Listar DIF-Artículos, capítulos... por título
Mostrando ítems 61-80 de 160
-
Efecto de los sistemas de riego en la rentabilidad de plantaciones de eucalipto (Eucalyptus globulus)
(Colegio de Postgraduados (México), 2010)El riego es utilizado con mayor frecuencia para establecer plantaciones, con el fin de aumentar el crecimiento y la productividad por superficie. Se estudió el efecto de tres sistemas de riego: microaspersión (T1), goteo ... -
Efecto de poda y raleo en el área foliar de Eucalyptus nitens
(Universidad Austral de Chile, 2008)Eucalyptus nitens is an important commercial fast growing species planted mainly in Chile and Australia (Tasmania). In Chile there are not previously published studies quantifying leaf area in adult forest plantations of ... -
Effect of leaves in the dynamic response of olive tree branches and their computational model
(Elsevier, 2022)The application of vibration in the mechanical harvesting of fruit trees is a determining factor to achieve fruit detachment. The acceleration required to do so is experimentally determined in expensive tests using ... -
Effects of two water regimes on morphological traits, nutritive value and physiology of three Bituminaria bituminosa varieties from the Canary Islands
(Wiley, 2021)Morphological traits, nutritive values and physiological responses to two different water regimes of three Bituminaria bituminosa varieties: var. albomarginata, var. crassiuscula and var. bituminosa were evaluated in a ... -
Establecimiento de una red de equilibrios biológicos en ecosistemas con presencia de pinsapo (abies pinsapo boiss.) en Andalucía
(Consejo Superior de Investigaciones Científicas (CSIC), 2004) -
Estimating leaf carotenoid content in vineyards using high resolution hyperspectral imagery acquired from an unmanned aerial vehicle (UAV)
(Science Direct, 2013)Chlorophyll a+b (Ca+b) and carotenoids (Cx+c) are leaf pigments associated with photosynthesis, participation in light harvesting and energy transfer, quenching and photoprotection. This manuscript makes progress on ... -
Estimating pasture quality of Mediterranean grasslands using hyperspectral narrow bands from field spectroscopy by Random Forest and PLS regressions
(Elsevier, 2022)Mediterranean grasslands are a cornerstone ecosystem to provide ecosystem services and sustain human societies. The sustainability and provision of ecosystem services by these systems rely on their management. One of the ... -
Evaluación de la mortalidad de bosques de ñirre (Nothofagus antarctica) en la Patagonia chilena mediante imágenes Landsat TM y ETM+
(Universidad Austral de Chile, 2008)Antarctic beech forests (Nothofagus antarctica (G. Forst.) Oerst.) have shown a major decline process in the past few decades, together with an important lack of specific studies on this type of forest. The aim of this ... -
Evaluación de la rentabilidad del manejo en bosques secundarios de canelo (Drimys winteri) en la Cordillera de la Costa de Valdivia, Chile
(Universidad Austral de Chile, 2010)Young secondary forests of Drimys winteri have excellent growth and regeneration, and cover an area of 230,000 hectares in Chile. However, there is no supply of high-value timber to feed the growing market opportunities. ... -
Evaluación de la resistencia aparente de individuos de encina a Phytophthora cinnamomi Rands.
(Ministerio de Medio Ambiente, Medio Rural y Marino, 2009)En este trabajo se ha inoculado con Phytophthora cinnamomi plantas de encina producidas a partir de bellotas de árboles seleccionados en campo por su resistencia o susceptibilidad aparente a esta enfermedad. La altura final ... -
Evaluación temprana de técnicas de restauración forestal mediante fluorescencia de la clorofila y diagnóstico de vitalidad de brinzales de encina (Quercus ilex sub. ballota)
(Universidad Austral de Chile, 2012)Chlorophyll a fluorescence has been applied to study the evolution of leaf photoprotection processes to dissipate excess absorbed energy that can not be fully utilized in photochemical reactions, and reflects the plants ... -
Evaluating models to assess the distribution of Buxus balearica in southern Spain
(Wiley, 2010)uestion: Which is the best model to predict the habitat distribution of Buxus balearica Lam. in southern Spain? Location: Málaga and Granada, Spain, across an area of 38 180 km2. Methods: Prediction models based on ... -
Evaluation of the Harvest of Prunus africana Bark on Bioko (Equatorial Guinea): Guidelines for a Management Plan
(Servicio de Publicaciones Universidad de Córdoba, 2006)En esta obra se aborda el estado de Prunus africana como consecuencia de la extracción a la que ha estado sometida esta especie durante el periodo (1996-2004) debido a la demanda internacional de productos derivados de la ... -
Fireline production rate of handcrews in wildfires of the Spanish Mediterranean region
(CSIRO, 2023)Background. Handcrews dig handlines to bare mineral soil for fire containment. Increasing the amount of firefighting resources is insufficient to mitigate wildfire damage or decrease the number of large fires. Aims. This ... -
Fitotoxicidad del fosfonato en brinzales de encina Quercus ilex L. subsp. ballota (Desf.) Samp.
(Ministerio de Medio Ambiente, Medio Rural y Marino, 2007)El fosfonato es un fertilizante foliar que ha sido utilizado con éxito en el control de P. cinnamomi en varias especies forestales. Aunque se considera que los fosfonatos tienen un bajo nivel de toxicidad, se han observado ... -
Forest plantations in Manabí (Ecuador): assessment of fragmentation and connectivity to support dry tropical forests conservation
(MDPI, 2023)In many tropical regions, national forests plantation programs have been promoted. Those plantations frequently contribute to habitat changes. However, the associated effects of forest plantations on habitat fragmentation ... -
Fragmentation and Connectivity in dehesa Ecosystems Associated with Cerambyx spp. Dispersion and Control: A Graph-Theory Approach
(MDPI, 2024)Xylophagous insects play a crucial role in forest ecosystems, contributing to population dynamics. The “Cerambyx complex” (CC) constitutes an emerging pest in Mediterranean oak woodlands. We studied the fragmentation and ... -
Fuel Modelling Characterisation Using Low-Density LiDAR in the Mediterranean: An Application to a Natural Protected Area
(MDPI, 2021)Fuel structure and characteristics are important to better understand and predict wildfire behaviour. The aim of the present study was to develop a methodology for characterising fuel models using low-density and free LiDAR ... -
Getting Ahead of the Wildfire Problem: Quantifying and Mapping Management Challenges and Opportunities
(MDPI, 2016)Wildfire is a global phenomenon that plays a vital role in regulating and maintaining many natural and human-influenced ecosystems but that also poses considerable risks to human populations and infrastructure. Fire ... -
Global ecosystem thresholds driven by aridity
(American Association for the Advancement of Science, 2020)Aridity, increasing worldwide due to climate change, affects the structure and functioning of dryland ecosystems. Whether aridification leads to gradual (vs. abrupt) and systemic (vs. specific) ecosystem changes is largely ...