Now showing items 25-44 of 71

    • Gestión forestal sostenible de masas de pino silvestre en el Pirineo Navarro 

      Castillo Martínez, Federico Upna; Imbert Rodríguez, Bosco Upna; Blanco Vaca, Juan Antonio Upna; Traver, Carmen; Puertas, Fernando (Asociación Española de Econología Terrestre, 2003)   Artículo / Artikulua  OpenAccess
      La política forestal actual se caracteriza por un compromiso hacia una gestión ecológicamente sostenible de los ecosistemas forestales. Para poder realizarla es necesario conocer los factores que afectan al uso de los ...
    • Impacts of enhanced nitrogen deposition and soil acidification on biomass production and nitrogen leaching in Chinese fir plantations 

      Blanco Vaca, Juan Antonio Upna; Wei, Xiaohua; Jiang, Hong; Jie, Cheng-Yue; Xin, Zan-Hong (NRC Research Press, 2012)   Artículo / Artikulua  OpenAccess
      Atmospheric pollution levels in China are increasing quickly. Experience from other polluted regions shows that tree growth could be affected, but long-term effects of N deposition and soil acidification on Chinese forests ...
    • Impairment of carbon metabolism induced by the herbicide glyphosate 

      Orcaray Echeverría, Luis Upna; Zulet González, Amaia Upna; Zabalza Aznárez, Ana Upna; Royuela Hernando, Mercedes Upna (Elsevier, 2012)   Artículo / Artikulua  OpenAccess
      The herbicide glyphosate reduces plant growth and causes plant death by inhibiting the biosynthesis of aromatic amino acids. The objective of this work was to determine whether glyphosate-treated plants show a carbon ...
    • Importancia de la caracterización de la biomasa de raíces en la simulación de ecosistemas forestales 

      Gárate Bienzobas, Mikel; Blanco Vaca, Juan Antonio Upna (Asociación Española de Ecología Terrestre, 2013)   Artículo / Artikulua  OpenAccess
      Los análisis de sensibilidad son una herramienta importante para comprender el funcionamiento de los modelos ecológicos, así como para identificar los parámetros más importantes en su funcionamiento. Además, los análisis ...
    • Increased complementarity in water-limited environments in Scots pine and European beech mixtures under climate change 

      González de Andrés, Ester Upna; Seely, Brad; Blanco Vaca, Juan Antonio Upna; Imbert Rodríguez, Bosco Upna; Lo, Yueh-Hsin Upna; Castillo Martínez, Federico Upna (Wiley, 2017)   Artículo / Artikulua  OpenAccess
      Management of mixedwoods is advocated as an effective adaptation strategy to increase ecosystem resiliency in the context of climate change. While mixedwoods have been shown to have greater resource use efficiency ...
    • Induction of the PDH bypass and upregulation of the ALDH7B4 in plants treated with herbicides inhibiting amino acid biosynthesis 

      Gil Monreal, Miriam Upna; Zabalza Aznárez, Ana Upna; Missihoun, Tagnon D.; Dormann, Peter; Bartels, Dorothea (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      Imazamox and glyphosate represent two classes of herbicides that inhibit the activity of acetohydroxyacid synthase in the branched-chain amino acid biosynthesis pathway and the activity of 5-enolpyruvylshikimate-3-phosphate ...
    • Influence of thinning intensity and canopy type on Scots pine stand and growth dynamics in a mixed managed forest 

      Primicia Alvarez, Irantzu Upna; Artázcoz, Rubén; Imbert Rodríguez, Bosco Upna; Puertas, Fernando; Traver, Carmen; Castillo Martínez, Federico Upna (Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA), 2016)   Artículo / Artikulua  OpenAccess
      Aim of the study: We analysed the effects of thinning intensity and canopy type on Scots pine growth and stand dynamics in a mixed Scots pine-beech forest. Area of the study: Western Pyrenees. Material and methods: Three ...
    • Instrumental colour measurement as a tool for light veal carcasses online evaluation 

      Horcada, Alberto; Juarez, Manuel; Molina, Antonio; Valera, Mercedes; Beriain Apesteguía, María José Upna (Copernicus Publications, 2013)   Artículo / Artikulua  OpenAccess
      Eight-hundred and forty-five veal carcasses (535 males and 310 females) from Pirenaica breed and its crosses with Charolais and Limousin were used to compare carcass colour visual assessments 60min post-mortem with the ...
    • Is N-feedback involved in the inhibition of nitrogen fixation in drought-stressed Medicago truncatula? 

      Gil Quintana, Erena Upna; Larrainzar Rodríguez, Estíbaliz Upna; Arrese-Igor Sánchez, César Upna; González García, Esther Upna (Oxford University PressSociety for Experimental Biology, 2013)   Artículo / Artikulua  OpenAccess
      Drought stress is a major factor limiting nitrogen fixation (NF) in crop production. However, the regulatory mechanism involved and the origin of the inhibition, whether local or systemic, is still controversial and so far ...
    • Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region 

      Lasa Larrea, Berta; Irañeta, Iosu; Muro Erreguerena, Julio Upna; Irigoyen Iriarte, Ignacio Upna; Aparicio Tejo, Pedro María Upna (Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, 2011)   Artículo / Artikulua  OpenAccess
      Nitrate leaching as a result of excessive application of N-fertilizers and water use is a major problem of vulnerable regions. The farming of maize requires high N fertilization and water inputs in Spain. Isotopic ...
    • Land use change effects on carbon and nitrogen stocks in the Pyrenees during the last 150 years: a modelling approach 

