Journal ArticleDOI
Distance independent tree diameter growth model for cork oak stands
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In this paper, a diameter increment model for cork oak was developed based on measurements taken twice at 72 permanent plots in cork oaks in southern Spain and compared with empirical and semi-empirical models.About:
This article is published in Forest Ecology and Management.The article was published on 2006-04-15. It has received 46 citations till now. The article focuses on the topics: Quercus suber & Site index.read more
Citations
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Journal ArticleDOI
Evaluation of methods to predict Weibull parameters for characterizing diameter distributions
Krishna P. Poudel,Quang V. Cao +1 more
TL;DR: In this article, the authors developed and evaluated different methods of predicting parameters of Weibull distribution to characterize diameter distribution using data from the Southwide Seed Source Study, and the results showed that the modified CDF approach consistently provided better results than the SUR approach and was superior to the CDFR approach in all evaluation statistics but the Anderson-Darling statistic.
Journal ArticleDOI
Individual-tree diameter growth model for rebollo oak (Quercus pyrenaica Willd.) coppices
TL;DR: In this paper, a distance-independent mixed model was developed for predicting the diameter growth of individual trees in Mediterranean oak (Quercus pyrenaica Willd.) coppices located in northwest Spain.
Journal ArticleDOI
Modelling non-wood forest products in Europe: a review.
Rafael Calama Sainz,Margarida Tomé,Mariola Sánchez-González,Jari Miina,K. Spanos,Marc Palahí +5 more
TL;DR: In this paper, the main factors and challenges limiting the development of classical empirical models for non-wood forest products (NWFP) are discussed, and the existing models for the main NWFP in Europe: cork, pine nuts, berries, mushrooms and resins.
Journal ArticleDOI
Predicting site index from climate and soil variables for cork oak (Quercus suber L.) stands in Portugal
Joana Amaral Paulo,João H.N. Palma,Alberto Azevedo Gomes,Sónia Pacheco Faias,José Tomé,Margarida Tomé +5 more
TL;DR: In this paper, the authors used partial least squares regression as a function of soil and climatic variables to estimate the site productivity of cork oak plantations in Portugal, using a digital cartography of the whole country.
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Estimation of Forest Structural Diversity Using the Spectral and Textural Information Derived from SPOT-5 Satellite Images
TL;DR: The results indicated that basal area, stand volume, the Shannon index, Simpson index, Pielou index, standard deviation of DBHs, diameter differentiation index and species intermingling index could be reliably predicted using the spectral or textural measures extracted from SPOT-5 satellite images.
References
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Book
Classical and modern regression with applications
TL;DR: In this article, the authors focus on concepts with a blend between illustrations using real data sets and mathematical and conceptual development and emphasize applications with examples that illustrate nearly all the techniques discussed, including simultaneous influence, maximum likelihood estimation of parameters, and the plotting of residuals.
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Regression Diagnostics: Identifying Influential Data and Sources of Collinearity
Journal ArticleDOI
Asymmetric competition in plant populations
TL;DR: The hypothesis that competition between individual plants is asymmetric or onesided: larger individuals obtain a disproportionate share of the resources (for their relative size) and suppress the growth of smaller individuals is investigated.
Book
Modelling Forest Growth and Yield: Applications to Mixed Tropical Forests
TL;DR: There is a large body of work on the use of mixed plantations and natural forests in forest management as mentioned in this paper, and many approaches have been proposed to build a model for mixed forests.
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A basal area increment model for individual trees growing in even- and uneven-aged forest stands in Austria
Robert A. Monserud,Hubert Sterba +1 more
TL;DR: In this paper, a basal area increment model is developed for all the main forest species in Austria: spruce (Picea abies), fir (Abies alba), larch (Larix decidua), Scots pine (Pinus sylvestris), black pine (Pus nigra), stone pine (pinus cembra), beech (Fagus silvatica), oak (Quercus robur, Quercus petraea and Quercius cerris), and for all other broadleaf species combined.