Browsing Articles publicats (Enginyeria Agroforestal) by Title
Now showing items 147-166 of 336
-
Georeferenced Scanning System to Estimate the Leaf Wall Area in Tree Crops
(MDPI, 2015)This paper presents the use of a terrestrial light detection and ranging (LiDAR) system to scan the vegetation of tree crops to estimate the so-called pixelated leaf wall area (PLWA). Scanning rows laterally and considering ... -
Gestión de datos y toma de decisiones: cuando la agricultura de precisión nos pone en aprietos
(New Ag International SARL, 2018-07-01)El uso de sensores en Agricultura de Precisión en conjunto con la tendencia de tener mejores resoluciones de muestreo espacial y temporal ha llevado a una enorme acumulación de datos. Y es un gran desafío poder gestionar ... -
Gestión selvícola y regeneración natural ante un futuro incierto: marco teórico y principios generales
(Sociedad Española de Ciencias Forestales, 2014)Desde hace algunas décadas los bosques ibéricos están sujetos a un importante proceso de cambio, moti-vado por un conjunto de razones de índole ambiental y socio-económico. Ante este contexto de creciente in-certidumbre ... -
Growth and yield of mixed versus pure stands of Scots pine (Pinus sylvestris L. ) and European beech (Fagus sylvatica L.) analysed along a productivity gradient through Europe
(Springer, 2015)Mixing of complementary tree species may increase stand productivity, mitigate the effects of drought and other risks, and pave the way to forest production systems which may be more resource-use efficient and stable in ... -
Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation management techniques
(Institut National de la Recherche Agronomique (INRA)EDP Sciences, 2007-04-11)The effect of different vegetation control methods (mowing and cultivation between plantation rows, herbicide application and cover plant sowing) on hybrid poplar (P. maximowiczii $\times$ balsamifera) growth, biomass ... -
Hacia la mecanización integral de la recolección de aceituna
(Eumedia, 1995)La recoleción de la aceituna sigue siendo uno de los grandes problemas con que se enfrentan los productores. En grandes zonas de olivar de la D.O. Garrigues, a pesar de que se han introducido los vibradores multidireccionales, ... -
Hacia un sistema armonizado de ajuste de la dosis en un tratamiento fitosanitario
(Eumedia, 2012)Tradicionalmente, las dosis indicadas en las etiquetas de los envases de los productos fitosanitarios se expresan en función de uno, o muy pocos, de los factores que intervienen en toda aplicación. El camino hacia la ... -
Herbivory and seedling establishment in Pyrenean forests: Influence of micro- and meso-habitat factors on browsing pressure
(Elsevier, 2015)Browsing damage is among the most determinant factors that limit the establishment of tree seedlings in forests. In some areas, this process leads to massive mortalities that can reduce or even completely prevent the ... -
History matters: previous land use changes determine post-fire vegetation recovery in forested Mediterranean landscapes
(Elsevier, 2012-06-23)Land use changes and shifts in disturbance regimes (e.g. wildfires) are recognized worldwide as two of the major drivers of the current global change in terrestrial ecosystems. We expect that, in areas with large-scale ... -
Host selection by the autoparasitoid Encarsia pergandiella on primary (Bemisia tabaci) and secondary (Eretmocerus mundus) hosts
(Wiley, 2015)In autoparasitoids, females are generally primary endoparasitoids of Hemiptera, while males are hyperparasitoids developing in or on conspecific females or other primary parasitoids. Female-host acceptance can be influenced ... -
How to get and what to do with coloured maps
(New Ag International SARL, 2018-03-12)Since our first editorial, the Precision Ag Corner is following the cycle of Precision Agriculture (PA) described in the first issue. Until now, we have described how to obtain georeferenced data using visual observations ... -
Human-caused fire occurrence modelling in perspective: a review
(CSIRO Publishing, 2017)The increasing global concern about wildfires, mostly caused by people, has triggered the development of human-caused fire occurrence models in many countries. The premise is that better knowledge of the underlying factors ... -
Hydraulic conductivity, residue cover and soil surface roughness under different tillage systems in semiarid conditions
(Elsevier, 2006)The objective of this study was to investigate the effect of tillage and cropping system on near-saturated hydraulic conductivity, residue cover and surface roughness to improve soil management for moisture conservation ... -
Identificación de competencias docentes que orienten el desarrollo de planes de formación dirigidos a profesorado universitario
(Universidad Politécnica de Valencia, 2012)Este artículo presenta el proyecto desarrollado durante el año 2011 por las unidades y centros de formación de las universidades públicas catalanas. El proyecto se orienta a la mejora de la calidad del sistema de educación ... -
Identifying wildfire-prone atmospheric circulation weather types on mainland Spain
(Elsevier, 2018-10-15)In this paper we present a detailed spatial assessment of the association between atmospheric synoptic conditions (the weather types, WT) and fires on the Spanish mainland. The WT approach allows the continuum of atmospheric ... -
Imaginando la agricultura en 40 años más
(New Ag International SARL, 2017-07-01)Por primer vez, la 15ª Conferencia & Exhibición New Ag International realizada en Berlín tuvo una sesión sobre agricultura de precisión. Y esto reafirma el compromiso de New Ag International con este nuevo paradigma en ... -
Imagine how agriculture may look like in 40 years
(New Ag International SARLNew Ag International SARL, 2017-06-01)For the first time, the 15th New Ag Conference & Exhibition held in Berlin hosted a technical session on Precision Agriculture. This reaffirms the commitment of New Ag International with this new paradigm of agriculture. ... -
Indicadores de la gestión del agua en los canales de Urgell (Lleida)
(Reed Business Information, 2007)En este trabajo se presentan los resultados de una serie de indicacores de la gestión del agua en área regada por los canales del Urgell (Lleida), en el ámbito de la cuenca del río Corb de 36350 ha. De la recopilación de ... -
Influence of the scanned side of the row in terrestrial laser sensor applications in vineyards: practical consequences
(Springer, 2015)Terrestrial laser scanners (TLS) have been used to estimate leaf area and optimise the site-specific management in vineyards. The tree area index (TAI) is a parameter that can be obtained from TLS measurements and has been ... -
Innovative LIDAR 3D dynamic measurement system to estimate fruit-tree leaf area
(Molecular Diversity Preservation International (MDPI), 2011)In this work, a LIDAR-based 3D Dynamic Measurement System is presented and evaluated for the geometric characterization of tree crops. Using this measurement system, trees were scanned from two opposing sides to obtain two ...