repositories = "Forest Systems"

Encontrado 1,051 documentos, página mostrada 1 de 106

Spatial distribution of sporocarp production of ECM fungi Amanita ponderosa Malençon & R. Heim during six consecutive years at a holm-oak forest (dehesa) in the Sierra de Aracena (Huelva) Distribución espacial de la fructificación del hongo ECM comestible Amanita ponderosa Malençon & R. Heim durante seis años consecutivos en un encinar adehesado de la Sierra de Aracena (Huelva)

Description: Number and location of Amanita ponderosa Malençon & R. Heim sporocarps was followed through six years in a 3 ha holm-oak forest located in the Sierra de Aracena y Picos de Aroche Natural Park (Huelva), at the Southwest of Spain. The data indicated that patches of sporocarp production showed a very s...
Language(s): Español

Characterization of the electroantennographic response by Cerambyx welensii Küster and Prinobius germari Germar (Coleoptera: Cerambycidae) to olfactory stimuly Caracterización de la respuesta electroantenográfica de Cerambyx welensii Küster y Prinobius germari Dejean (Coleoptera: Cerambycidae)

Description: Xylophagous cerambycids of Cerambyx and Prinobius genus can play an important role in «oak decline» in Spain. New trends in the integrated pest management are dealing with control strategies based on the relation between olfactory perception of semiochemicals and insect behaviour. Electroantennograp...
Language(s): Español

Modelling diameter distributions of Betula alba L. stands in northwest Spain with the two-parameter Weibull function Modelización de las distribuciones diamétricas en masas de Betula alba L. en el noroeste de España con la función Weibull biparamétrica

Description: The diameter distributions of 125 permanent plots installed in birch dominated (Betula alba L.) stands in Galicia were modelled with the two-parameter Weibull distribution. Four different fitting methods were used: that based on percentiles of the distribution, non linear regression, maximum likelih...
Language(s): Inglés

Regeneration dynamics of Pinus nigra subsp. salzmannii in its shouthern distribution area: stages, processes and implied factors Dinámica de regeneración de Pinus nigra subsp. salzmannii al sur de su área de distribución: etapas, procesos y factores implicados

Description: This paper analyses whether the natural regeneration of Pinus nigra subsp. salzmannii is seed or microsite limited, studying the spatial and temporal regeneration dynamics of a pine forest located in Sierra of Cazorla (Southeast Spain). For three years, pineseed density on the ground, and emergence,...
Language(s): Español

System of equations for yield and growth of Pinus taeda including prune variables Sistema de ecuaciones de producción y crecimiento de Pinus taeda L. con variables asociadas a las podas

Description: It were adjusted stand yield functions and dinamic growth models, that compose a compatible system of equations, that include regressors variables associated with prune intensity, beside age, stand density and site index. The data set come from a trial in a Pinus taeda L. plantation, with ages betwe...
Language(s): Español

Effects of basal area on survival and growth of longleaf pine when practicing selection silviculture

Description: Aim of study: Uneven-aged (UEA) management systems can achieve multiple-use objectives, however, use of UEA techniques to manage longleaf pine (Pinus palustris Mill.) forests are still open to question, because of the species’ intolerance of competition. It was our aim to examine the influence of di...
Language(s): Inglés

The growth of Abies pinsapo and the climate of Grazalema: dendroecological approach El crecimiento de Abies pinsapo y el clima de Grazalema: aportaciones dendroecológicas

Author(s): Génova Fuster, M.
Description: Abies pinsapo is an interesting species wich lives in special ecological conditions, in a particular very rainy subtype of Mediterranean climate, which nevertheless is arid in summer. Its radial growth has been studied using dendrochronological methods in two Iberian population, and both the general...
Language(s): Español

Conjoint analysis and natural areas: an application to the Desert de les Palmes Park Análisis conjunto y espacios naturales: una aplicación al Paraje Natural del Desert de les Palmes

Description: We use stated preference methods to analyze consumer preferences on the attributes of protected natural areas and to estimate the willingness to pay for reducing the risk of fires in the site. For the first goal, conjoint analysis is used. Three attributes are considered: biodiversity, dimension of ...
Language(s): Español

Impact of the efficiency in the consumption of biomass in the Chilean cellulous sector Impacto de la eficiencia en el consumo de biomasa en el sector celulosa chileno

Description: On the basis of official statistics, and data obtained directly of the companies of the sector cellulose Kraft, there are shown the characteristics of the use of biomass like energetic waste matter used by the sector. There are identified volumes, sources, costs and there are obtained Specific Consu...
Language(s): Español

Short communication: AHP for indicators of sustainable forestry under Mediterranean conditions

Description: Aim of study: To verify and prioritise a set of sustainable forestry indicators using the Analytic Hierarchy Process (AHP).Area of study: Participants were Spanish; indicators were meant to be applied in forest management units (FMUs) under Mediterranean conditions.Material and methods: An AHP quest...
Language(s): Inglés

Encontrado 1,051 documentos, página mostrada 1 de 106

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