Browsing Articles publicats (Enginyeria Agroforestal) by Title
Now showing items 242-261 of 334
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Propuesta para la recogida de datos sobre visitantes de áreas recreativas
(Colegios y Asociaciones de Ingenieros de Montes e Ingenieros Técnicos Forestales, 2000)Desde los años 70 se han creado en nuestros montes áreas recreativas basadas en un modelo de concentración de visitantes y de infraestructuras en cuarteles de recreo. El destino de estas áreas ha sido muy desigual, planteando ... -
Prospects for improving gravity-fed surface irrigation systems in Mediterranean European contexts
(MDPI, 2017)Traditionally, most irrigation practices in Southern Europe have been based on gravity-fed surface irrigation systems. Currently, these systems remain a relevant typology in the European Union (EU) member states of the ... -
Protocolo para la zonificación intraparcelaria de la viña para vendimia selectiva a partir de imágenes multiespectratrales
(Asociación Española de Teledetección, 2010)En este trabajo se presenta un protocolo para la zonificación intraparcelaria de la viña con la finalidad de vendimia selectiva. Se basa en la adquisición de una imagen multiespectral detallada en el momento del envero, a ... -
Quantifying economic losses from wildfires in black pine afforestations of northern Spain
(Elsevier, 2016-09-20)We implemented a fire risk assessment framework that combines spatially-explicit burn probabilities, post-fire mortality models and public auction timber prices, to estimate expected economic losses from wildfires in 155 ... -
Quantifying the effect of nitrogen-induced physiological and structural changes on poplar growth using a carbon-balance model
(Oxford University Press, 2011-04-14)We evaluate the importance of changes in photosynthetic capacity, respiration rates, root shoot ratio, pipe model parameters and specific leaf area in the early-growth response of hybrid poplar to nitrogen availability. ... -
¿Qué nos dicen los sensores sobre los cultivos?
(New Ag International SARL, 2017-12-01)Los sensores de cultivo proporcionan a los agricultores mediciones rápidas, objetivas, cuantitativas y precisas (repetibles), difíciles o imposibles de obtener por otros medios. Estos datos, generalmente adquiridos durante ... -
Real-time approaches for characterization of fully and partially scanned canopies in groves
(Elsevier, 2015)Efficient information management in orchard characterization leads to more efficient agricultural processes. In this brief, a set of computational geometry methods are presented and evaluated for orchard characterization; ... -
Real-time tree-foliage surface estimation using a ground laser scanner
(Institute of Electrical and Electronics Engineers (IEEE), 2007)The optimization of most pesticide and fertilizer applications is based on overall grove conditions. In this work we measurements. Recently, Wei [9, 10] used a terrestrial propose a measurement system based on a ground ... -
Recolección mecanizada de la aceituna con vibradores
(Eumedia, 1997)El necesario incremento de la productividad del olivo pasa por una reducción de sus costes de producción, entre los cuales recolección representa una fración bien destacada. En este sentido, la mecanización de la recolección ... -
Recruitment patterns of four tree species along elevation gradients in Mediterranean mountains: not only climate matters
(Elsevier, 2015-11-02)Evidence of tree regeneration failure of some species in the Iberian Peninsula forests warns us about the impact that the global change may exert on the preservation of Mediterranean forests, such as we know them. Predictions ... -
El regadiu a Lleida. Resultats de diverses avaluacions a la zona regable dels canals d'Urgell (Lleida)
(Institució Catalana d’Estudis Agraris, 2014)En este artículo hacemos una descripción de las superficies regadas en la provincia de Lleida y la demanda de agua que representan respecto a lasaportaciones en régimen natural. Se presentan los resultados de las evaluaciones ... -
Relating landscape structure, environment and management to biodiversity indicators estimated from forest inventory data in Catalonia (NE Spain)
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2009)There is an increasing need to develop efficient methods for characterising and monitoring forest biodiversity. A landscape scale approach and assessment can provide complementary and valuable information in this respect, ... -
Relationship between tree row LIDAR-volume and leaf area density for fruit orchards and vineyards obtained with a LIDAR 3D Dynamic Measurement System
(Elsevier, 2013)In this work, a LIDAR 3D Dynamic Measurement System, based on a Two-Dimensional Terrestrial Laser-LIDAR Scanner (2D TLS), was used for the geometric characterisation of tree-row crops (apple trees, pear trees and vineyards). ... -
Relative size to resprouters determines post-fire recruitment of non-serotinous pines
(Elsevier, 2018)The persistence of non-serotinous pines in Mediterranean forests can be threatened by climate-mediated changes in fire regimes that may favor the dominance of resprouters or other fire-adapted species. Recovery of ... -
Rendimientos de trabajo y costes de maquinaria para reforestación
(Eumedia, 2000)La repoblación forestal es una actividad que desgraciadamente se ha tenido que realizar muy a menudo en algunas zonas de este país. En este artículo se analiza el coste que tiene esta operacion considerando diversas hipótesis ... -
Rentabilidad económica del regadío de los canales de Urgell (Lleida, España)
(Asociación Interprofesional para el Desarrollo Agrario, 2009)En este trabajo se presentan resultados de indicadores de eficiencia productiva y económica en el uso del agua de riego en el área regable de los Canales de Urgell (Lleida). Se ha realizado un estudio de costes, ingresos, ... -
Resistance, resilience or change: post-disturbance dynamics of boreal forests after insect outbreaks
(Springer, 2019)Understanding and measuring forest resistance and resilience have emerged as key priorities in ecology and management, particularly to maintain forest functioning. The analysis of the factors involved in a forest’s ability ... -
Resource and non‐resource root competition effects of grasses on early‐versus late‐successional trees
(John Wiley and Sons, 2009-04-08)1. This study assessed the effects of resource (i.e. nutrients) and non‐resource (i.e. interference for space) competition from fine roots of competing grasses on the growth, morphology and architecture of fine roots of ... -
Review. Precision viticulture. Research topics, challenges and opportunities in site-specific vineyard management
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2009)Precision Viticulture (PV) is a concept that is beginning to have an impact on the wine-growing sector. Its practical implementation is dependant on various technological developments: crop sensors and yield monitors, local ...