      Lo, Yueh-Hsin Upna; Blanco Vaca, Juan Antonio Upna; Canals Tresserras, Rosa María Upna; González de Andrés, Ester Upna; San Emeterio Garciandía, Leticia Upna; Imbert Rodríguez, Bosco Upna; Castillo Martínez, Federico Upna (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      In the southern Pyrenees, human population and therefore land uses have changed from forests to pastures, then crops, and back to pastures and secondary forests during the last two centuries. To understand what such rapid ...
    • Leaf δ15N as a physiological indicator of the responsiveness of N2-fixing alfalfa plants to elevated CO2, temperature and low water availability 

      Ariz, Idoia Upna; Cruz, Cristina; Neves, Tomé; Irigoyen, Juan J.; García Olaverri, Carmen Upna; Nogués, Salvador; Aparicio Tejo, Pedro María Upna; Aranjuelo Michelena, Iker (Frontiers Media, 2015)   Artículo / Artikulua  OpenAccess
      The natural 15N/14N isotope composition (δ15N) of a tissue is a consequence of its N source and N physiological mechanisms in response to the environment. It could potentially be used as a tracer of N metabolism in plants ...
    • Leaves play a central role in the adaptation of nitrogen and sulfur metabolism to ammonium nutrition in oilseed rape (Brassica napus) 

      Coleto, Inmaculada; Peña, Marlon de la; Rodríguez Escalante, Jon; Bejarano, Iraide; Glauser, Gaëtan; Aparicio Tejo, Pedro María Upna; González Moro, María B.; Marino Bilbao, Daniel Upna (BioMed Central, 2017)   Artículo / Artikulua  OpenAccess
      Background: The coordination between nitrogen (N) and sulfur (S) assimilation is required to suitably provide plants with organic compounds essential for their development and growth. The N source induces the adaptation of ...
    • Local (gut) and systemic metabolism of rats is altered by consumption of raw bean (Phaseolus vulgaris L. var. athropurpurea) 

      Cavallé de Moya, Carmen; Grant, George; Frühbeck, Gema; Urdaneta, Elena; García, María; Marzo Pérez, Florencio Upna; Santidrián, Santiago (Cambridge University Press, 2003)   Artículo / Artikulua  OpenAccess
      The composition of the raw legume Phaseolus vulgaris L. var. athropurpurea (PhVa) and its effects on the metabolism of young growing rats have been evaluated. The levels of protein, unsaturated fatty acids, carbohydrate, ...
    • Local inhibition of nitrogen fixation and nodule metabolism in drought-stressed soybean 

      Gil Quintana, Erena Upna; Larrainzar Rodríguez, Estíbaliz Upna; Seminario Huárriz, Amaia Upna; Díaz Leal, Juan Luis; Alamillo, Josefa M.; Pineda, Manuel; Arrese-Igor Sánchez, César Upna; Wienkoop, Stefanie; González García, Esther Upna (Oxford University PressSociety for Experimental Biology, 2013)   Artículo / Artikulua  OpenAccess
      Drought stress is a major factor limiting symbiotic nitrogen fixation (NF) in soybean crop production. However, the regulatory mechanisms involved in this inhibition are still controversial. Soybean plants were symbiotically ...
    • Long-term mannitol-induced osmotic stress leads to stomatal closure, carbohydrate accumulation and changes in leaf elasticity in Phaselous vulgaris leaves 

      Sassi, Sameh; Aydi, Samir; Hessini, Kamel; González García, Esther Upna; Arrese-Igor Sánchez, César Upna; Abdelly, Chedly (Academic Journals, 2010)   Artículo / Artikulua  OpenAccess
      The effect of long-term osmotic stress was investigated in leaves of two common bean lines, with contrasting tolerance: Flamingo (tolerant) and coco blanc (sensitive). Water relations, organic solute, ion accumulation ...
    • Más allá de los modelos de crecimiento: modelos ecológicos híbridos en el contexto del manejo forestal sostenible 

      Blanco Vaca, Juan Antonio Upna (Sociedad Española de Ciencias Forestales, 2012)   Artículo / Artikulua  OpenAccess
      El desafío actual en el manejo forestal es la planificación de suministros sostenibles de madera y otros valores forestales, a la vez que se preserva la integridad del ecosistema forestal. En conse- cuencia, el uso de ...
    • Meat waste as feedstock for home composting: effects on the process and quality of compost 

      Storino, Francesco Upna; Sánchez Arizmendiarrieta, Joseba; Irigoyen Iriarte, Ignacio Upna; Muro Erreguerena, Julio Upna; Aparicio Tejo, Pedro María Upna (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      Home composting is a powerful tool, which is spreading in different parts of the world, to reduce the generation of municipal waste. However, there is debate concerning the appropriateness, in terms of domestic hygiene and ...
    • Modelling the management of forest ecosystems: importance of wood decomposition 

      Blanco Vaca, Juan Antonio Upna; Page-Dumroese, Deborah S.; Jurgensen, Martin F.; Curran, Michale P.; Tirocke, Joanne M.; Walitalo, Joanna (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      Scarce and uncertain data on woody debris decomposition rates are available for calibrating forest ecosystem models, owing to the difficulty of their empirical estimations. Using field data from three experimental sites which ...
    • Modelos ecológicos: descripción, explicación y predición 

      Blanco Vaca, Juan Antonio Upna (Asociación Española de Ecología Terrestre, 2013)   Artículo / Artikulua  OpenAccess
      Los ecosistemas son, por definición, complejos sistemas en los que factores biológicos, climáticos y geológicos se combinan con factores sociales, políticos y económicos para producir una serie de procesos ambientales que ...