilization potential of forest soils for sulfate-sulfur from atmospheric deposition

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Estimating tree heights with Johnson’s SBB-distribution

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Buchbesprechungen

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 117

Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch : Volume 116

Estimating tree heights with Johnson’s SBB-distribution

Content Provider	Springer Nature Link
Author	Schmidt, Matthias Gadow, Klaus
Copyright Year	1999
Abstract	Die Verwendung der SBB-Funktion (Johnson 1949) als Hilfsmittel zur Schätzung der Bestandeshöhenstreuung wird erläutert. Es wird ein Verfahren vorgestellt, mit dem Inventurinformationen auch bei ungleichen Anzahlen an BHD-Höhen-Wertepaaren vollständig genutzt werden können. Da aus Bestandesinventuren häufig relativ wenige Höhen zur Parametrisierung zur Verfügung stehen, werden Simulationen des Verfahrens für unterschiedlich große Stichprobenumfänge und Auswahlvarianten an BHD-Höhen-Paaren für einen Beispielbestand berechnet. Die Ergebnisse werden auf der Basis der Abweichungen der generierten von den gemessenen Höhen und über mittlere relative Abweichungen der bedingten Häufigkeitsverteilungen der einzelnen Simulationen von der Parametrisierung auf der Basis aller Wertepaare des Beispielbestandes beurteilt. Weiterhin werden die Ergebnisse von Höhenschätzungen für den Gesamtbestand und das Teilkollektiv der Oberschichtbäume verglichen. Während die Höhenschätzungen für die Oberschicht geringe Fehler- und Biaswerte aufweisen, treten für den zweischichtigen Gesamtbestand in Teilbereichen systematische Über- und Unterschätzungen auf.This paper describes the use of the bivariate SBB distribution for estimating the variation of tree heights based on data from permanent sample plots of a beech forest. Since usually only few heights and many diameters are available from forest inventories, simulation results are presented for different sample sizes and combinations of dbh-height-data. The results are evaluated using the criteria mean relative discrepancy between the conditional height distributions of the model using all dbh-height-data and single simulations using only few dbh-height pairs. Additionally the root mean square error for height estimates (RMSE) is calculated. The height estimates for the total stand and the subsample of the overstory trees are compared. The height estimates for the overstory trees have very low RMSE and bias. Bias and RMSE are considerably higher in certain diameter classes for the total stand including both subpopulations.
Starting Page	355
Ending Page	367
Page Count	13
File Format	PDF
ISSN	00158003
Journal	Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch
Volume Number	118
Issue Number	1-6
e-ISSN	14390337
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	estimation of tree height conditional height distribution bivariate diameter-height-distribution SBB-distribution simulation of sampling Forestry Plant Sciences Plant Ecology
Content Type	Text
Resource Type	Article
Subject	Plant Science Forestry

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Evaluation of direct and indirect methods for modelling the joint distribution of tree diameter and height data with the bivariate Johnson's SBB function to forest stands.

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Comparing Johnson's SBB, Weibull and Logit-Logistic bivariate distributions for modeling tree diameters and heights using copulas

The bivariate Power-Normal and the bivariate Johnson’s System bounded distribution in forestry, including height curves. Supplementary material.

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Similar Documents

Height–diameter models with stochastic differential equations and mixed-effects parameters

A flexible modeling of irregular diameter structure for the volume estimation of forest stands

The Bivariate Gompertz Diffusion Model for Tree Diameter and Height Distribution

Modelling the diameter distribution of eucalyptus plantations with Johnson’s S $_{B}$ probability density function: parameters recovery from a compatible system of equations to predict stand variables

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