Browsing Articles publicats (Enginyeria Agroforestal) by Title
Now showing items 242-261 of 322
-
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 ... -
Root architecture and allocation patterns of eight native tropical species with different successional status used in open-grown mixed plantations in Panama
(Springer Nature, 2008-04-19)We investigated biomass allocation and root architecture of eight tropical species with different successional status, as classified from the literature, along a size gradient up to 5 m. We focused on belowground development, ... -
Root growth, soil water content and yield of barley under different tillage systems on two soils in semiarid conditions
(Elsevier, 2001)An experiment was conducted on two soils in a semiarid area in the Spain´s Ebro valley. Soil A was a Fluventic Xerochrept of 120 cm depth and Soil B was a Lithic Xeric Torriorthent of 30 cm depth. Three tillage systems ... -
Seguridad alimentaria y ambiental en tratamientos fitosanitarios
(Eumedia, 2002)Mientras el consumo de productos fitosanitorios se mantiene en España, el control químico de los organismos competidores de los cultivos cada vez se realiza con una mayor calidad. La seguridad alimentaria i el cuidado del ... -
Sensitivity of tree volume measurement to trajectory errors from a terrestrial LIDAR scanner
(Elsevier, 2010)The use of terrestrial LIDARs in agriculture enables the measurement of structural parameters of the orchards such as the volume of the trees. The sequence of two-dimensional scans performed with a LIDAR attached to a ... -
Setting the optimal length to be scanned in rows of vines by using mobile terrestrial laser scanners
(Springer Science+Business Media, 2017)Mapping the leaf area index (LAI) by using mobile terrestrial laser scanners (MTLS) is of significance for viticulture. LAI is related to plant vigour and foliar development being an important parameter for many agricultural ... -
Shade tolerance and the functional trait - demography relationship in temperate and boreal forests
(British Ecological Society, 2017)Despite being instrumental in forest ecology, the definition and nature of shade tolerance are complex and not beyond controversy. Moreover, the role it plays in the trait-demography relationship remains unclear. Here, we ... -
Short communication.Wood identification based on their common name and their transversal surface anatomy. Application to the batch from the expedition of Ruiz and Pavon
(Instituto Nacional de Investigación y Tecnologia Agraria y Alimentaria, 2011)Aim of study: To identify species of wood samples based on common names and anatomical analyses of their transversal surfaces (without microscopic preparations). Area of study: Spain and South America Material and methods: ... -
SIMLIDAR – Simulation of LIDAR performance in artificially simulated orchards
(Elsevier, 2012)SIMLIDAR is an application developed in C++ that generates an artificial orchard using a Lindenmayer system. The application simulates the lateral interaction between the artificial orchard and a laser scanner or LIDAR ... -
Sistema semiautomático para riego por superficie
(Reed Business Information, 1998)El sistema es aplicable para riego por tablares, y permite automatizar las acciones de apertura y cierre de una serie de compuertas durante un riego. El sistema está compuesto por una compuerta giratoria que es movida por ... -
Six-year time course of light-use efficiency, carbon gain and growth of beech saplings (Fagus sylvatica) planted under a Scots pine (Pinus sylvestris) shelterwood
(Oxford University Press, 2007-08-01)Two-year-old Fagus sylvatica L. saplings were planted under the cover of a Pinus sylvestris L. stand in the French Massif Central. The stand was differentially thinned to obtain a gradient of transmitted photosynthetically ... -
Software para la mejora del aprendizaje del cálculo estructural en ingeniería y arquitectura.Programa Barras V-2.0, Universitat de Lleida
(CIDUI Congrés Internacional de Docència Universitària i Innovació, 2012)Actualmente, para abordar el cálculo estructural en la Universitat de Lleida existe software de uso profesional. Los dos grandes inconvenientes para aplicarlo como herramienta de docencia son, su alto coste económico y ...