Now showing items 1-20 of 241

    • A fire modeling approach to assess wildfire exposure of valued resources in central Navarra, Spain 

      Alcasena, Fermín; Salis, Michele; Vega García, Cristina (Springer Verlag, 2015-10-27)
      Wildfires are a growing threat to socio-economic and natural resources in the wildland-rural-urban intermix in central Navarra (Spain), where recent fast-spreading and spotting short fire events have overwhelmed suppression ...
    • A LiDAR-Based System to Assess Poplar Biomass 

      Andújar, Dionisio; Escolà i Agustí, Alexandre; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Rueda-Ayala, Victor; Fernandez Quintanilla, C.; Ribeiro, Angela; Dorado, José (Springer-Verlag, 2016-06-21)
      This study evaluated the capabilities of a LiDAR-based system to characterize poplar trees for biomass production. The precision of the system was assessed by analyzing the relationship between the distance records and ...
    • A method to obtain orange crop geometry information using a mobile terrestrial laser scanner and 3D modeling 

      Colaço, André F.; Trevisan, Rodrigo G.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre (MDPI, 2017)
      LiDAR (Light Detection and Ranging) technology has been used to obtain geometrical attributes of tree crops in small field plots, sometimes using manual steps in data processing. The objective of this study was to develop ...
    • A review of methods and applications of the geometric characterization of tree crops in agricultural activities 

      Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo (Elsevier, 2012)
      This paper presents the foundations and applications in agriculture of the main systems used for the geometrical characterization of tree plantations, including systems based on ultrasound, digital photographic techniques, ...
    • A tractor-mounted scanning LIDAR for the non-destructive measurement of vegetative volume and surface area of tree-row plantations: a comparison with conventional destructive measurements 

      Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Llorens Calveras, Jordi; Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Ribes Dasi, Manuel; Masip Vilalta, Joan; Camp, Ferran; Gràcia, Felip; Solanelles Batlle, Francesc; Pallejà Cabrè, Tomàs; Val, Luis; Planas de Martí, Santiago; Gil Moya, Emilio; Palacín Roca, Jordi (Elsevier, 2009)
      The use of a low-cost tractor-mounted scanning Light Detection and Ranging (LIDAR) system for capable of making non-destructive recordings of tree-row structure in orchards and vineyards is described. Field tests consisted ...
    • Advanced Technologies for the Improvement of Spray Application Techniques in Spanish Viticulture: An Overview 

      Rosell Polo, Joan Ramon; Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Gil Moya, Emilio; Llorens Calveras, Jordi; Llop, Jordi; Gallart, Montserrat (MDPI, 2014)
      Spraying techniques have been undergoing continuous evolution in recent decades. This paper presents part of the research work carried out in Spain in the field of sensors for characterizing vineyard canopies and monitoring ...
    • Agricultura de Precisión 

      Escolà i Agustí, Alexandre (Aragón agrario : revista del sector agrícola aragonés, 2018-04-01)
    • Agricultura de Precisión: ¿Qué se oculta detrás del nombre? 

      Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Martínez Casasnovas, José Antonio (New Ag International SARL, 2017-01-01)
      El término Agricultura de Precisión (AP) se ha discutido mucho durante los últimos años en exhibiciones y conferencias sobre agricultura, encuentros profesionales, revistas y cafés. Por otra parte también se usan expresiones ...
    • Agricultura y distribución de los recursos hidráulicos 

      Planas de Martí, Santiago (Eumedia, 1995)
      La historia de las civilizaciones se escribe también como la de la lucha permanente por disponer del agua necesaria para satisfacer las necesidades presentes y futuras, siendo ello motivo de contficto frecuente entre ...
    • Airborne spray drift measurement using passive collectors and lidar systems 

      Gregorio López, Eduard; Solanelles Batlle, Francesc; Rocadenbosch Burillo, Francesc; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo (Society of Photo-optical Instrumentation Engineers (SPIE), 2011)
      Minimization of the risk associated with spray applications requires a proper understanding of the spray drift phenomenon. This fact has led to the development of several techniques to measure the deposition on horizontal ...
    • Algebraic path tracking to aid the manual harvesting of olives using an automated service unit 

