Browsing Articles publicats (Enginyeria Agroforestal) by Title
Now showing items 99-118 of 336
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Efectos de un incendio forestal sobre la respuesta hidrológica de la cuenca mediterránea de Arbúcies (cordilleras costeras catalanas, NE España)
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2004)En agosto de 1994 un incendio forestal afectó al 15% de la superficie de la cuenca experimental de la riera de Arbúcies. Se trata de una cuenca mediterránea de 106 km2, en la que predominan las masas de frondosas y los ... -
Efectos hidrogeomorfológicos aguas abajo de embalses
(Colegio de Ingenieros Técnicos de Obras Públicas (Madrid), 2004)En este artículo se expone una síntesis del estado del conocimiento sobre los efectos que tienen los embalses en el tramo fluvial aguas abajo de los mismos, en lo referente al régimen hidrológico, el transporte de sedimentos ... -
Effect of a longitudinal cut on the mechanical properties of small-diameter roundwood of Pinus nigra Arnold
(North Carolina State University, 2016)The use of roundwood in structures has drawbacks that include tapering and lack of flatness, which can be overcome by making a longitudinal cut to flatten one side. The aim of this work was to compare the mechanical behavior ... -
Effect of a lysine depletion-repletion protocol on the compensatory growth of growing-finishing pigs
(American Society of Animal Science, 2016-01-08)The effect of Lys restriction followed by a repletion period on the performance of growing pigs was studied during 3 feeding phases, each lasting 28 d. A total of 47 castrated male pigs (G Performer 8.0 × Fertilis 25 pigs; ... -
Effect of the anatomical structure, wood properties and machining conditions on surface roughness of wood
(Scielo, 2017)The main aim is to test the influence of anatomical structure (grain direction and elements size), wood hardness and machining conditions on wood surface roughness. 180 samples defect-free were obtained from beech, oak and ... -
Effect of vacuum and pressure treatments on the mechanical properties and moisture balance of wood from Pinus sylvestris
(North Carolina State University, 2016)Several works have analyzed the alteration in the mechanical strength of wood after the application of protective substances. However, it remains unclear whether the significant differences obtained are caused by the ... -
Effects of crown architecture and stand structure on light absorption in mixed and monospecific Fagus sylvatica and Pinus sylvestris forests along a productivity and climate gradient through Europe
(John Wiley and Sons, 2017-04-29)1. When tree‐species mixtures are more productive than monocultures, higher light absorption is often suggested as a cause. However, few studies have quantified this effect and even fewer have examined which light‐related ... -
Effects of tree size and position on pipe model ratios in Scots pine
(Canadian Science Publishing, 2005-07-02)We investigate how the foliage mass to wood area ratios depend on tree and stand characteristics of previously collected data from Scots pine (Pinus sylvestris L.). Our analysis allowed a separation of the relationship ... -
Effluent particle removal by microirrigation system filters
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2005)La distribución del número y del volumen de partículas, y la eficiencia de eliminación de las partículas y los sólidos en suspensión de diferentes efluentes y sus filtrados, fueron analizadas para estudiar si los filtros ... -
Ehrenfest dynamics is purity non-preserving: a necessary ingredient for decoherence
(American Institute of Physics, 2012)We discuss the evolution of purity in mixed quantum/classical approaches to electronic nonadiabatic dynamics in the context of the Ehrenfest model. As it is impossible to exactly determine initial conditions for a realistic ... -
Ehrenfest Statistical Dynamics in Chemistry: Study of Decoherence Effects
(American Chemical Society, 2018-06-26)In previous works, we introduced a geometric route to define our Ehrenfest statistical dynamics (ESD) and we proved that, for a simple toy model, the resulting ESD does not preserve purity. We now take a step further: we ... -
El canvi d'usos i l'expansió del pi negre (Pinus uncinata Ram.) al Pirineu català (1956-2006)
(Consorci Forestal de Catalunya, 2009) -
Elevation modulates the phenotypic responses to light of four co-occurring Pyrenean forest tree species
(Springer Nature, 2019)Key message. Elevation markedly modified the species-specific phenotypic responses of trees to light. The effects from elevation mostly occurred at organ level (SLA) for the montane species, but at whole-plant level ... -
Energy Saving in a Variable-Inclination Archimedes Screw
(OMICS International, 2015)An analysis was undertaken of a new development of Archimedes screw consisting of a variable-inclination screw suitable for applications in which the downstream level may vary (e.g. sea level). As a result the energy ... -
Equipos y máquinas para la corta y apeo de la madera
(Eumedia, 2001)Dentro de los equipos y maquinaria para la corta de madera hay que considerar dos subdivisiones: procedimientos manuales y mecanizados. En este artículo se recogen distintos sistemas y mejoras en los mismos, asi como una ... -
Equivalent roughness of gravel-bed rivers
(American Society of Civil Engineers, 2008)The relation between the equivalent roughness and different grain size percentiles of the sediment in gravel-bed rivers was determined under the hypothesis that the vertical distribution of the flow velocity follows a ... -
¿Es rentable la Agricultura de Precisión?
(New Ag International SARL, 2018-12)Al cabo de ocho artículos de la sección Precision Ag Corner en los que se revisan las diferentes herramientas de la agricultura de precisión (AP) que se utilizan en las diferentes etapas del ciclo dela AP, es el momento ... -
Estimación de emisiones de GEI y sus trayectorias en grandes incendios forestales en Cataluña, España
(Instituto de Ecología, A.C., 2019-07-29)A escala global, los incendios forestales son una fuente de emisiones significativas de gases y partículas a la atmosfera, emisiones que llegan a afectar grandes extensiones y pueden transportarse a distancias de escala ... -
Estimating Stem Volume in Eucalyptus Plantations Using Airborne LiDAR: A Comparison of Area- and Individual Tree-Based Approaches
(MDPI, 2020-05-09)Forest plantations are globally important for the economy and are significant for carbon sequestration. Properly managing plantations requires accurate information about stand timber stocks. In this study, we used the area ... -
Estimation and uncertainty of the mixing effects on Scots pine - European beech productivity from National Forest Inventories data
(MDPI, 2018)An increasing amount of research is focusing on comparing productivity in monospecific versus mixed stands, although it is difficult to reach a general consensus as mixing effects differ both in sign (over-yielding or ...