Dominant height growth and site index curves for Calabrian pine ( Pinus brutia Ten.) in central Cyprus

Abstract Sustainable forest management requires accurate prediction from a growth and yield system. Such a system relies heavily on some measure of site productivity, which is often the site index. A model was developed for predicting dominant height growth and site index of even-aged cedar (Cedrus libani A. Rich.) stands in Turkey. Stem-analysis data from 148 trees were used for model development and validation. Six dynamic height–age equations were derived using the generalized algebraic difference approach (GADA). Autocorrelation was modeled by expanding the error term as an autoregressive process. Based on numerical and graphical analysis, a GADA formulation derived from the Chapman–Richards model was selected. Based on relative error in dominant height prediction, 80 years was selected as the best reference age. The resulting equation provided the best compromise between biological and statistical aspects and, therefore, is recommended for height growth prediction and site classification of cedar stands in Turkey.

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Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaicaWilld.)

Annals of Forest Science ◽

10.1051/forest:2006076 ◽

2006 ◽

Vol 63 (8) ◽

pp. 929-940 ◽

Cited By ~ 25

Author(s):

Patricia Adame ◽

Isabel Cañellas ◽

Sonia Roig ◽

Miren Del Río

Keyword(s):

Site Index ◽

Height Growth ◽

Dominant Height ◽

Dominant Height Growth

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Modeling dominant height growth of maritime pine in Portugal using GADA methodology with parameters depending on soil and climate variables

Annals of Forest Science ◽

10.1007/s13595-011-0036-8 ◽

2011 ◽

Vol 68 (2) ◽

pp. 311-323 ◽

Cited By ~ 16

Author(s):

Luís Nunes ◽

Maria Patrício ◽

José Tomé ◽

Margarida Tomé

Keyword(s):

Height Growth ◽

Maritime Pine ◽

Climate Variables ◽

Dominant Height ◽

Dominant Height Growth

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Suitability of two methods of evaluating site quality for sugar maple in central Ontario

The Forestry Chronicle ◽

10.5558/tfc82733-5 ◽

2006 ◽

Vol 82 (5) ◽

pp. 733-744 ◽

Cited By ~ 2

Author(s):

Nicholas J Buda ◽

Jian R Wang

Keyword(s):

Sugar Maple ◽

Quality Evaluation ◽

Growth Models ◽

Site Index ◽

Height Growth ◽

Site Quality ◽

Dominant Height ◽

Index Site ◽

Species Mixture ◽

Stand Conditions

Stem analyses data collected in central Ontario stands were used to develop site index (height and age) and site form (height and diameter) models and curves for sugar maple. The suitability of both methods for evaluating sugar maple site productivity was examined. Two different equation forms were evaluated for both site index and site form models. A common modification of Richard's (1959) equation was most suitable for predicting dominant height at index age (site index) and reference diameter (site form). Potential effects of species mixture on sugar maple site index were examined. We found no significant effects on sugar maple height growth and site index in mixed stand conditions common in the region when compared to pure stands. The potential of site form as an alternative to site index was investigated through correlation analyses with site index and other site variables known to influence sugar maple height growth. Site form was not related to site index, nor any site variables related to sugar maple height growth. It is therefore inadequate for evaluating sugar maple site quality. We recommend height growth models and site index curves developed in this study be used to replace those from other regions currently used in central Ontario. Key words: site index, site form, sugar maple, site quality evaluation, mixedwood, uneven-aged

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Respective importance of ecological conditions and stand composition on Abies alba Mill. dominant height growth

Forest Ecology and Management ◽

10.1016/j.foreco.2007.09.031 ◽

2008 ◽

Vol 255 (3-4) ◽

pp. 619-629 ◽

Cited By ~ 24

Author(s):

Paulina E. Pinto ◽

Jean-Claude Gégout ◽

Jean-Christophe Hervé ◽

Jean-François Dhôte

Keyword(s):

Abies Alba ◽

Height Growth ◽

Ecological Conditions ◽

Dominant Height ◽

Dominant Height Growth

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Dominant height growth of European beech at the northeasternmost stands in Europe

Silva Fennica ◽

10.14214/sf.7818 ◽

2018 ◽

Vol 52 (1) ◽

Cited By ~ 1

Author(s):

Roberts Matisons ◽

Guntars Šņepsts ◽

Līga Puriņa ◽

Jānis Donis ◽

Āris Janosns

Keyword(s):

European Beech ◽

Height Growth ◽

Dominant Height ◽

Dominant Height Growth

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Modeling dominant height growth using permanent plot data for Pinus brutia stands in the Eastern Mediterranean region

Forest Systems ◽

10.5424/fs/2021301-17687 ◽

2021 ◽

Vol 30 (1) ◽

pp. eSC03

Author(s):

Tammam Suliman ◽

Uta Berger ◽

Marieke Van der Maaten-Theunissen ◽

Ernst Van der Maaten ◽

Wael Ali

Keyword(s):

Mediterranean Region ◽

Eastern Mediterranean ◽

Eastern Mediterranean Region ◽

Site Index ◽

Permanent Plots ◽

Stand Age ◽

Pinus Brutia ◽

Dominant Height ◽

Algebraic Difference ◽

Generalized Algebraic Difference Approach

Aim of the study: At current, forest management in the Eastern Mediterranean region is largely based on experience rather than on management plans. To support the development of such plans, this study develops and compares site index equations for pure even-aged Pinus brutia stands in Syria using base-age invariant techniques that realistically describe dominant height growth.Materials and methods: Data on top height and stand age were obtained in 2008 and 2016 from 80 permanent plots capturing the whole range of variation in site conditions, stand age and stand density. Both the Algebraic Difference Approach (ADA) and the Generalized Algebraic Difference Approach (GADA) were used to fit eight generalized algebraic difference equations in order to identify the one which describes the data best. For this, 61 permanent plots were used for model calibration and 19 plots for validation.Main results: According to both biological plausibility and model accuracy, the so-called Sloboda equation based on the GADA approach showed the best performance.Research highlights: The study provides a solid classification and comparison of Pinus brutia stands growing in the Eastern Mediterranean region and can thus be used to support sustainable forest management planning.Keywords: site index; Generalized Algebraic Difference Approach (GADA); Sloboda equation.

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