Modeling dominant height growth including site attributes in the GADA approach for Quercus faginea Lam. in Spain

Senespleda, Eduardo López; Bravo‐Oviedo, Andrés; Ponce, Rafael Alonso; González, Gregorio Montero

doi:10.5424/fs/2014233-04937

Cited by 6 publications

(4 citation statements)

References 21 publications

(15 reference statements)

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“…The dynamic model obtained by relating two parameters to site (equation 3) was also used to model dominant height growth of Pinus taeda in Geor-gia (USA) with the aim of testing different fitting methods (Cieszewski, Harrison and Martin, 2000). This model also produced the best results for Quercus faginea in Spain (Lopez-Senespleda et al, 2014).…”

Section: Base Modelsmentioning

confidence: 85%

“…Because all of the above mentioned works for Spain or other countries were carried out prior to the year 2000, none of them used the Generalized Algebraic Difference Approach (GADA) proposed by Cieszewki and Bailey (2000), widely used al later times for other species to elaborate site index curves (e.g. Tomé, Ribeiro and Soares, 2001;Sharma, Amateis and Burkhart, 2002;Fontes et al, 2003;Palahí et al, 2003;Álvarez-González, Ruiz-González, Rodríguez-Soalleiro and Barrio-Anta, 2005;Barrio-Anta & Diéguez-Aranda, 2005;Diéguez-Aranda, Álvarez-González, Barrio-Anta and Rojo-Alboreca, 2005a;Diéguez-Aranda, Burkhart and Rodríguez-Soalleiro, 2005b;Adame, Cañellas, Roig and Del Rio, 2006;Tahar et al, 2012;Lopez-Senespleda, Bravo-Oviedo, Alonso and Montero, 2014).…”

Section: Pinus Halepensis Is Naturally Distributed In Spainmentioning

confidence: 99%

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Site index curves for natural Aleppo pine forests in the central Ebro valley (Spain)

Alboreca

Cabanillas-Saldaña

Barrio-Anta

et al. 2017

MYB

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Site index curves were created for natural Aleppo pine (Pinus halepensis Mill.) stands in the Ebro Valley (northeastern Spain). Data were obtained from 54 felled dominant trees. The Generalized Algebraic Difference Approach (GADA) was used to fit 11 equations with a longitudinal data structure that included all possible growth intervals. Three statistical criteria were used for model comparison: root mean square error (RMSE), adjusted coefficient of determination (R2adj) and Akaike’s information criterion (AIC). Graphical evaluation of the data (plots of observed against predicted values and of residuals against predicted values) was also conducted. In addition, the root mean square error (RMSE) was plotted against age. Finally, fitted site index curves for different site qualities were superimposed on the profile plots of the stems analysed. The best reference age (60 years) was calculated from the relative error in the dominant height prediction. The Hossfeld IV model proved the most suitable for representing site index in the study area. Furthermore, only three site index curves (6, 10 and 14 m at 60 years) were suitable for classifying the entire study area because of the low productivity of the stands. These were compared with other site index curves developed for Spain and other countries, for the natural range of distribution of the species. Specific site index curves must be created for the study area, because the existing qualities and growth patterns are not well-represented in other models.

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Section: Base Modelsmentioning

confidence: 85%

Section: Pinus Halepensis Is Naturally Distributed In Spainmentioning

confidence: 99%

Site index curves for natural Aleppo pine forests in the central Ebro valley (Spain)

Alboreca

Cabanillas-Saldaña

Barrio-Anta

et al. 2017

MYB

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“…indicated for site classifi cation, but the polymorphic equation derived by the GADA approach from LundqvistKorf function (LG) resulted in a more adequate model for prediction of dominant height. Although advantages of dynamic site equations have been pointed out in several studies (AMARO et al, 1998;CALAMA et al, 2004;LOPEZ-SENESPLEDA et al, 2014) we decided to choose the more parsimonious model of Lundqvist-Korf using the guide curve method for site classifi cation. The site quality curves obtained in this study clearly show that Brazil is an excellent territory for African mahogany growth.…”