      Auat Cheein, Fernando A.; Scaglia, Gustavo; Torres-Torriti, Miguel; Guivant, José; Prado, Alvaro Javier; Arnó Satorra, Jaume; Escolà i Agustí, Alexandre; Rosell Polo, Joan Ramon (Elsevier, 2016)
      Service units used in precision agriculture are able to improve processes such as harvesting, sowing, agrochemical application, and manure spreading. This two-part work presents, a path tracking controller based on an ...
    • An automated disc infiltrometer for infiltration rate measurements using a microflowmeter 

      Moret Fernández, D.; Gonzalez, C.; Lampurlanés Castel, Jorge; Vicente, J. (Wiley, 2012)
      This work presents a new design of disc infiltrometer, which, associated with a microflowmeter (MF) and a solenoid valve set, makes it possible to automate the infiltration rate (Q) measurements at different soil pressure ...
    • An Electronic Control System for Pesticide Application Proportional to the Canopy Width of Tree Crops 

      Solanelles Batlle, Francesc; Escolà i Agustí, Alexandre; Planas de Martí, Santiago; Rosell Polo, Joan Ramon; Camp, Ferran; Gràcia, Felip (Elsevier, 2006)
      A prototype of an electronic control system based on ultrasonic sensors and proportional solenoid valves for a proportional application to the canopy width of tree crops was mounted on an air-assisted sprayer. The sprayer ...
    • Analysis of factors influencing deployment of fire suppression resources in Spain using artificial neural networks 

      Costafreda Aumedes, Sergi; Cardil Forradellas, Adrián; Molina Terrén, Domingo; Daniel, Sarah N.; Mavsar, Robert; Vega García, Cristina (Italian Society of Silviculture and Forest Ecology (SISEF), 2015)
      In Spain, the established fire control policy states that all fires must be controlled and put out as soon as possible. Though budgets have not restricted operations until recently, we still experience large fires and ...
    • Analysis of vineyard differential management zones and relation to vine development, grape maturity and quality 

      Martínez Casasnovas, José Antonio; Agelet Fernández, J.; Arnó Satorra, Jaume; Ramos Martín, Ma. C. (Ma. Concepción) (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2012)
      The objective of research was to analyse the potential of Normalized Difference Vegetation Index (NDVI) maps from satellite images, yield maps and grapevine fertility and load variables to delineate zones with different ...
    • Analyzing seasonal patterns of wildfire exposure factors in Sardinia, Italy 

      Salis, Michele; Ager, Alan A.; Alcasena, Fermín; Arca, Bachisio; Finney, Mark A.; Pellizzaro G; Spano, Donatella (Springer, 2015)
      In this paper, we applied landscape scale wildfire simulation modeling to explore the spatiotemporal patterns of wildfire likelihood and intensity in the island of Sardinia (Italy). We also performed wildfire exposure ...
    • Análisis estadístico de los nombres comerciales de maderas en un país (España) 

      Blanco Ortiz, Ricardo; Villasante Plágaro, Antonio M.; Vignote, Santiago (Instituto de Ecologia, A.C., 2014)
      La denominación comercial de las maderas es un tema extensamente tratado desde hace bastantes años. Sin embargo, la mayoría de los trabajos se limitan a recopilar nombres vulgares de una forma ordenada y más o menos extensa. ...
    • Aplicabilidad del riego a pulsos en tablares 

      Monserrat Viscarri, Joaquín; Casali Sarasibar, Javier; Tilló, J.; Cots Rubió, Lluís; Barragán Fernández, Javier (Universidad Politécnica de Valencia, 1997)
      Se presentan ocho ensayos comparativos entre riego a pulsos y riego continuo en tablares, para variadas condiciones de parcelas y variables de riego. Se ha analizado el tiempo de aplicación para llegar al final de la ...
    • Application of light detection and ranging and ultrasonic sensors to high-throughput phenotyping and precision horticulture: current status and challenges 

      Colaço, André F.; Molin, José P.; Rosell Polo, Joan Ramon; Escolà i Agustí, Alexandre (Springer Nature, 2018)
      Ultrasonic and light detection and ranging (LiDAR) sensors have been some of the most deeply investigated sensing technologies within the scope of digital horticulture. They can accurately estimate geometrical and structural ...
    • Applying precision feeding techniques in growing-finishing pig operations 

      Pomar, Càndido; Hauschild, Luciano; Zhang, Guo-Hua; Pomar Gomà, Jesús; Lovatto, Paolo Alberto (Sociedade Brasileira de Zootecnia, 2009)
      The high cost of feed ingredients, the use of non-renewable sources of phosphate and the dramatic increase in the environmental load resulting from the excessive land application of manure are major challenges for the ...