Browsing UXAFORES-Artigos by Issue Date
Now showing items 1-20 of 53
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Site Quality Curves for Birch Stands in North-Western Spain
(Finnish Society of Forest Science, 2006)A model for predicting the height growth of even-aged, birch (Betula pubescens Ehrh.) dominated stands in Galicia (north-western Spain) was developed. Data from stem analysis of 214 trees were used for model construction. ... -
Growth and yield models in Spain: Historical overview, Contemporary Examples and perspectives
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2011)In this paper we present a review of forest models developed in Spain in recent years for both timber and non timber production and forest dynamics (regeneration, mortality,..). Models developed are whole stand, size ... -
Modelo de distribución de la carga de combustibles finos en el dosel de copas de rodales regulares de "Pinus Pinaster": efecto de claras combinadas con podas
(Sociedad Española de Ciencias Forestales, 2012)Los modelos de predicción del riesgo de inicio y propagación de fuegos de copas requieren conocer, entre otros parámetros, la altura de la base de la cubierta de copas (CBH) y la densidad aparente del combustible en la ... -
Carbon balance for different management practices for fast growing tree species planted on former pastureland in southern Europe: a case study using the CO2Fix model
(Springer, 2012)Although it is known that forestry mitigates carbon emissions to some degree, there is still a need to investigate the extent to which changes in forest management regimes affect the carbon cycle. In a climate-change ... -
A comparison of estimation methods for fitting Weibull, Johnson’s SB and beta functions to Pinus pinaster, Pinus radiata and Pinus sylvestris stands in northwest Spain
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2012)The purpose of this study was to compare the accuracy of the Weibull, Johnson’s SB and beta distributions, fitted with some of the most usual methods and with different fixed values for the location parameters, for describing ... -
Resource communication. Individual tree growth model for radiata pine plantations in northwestern Spain
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2012)Individual-tree basal area and height increment models were developed with data from 130 permanent plots of Pinus radiata D. Don located in Galicia (northwestern Spain). Mixed-models techniques were used for model fitting. ... -
Height-diameter relationships for Scots pine plantations in Bulgaria: optimal combination of model type and application
(‘Marin Drăcea’ National Research-Development Institute in Forestry, 2012)The height-diameter relationship is an important and extensively investigated forest model, but generalized and mixed-effects models of wider applicability are currently lacking in the forest modeling literature for Scots ... -
Modelling stand biomass fractions in Galician Eucalyptus globulus plantations by use of different LiDAR pulse densities
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2013)Aims of study: To evaluate the potential use of canopy height and intensity distributions, determined by airborne LiDAR, for the estimation of crown, stem and aboveground biomass fractions To assess the effects of a ... -
Above-ground biomass equations for Pinus radiata D. Don in Asturias
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2013)Aim of the study: The aim of this study was to develop a model for above-ground biomass estimation for Pinus radiata D. Don in Asturias. Area of study: Asturias (NE of Spain). Material and methods: Different models ... -
Arranque de un digestor anaerobio tubular vertical para la depuración de aguas residuales con obtención de biogás
(Infoedita, 2013-06)El estudio consistió en la puesta en marcha de un nuevo reactor a escala de laboratorio para depurar en anaerobiosis un sustrato líquido de elevada DQO, obteniéndose efluente depurado y biogás. La eficacia depuradora en ... -
Mixed and monospecific stands of Eucalyptus and black-wattle. II - Fine root boimass density
(2015)The aim of this study was to evaluate fine root biomass density (FRBD) in mixed and monospecific stands of Eucalyptus grandis x E. urophylla and Acacia mearnsii (black wattle) in Bagé-RS (Southern Brazil). An experimental ... -
Modeling extreme values for height distributions in Pinus pinaster, Pinus radiata and Eucalyptus globulus stands in northwestern Spain
(Italian Society of Silviculture and Forest Ecology (SISEF), 2015)Methods of estimating extreme height values can be used in forest modeling to improve fits to the marginal distribution of heights in the following bivariate diameter-height models: the SBB Johnson’s distribution, the ... -
EucaTool®, a cloud computing application for estimating the growth and production of Eucalyptus globulus Labill
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2015)Aim of study: To present the software utilities and explain how to use EucaTool®, a free cloud computing application developed to estimate the growth and production of seedling and clonal blue gum (Eucalyptus globulus ... -
Fitting and calibrating a multilevel mixed-effects stem taper model for maritime pine in NW Spain
(PLOS, 2015)Stem taper data are usually hierarchical (several measurements per tree, and several trees per plot), making application of a multilevel mixed-effects modelling approach essential. However, correlation between trees in the ... -
Influence of blue stain on density and dimensional stability of Pinus radiata timber from northern Galicia (Spain)
(De Gruyter, 2015-01-31)The presence of blue-stain fungi considerably decreases the value of Pinus radiata timber, which is commercially important in Galicia (NW Spain). For this study, seven young pine trees growing in four different plantations ... -
Selección del tratamiento óptimo de aguas residuales para poblaciones del medio rural de Galicia
(Infoedita Comunicación profesional S.L., 2015-10)La depuración de aguas residuales en pequeños núcleos debe orientarse hacia alternativas diferentes a las que se suelen aplicar en poblaciones de mayor tamaño. En este sentido, la tecnología actual ofrece un amplio abanico ... -
La ordenación de las poblaciones de fauna cinegética para la práctica de la caza. El caso del TECOR Oleiros-Rioaveso (Villalba, Lugo)
(Biblioteca del Seminario Diocesano de Lugo, 2015-11)En este artículo se argumenta sobre la necesidad de los proyectos de ordenación de los recursos cinegéticos y se pone como ejemplo el caso del TECOR Oleiros-Rioaveso (Villalba, Lugo), en el que se hace una descripción ... -
Crecimiento y distribución de biomasa aérea en clones de castaño híbrido a edad temprana
(Sociedad Española de Ciencias Forestales, 2016)Se presentan los resultados de la medición en 228 ejemplares de castaños híbridos de 20 clones distintos en vivero, de edades comprendidas entre 4 y 7 años. Se realizaron muestreos destructivos para caracterizar las ... -
Cartografía de variables dasométricas en bosques Mediterráneos mediante análisis de los umbrales de altura e inventario a nivel de masa con datos LiDAR de baja resolución
(Universitat Politécnica de Valéncia, 2016)Este estudio presenta avances en la metodología de inventario forestal a nivel de masa (area-based approach, ABA) con datos LiDAR aerotransportado de baja densidad y destaca la utilidad de los datos LiDAR disponibles para ... -
Comparing Johnson’s SBB, Weibull and Logit-Logistic bivariate distributions for modeling tree diameters and heights using copulas
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2016)Aim of study: In this study we compare the accuracy of three bivariate distributions: Johnson’s SBB, Weibull-2P and LL-2P functions for characterizing the joint distribution of tree diameters and heights. Area of study: ...