Section: Figurementioning

confidence: 99%

Site Quality Curves for African Mahogany Plantations in Brazil

Ribeiro

Filho

Tomé

et al. 2016

CERNE

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Site quality estimation is an important tool in forest management since it is useful for modeling growth and yield for even-aged stands. Data from African mahogany (Khaya ivorensis A. Chev.) Brazilian plantations were used to develop a model to predict dominant height growth, comparing dynamic base-age invariant site index models with the guide curve method (static models). For the evaluation of the candidate models qualitative and quantitative criteria were used. We also verified the stability of the candidate models, preferring a model providing fewer site class changes when predicting site index from different ages. The Lundqvist-Korf function fitted with the guide curve method proved to be effective and accurate for site classification and dominant height predictions of African mahogany stands. The range of observed site index, at a reference age of 15, was between 17 and 33 meters. CURVAS DE CLASSIFICAÇÃO DE SÍTIO PARA PLANTIOS DE MOGNO AFRICANO NO BRASIL RESUMO:A estimativa da qualidade de sítio é uma importante ferramenta para o manejo florestal, uma vez que auxilia na modelagem do crescimento e produção de florestas equiâneas. Dados de plantios brasileiros de mogno africano (Khaya ivorensis A. Chev.) foram utilizados para avaliar modelos de crescimento em altura dominante comparando modelos dinâmicos invariantes com a idade padrão e modelos estáticos (método da curva guia). Para a avaliação dos modelos foram utilizados critérios quantitativos e qualitativos. Também foi verificada a estabilidade dos modelos candidatos, sendo preferido o modelo que resultou em menos mudanças de classes na predição da mesma parcela em diferentes idades. O modelo de Lundqvist-Korf com o método da curva guia se mostrou eficiente, sendo recomendado para a classificação de sítios e para a predição de altura dominante em povoamentos de mogno africano. A amplitude dos índices de sítio, na idade de referência de 15 anos, foi de 17 a 33 metros.

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“…In recent decades, different height growth dynamic models and site index curves have been developed for natural stands of the main native Spanish species, including conifers [22][23][24] and broadleaves [25][26][27][28]. In addition, site index curves have been developed for the exotic species used in high-timber-producing plantations, such as Eucalyptus sp.…”

mentioning

confidence: 99%

Dynamic Height Growth Equations and Site Index-Based Biomass Models for Young Native Species Afforestations in Spain

Calama,

Madrigal,

del Río

et al. 2024

Forests

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The expansion of forested areas through afforestation and reforestation is widely recognized as a highly effective natural solution for mitigating climate change. Accurately assessing the potential carbon uptake capacity of newly afforested areas requires modelling tools to estimate biomass stocks, including site index curves and biomass models. Given the unique conditions in terms of tree size, uniform spacing, and tree allometries observed in young afforestations compared to natural stands, specific tools are necessary. In Spain, over 800,000 ha has been afforested with native forest species since 1992, but specific modelling tools for these plantations are lacking. Using data from 370 stem analyses collected across an extensive network of plots in young afforestations, we developed dynamic height growth and site index models for the main native species (five pines and five oaks) commonly used in afforestation in Spain. We compared various nonlinear models, such as ADA (algebraic difference approach) and GADA (generalized algebraic difference approach) expansions. The developed site index models were then used to predict the total biomass stored in the afforestation. Our results underscore the necessity for specific site index models tailored to afforestations, as well as the potential of the established site index in predicting biomass and carbon fixation capacity in these young forests.

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Modeling dominant height growth including site attributes in the GADA approach for Quercus faginea Lam. in Spain

Cited by 6 publications

References 21 publications

Site index curves for natural Aleppo pine forests in the central Ebro valley (Spain)

Site index curves for natural Aleppo pine forests in the central Ebro valley (Spain)

Site Quality Curves for African Mahogany Plantations in Brazil

Dynamic Height Growth Equations and Site Index-Based Biomass Models for Young Native Species Afforestations in Spain

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