Now showing items 21-40 of 260

    • Applying cascade-correlation neural networks to in-fill gaps in Mediterranean daily flow data series 

      Vega García, Cristina; Decuyper, Mathieu; Alcázar Montero, Jorge (MDPI, 2019-08-15)
      The analyses of water resources availability and impacts are based on the study over time of meteorological and hydrological data trends. In order to perform those analyses properly, long records of continuous and reliable ...
    • 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 ...
    • Aspereza equivalente de ríos con contorno granular grueso 

      López Alonso, Raúl (Centro de Estudios y Experimentación de Obras Públicas, 2007)
      El concepto de aspereza equivalente (ks) permite relacionar la resistencia al flujo de cauces de contorno granular con el tamaño de las partículas que lo conforman, mediante la ley logarítmica de distribución vertical de ...
    • Assessing climate change impacts on wildfire exposure in Mediterranean areas 

      Lozano, Olga M.; Salis, Michele; Ager, Alan A.; Arca, Bachisio; Alcasena, Fermín; Monteiro, Antonio T.; Finney, Mark A.; Del Giudice, Liliana; Scoccimarro, Enrico; Spano, Donatella (Wiley, 2016)
      We used simulation modeling to assess potential climate change impacts on wildfire exposure in Italy and Corsica (France). Weather data were obtained from a regional climate model for the period 1981–2070 using the IPCC ...
    • Assessing Landscape Scale Wildfire Exposure for Highly Valued Resources in a Mediterranean Area 

      Alcasena, Fermín; Salis, Michele; Ager, Alan A.; Arca, Bachisio; Molina Terrén, Domingo; Spano, Donatella (Springer Verlag, 2015)
      We used a fire simulation modeling approach to assess landscape scale wildfire exposure for highly valued resources and assets (HVR) on a fire-prone area of 680 km2 located in central Sardinia, Italy. The study area was ...
    • Assessing opportunities for selective winery vintage with a market-driven composite index 

      Arnó Satorra, Jaume; Martínez Casasnovas, José Antonio (Cogent OA, 2017-10-13)
      An opportunity index (OISV) is proposed for selective vine harvest management to ensure vineyard sustainability making use of precision farming technologies. Vigour maps derived from remote sensors are the basis of the ...
    • Assessing ranked set sampling and ancillary data to improve fruit load estimates in peach orchards 

      Uribeetxebarria Alonso de Armiño, Asier; Martínez Casasnovas, José Antonio; Tisseyre, Bruno; Guillaume, Serge; Escolà i Agustí, Alexandre; Rosell Polo, Joan Ramon; Arnó Satorra, Jaume (Elsevier, 2019-08-08)
      Fruit load estimation at plot level before harvest is a key issue in fruit growing. To face this challenge, two sampling methods to estimate fruit load in a peach tree orchard were compared: simple random sampling (SRS) ...
    • Assessing the persistence capacity of communities facing natural disturbances on the basis of species response traits 

      Sánchez Pinillos, Martina; Coll Mir, Lluís; De Cáceres, Miquel; Améztegui González, Aitor (Elsevier, 2016)
      Adequately assessing the ecosystem resilience and resistance is a challenging and essential question in the current context of widespread environmental change. Here we suggest the use of a quantitative measure we call ...
    • Assessing wildland fire risk transmission to communities in northern Spain 

      Alcasena, Fermín; Salis, Michele; Ager, Alan A.; Castell, Rafael; Vega García, Cristina (MDPI, 2017-01-24)
      We assessed potential economic losses and transmission to residential houses from wildland fires in a rural area of central Navarra (Spain). Expected losses were quantified at the individual structure level (n = 306) in ...
    • Assessment of Recycling Tunnel Sprayers in Mediterranean Vineyards and Apple Orchards 

      Planas de Martí, Santiago; Solanelles Batlle, Francesc; Fillat, A. (Elsevier, 2002)
      The use of air-assisted recycling tunnel sprayers in Mediterranean fruit orchards and vineyards was assessed by comparing the performance of two tunnel sprayer prototypes with an air-assisted axial flow sprayer. Field ...
    • Assessment of spray drift potential reduction for hollow-cone nozzles: Part 1. Classification using indirect methods 

      Torrent Martí, Xavier; Gregorio López, Eduard; Douzals, Jean-Paul; Tinet, Cyril; Rosell Polo, Joan Ramon; Planas de Martí, Santiago (Elsevier B.V., 2019-06-10)
      Spray drift is one of the main pollution sources identified when pesticides are sprayed on crops. In this work, in order to simplify the evaluation of hollow-cone nozzles according to their drift potential reduction, several ...
    • Assessment of spray drift potential reduction for hollow-cone nozzles: Part 2. LiDAR technique 

      Gregorio López, Eduard; Torrent Martí, Xavier; Planas de Martí, Santiago; Rosell Polo, Joan Ramon (Elsevier B.V., 2019-06-11)
      Pesticide spray drift poses health hazards to humans and causes a significant impact on the environment. In this work the capacity of an ad hoc light detection and ranging (LiDAR) system to differentiate spray nozzles ...
    • Asturforesta'99, la feria monográfica del sector forestal en España 

      Arnó i Pujol, Judit; Masip Vilalta, Joan (Eumedia, 1999)
      Durante los días 20, 21 y 22 de marzo de ha celebrado la que puede considerarse la feria monográfica del sector forestal en España. Asturforesta'99, en Tineo (Principado de Asturias).
    • BAAD: a Biomass And Allometry Database for woody plants 

      Falster, Daniel S.; Duursma, Remko A.; Ishihara, Masae I.; Barneche, Diego R.; FitzJohn, Richard G.; Vårhammar, Angelica; Aiba, Mashiro; Ando, Makoto; Anten, Niels P. R.; Aspinwall, Michael J.; Baltzer, Jennifer L.; Baraloto, Christopher; Battaglia, Michael; Battles, John J.; Bond-Lamberty, Ben; Breugel, Michiel van; Camac, James; Claveau, Yves; Coll Mir, Lluís; Dannoura, Masako; Delagrange, Sylvain; Domec, Jean-Christophe; Fatemi, Farrah; Feng, Wang; Gargaglione, Veronica; Goto, Yoshiaki; Hagihara, Akio; Hall, Jefferson S.; Hamilton, Steve; Harja, Degi; Hiura, Tsutom; Holdaway, Robert; Hutley, Lindsay B.; Ichie, Tomoaki; Jokela, Eric J.; Kantola, Anu; Kelly, Jeff W.; Kenzo, Tanaka; King, David; Kloeppel, Brian D.; Komiyama, Akira; Laclau, Jean-Paul; Lusk, Christopher H.; Maguire, Douglas A.; Maire, Guerric le; Mäkelä, Annikki; Markesteijn, Lars; Marshall, John; McCulloh, Katherine; Miyata, Itsuo; Mokany, Karel; Mori, Shigeta; Myster, Randall W.; Nagano, Masahiro; Naidu, Shawna L.; Nouvellon, Yann; O'Grady, Anthony P.; O'Hara, Kevin L. (Kevin Laughlin); Ohtsuka, Toshiyuki; Osada, Noriyuki; Osunkoya, Olusegun O.; Peri, Pablo L.; Petritan, Any Mary; Poorter, Lourens; Portsmuth, Angelika; Potvin, Catherine; Ransijn, Johannes; Reid, Douglas; Ribeiro, Sabina C.; Roberts, Scott D.; Rodríguez, Rolando; Saldaña-Acosta, Angela; Santa Regina Rodriguez, Ignacio; Sasa, Kaichiro; Selaya, N. Galia; Sillett, Stephen C.; Sterck, Frank; Takagi, Kentaro; Tange, Takeshi; Tanouchi, Hiroyuki; Tissue, David T.; Umehara, Toru; Utsugi, Hajime; Vadeboncoeur, Matthew A.; Valladares, Fernando; Vanninen, Petteri; Wang, Jian R.; Wenk, Elizabeth; Williams, Richard J.; Ximenes, Fabiano de Aquino; Yamaba, Atsushi; Yamada, Toshihiro; Yamakura, Takuo; Yanai, Ruth D.; York, Robert A. (Ecological Society of America, 2015)
      Understanding how plants are constructed i.e., how key size dimensions and the amount of mass invested in different tissues varies among individuals is essential for modeling plant growth, carbon stocks, and energy fluxes ...
    • Backscatter Error Bounds for the Elastic Lidar Two-Component Inversion Algorithm 

      Rocadenbosch Burillo, Francesc; Frasier, Stephen; Kumar, Dhiraj; Lange, Diego; Gregorio López, Eduard; Sicard, Michaël (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Total backscatter-coefficient inversion error bounds for the two-component lidar inversion algorithm (so-called Fernald's or Klett-Fernald-Sasano's method) are derived in analytical form in response to the following three ...
    • Birch and conifer deadwood favour early establishment and shade tolerance in yellow birch juveniles growing on sugar maple dominated stands 

      Lambert, Jean-Bastien; Améztegui González, Aitor; Delagrange, Sylvain; Messier, Christian (NRC Research Press, 2016)
      Small-seeded tree species such as yellow birch (YB, Betula alleghaniensis Britt.) require deadwood or mineral soil for their establishment. Although much research has been done comparing YB germination on leaf litter vs. ...
    • Bird community response in mountain pine forests of the Pyrenees managed under a shelterwood system 

      Améztegui González, Aitor; Gil Tena, Assumpció; Faus, Jordi; Piqué i Nicolau, Míriam; Brotons, Lluís; Camprodon, Jordi (Elsevier, 2018)
      Understanding the effects of forest management on biodiversity is a vital challenge given the current regime of large-scale socio-ecological drivers affecting forest ecosystems and their multifunctionality. Here we assessed ...
    • Calibration of FARSITE simulator in northern Iranian forests 

      Jahdi, R.; Salis, Michele; Darvishsefat, A. A.; Mostafavi, M. A.; Alcasena, Fermín; Etemad, V.; Lozano, Olga M.; Spano, Donatella (European Geosciences Union; Copernicus Publications, 2015)
      Wildfire simulators based on empirical or physical models need to be locally calibrated and validated when used under conditions that differ from those where the simulators were originally developed. This study aims to ...
    • La calidad de las aplicaciones de los productos fitosanitarios 

      Planas de Martí, Santiago (Eumedia, 2000)
      La multinacional BASF, en colaboración con la constructora de maquinaria agrícola Ilemo-Har- di y la comercial Safi Ibérica, distribuidora de las boquillas de pulverización Albuz, está desa- rrollando un interesante ...
    • Can Precision Agriculture be profitable? 

      Arnó Satorra, Jaume; Martínez Casasnovas, José Antonio; Escolà i Agustí, Alexandre (New Ag International SARL, 2018-11-01)
      After eight Precision Ag Corner columns reviewing the different tools for precision agriculture (PA) taking part in the different stages of the PA cycle, it is time to assess its profitability. Is it worth investing in all ...