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  • Rural Digital Europe
  • 2014-2023
  • Other research products
  • CemOA
  • Repositori Institucional URV

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Andrade, Edilene Pereira; Bonmati, August; Esteller, Laureano Jimenez; Vallejo, Assumpcio Anton;
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Repositori Instituci...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Repositori Instituci...arrow_drop_down
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    Authors: Roussey, C.; Bernard, S.;

    / SKOS est un schéma RDF utilisé pour stocker et publier sur le web de données liées des thésaurus ou des taxonomies. Lors du développement d'un thésaurus, il est utile de détecter automatiquement les concepts qui violent les contraintes d'intégrité. Cet article présente le cas d'usage d'un développement manuel d'un thésaurus monolingue. Ce thésaurus porte sur l'usage des cultures en France. Dans cet article, nous avons spécifié diverses contraintes d'intégrité. Pour vérifier ces contraintes un ensemble de requêtes SPARQL a été défini. Ces requêtes permettent à la fois de vérifier des contraintes d'intégrité propres à tous les thésaurus stockés au format SKOS, mais aussi des contraintes propres à notre thésaurus.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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    CemOA
    2017
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      CemOA
      2017
      Data sources: CemOA
  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Verger, E.O.; Perignon, M.; El Ati, J.; Darmmon, N.; +6 Authors

    Mediterranean countries are undergoing dietary and nutritional changes that affect their inhabitants' health, while facing massive environmental challenges. The increasing demand of water in agriculture, the capacity to maintain local food production, and the growing dependence on food imports are interconnected issues that must be addressed to ensure food security and nutrition in the Mediterranean region. Here, we present the conceptual framework and methodologies developed by the MEDINA-Study Group for rethinking food systems toward sustainable consumption and production modes. Based on its multidisciplinary expertise, the MEDINA-Study Group designed a "fork-to-farm" multi-scale approach, stemming from current dietary habits and examining how some options to nutritionally improve these habitsmight affect the food systems. This approach was developed for research activities in the South of France and Tunisia, two areas with very different diet-agriculture-environment nexus. The conceptual framework is based on the analysis of elements of the food systems (from consumption to production) at different levels (individual, household, regional and national levels). The methods include: (i) modeling options of dietary changes at different scales, in order to nutritionally optimize food consumption-production without increasing the environmental impact, (ii) translating the best-choice changes into possible policy actions, (iii) testing the acceptability and feasibility of these actions with several stakeholders, and (iv) producing guidelines for sustainable food choices and production. The MEDINA-Study Group identified additional issues that could be included in a future framework to help designing ambitious agricultural, food and health policies in the Mediterranean region.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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    CemOA
    2018
    Data sources: CemOA
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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      CemOA
      2018
      Data sources: CemOA
  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Jay, S.; Gorretta, N.; Morel, J.; Maupas, F.; +5 Authors

    Accurate estimation of leaf chlorophyll content (Cab) from remote sensing is of tremendous significance to monitor the physiological status of vegetation or to estimate primary production. Many vegetation indices (VIs) have been developed to retrieve Cab at the canopy level from meter- to decameter-scale reflectance observations. However, most of these VIs may be affected by the possible confounding influence of canopy structure. The objective of this study is to develop methods for Cab estimation using millimeter to centimeter spatial resolution reflectance imagery acquired at the field level. Hyperspectral images were acquired over sugar beet canopies from a ground-based platform in the 400-1000 nm range, concurrently to Cab, green fraction (GF), green area index (GAI) ground measurements. The original image spatial resolution was successively degraded from 1 mm to 35 cm, resulting in eleven sets of hyperspectral images. Vegetation and soil pixels were discriminated, and for each spatial resolution, measured Cab values were related to various VIs computed over four sets of reflectance spectra extracted from the images (soil and vegetation pixels, only vegetation pixels, 50% darkest and brightest vegetation pixels). The selected VIs included some classical VIs from the literature as well as optimal combinations of spectral bands, including simple ratio (SR), modified normalized difference (mND) and structure insensitive pigment index (SIPI). In the case of mND and SIPI, the use of a blue reference band instead of the classical near-infrared one was also investigated. For the eleven spatial resolutions, the four pixel selections and the five VI formats, similar band combinations are obtained when optimizing VI performances: the main bands of interest are generally located in the blue, red, red edge and near-infrared domains. Overall,mNDblue[728,850] defined as (R440

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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    CemOA
    2017
    Data sources: CemOA
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      CemOA
      2017
      Data sources: CemOA
  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Andrade EP; Bonmati A; Esteller LJ; Brunn S; +3 Authors

    The adverse effects of agriculture and livestock production on the environment are well-known and require mitigation in order to achieve sustainability in the food production chain. This study focused on adverse effects related to biogeochemical flows of phosphorus and nitrogen cycles which natural balances have been greatly disturbed by current practices. To assess the potential benefits and detrimental effects of proposed mitigation measures, adequate impact indicators are required. The challenge lies in identifying and providing indicators that cover the important aspects of environmental sustainability and allow a direct comparison of policy alternatives. A review of potential indicators that are also consistent with those used to indicate the performance of agricultural and general sustainability (i.e. the European Green Deal) led to the selection of fifteen agri-environmental indicators covering the main environmental issues in agriculture. The indicators identified offered an effective representation of environmental behaviour and would be useful in communicating a comprehensive ‘dashboard’ for professional end users of solutions to nutrient recovery and nutrient efficiency improvement in arable and livestock systems. The selected dashboard indicators (DBI) covered the dimensions of ‘use of primary resources’, ‘emissions to the environment’ and ‘resilience to climate change’. Five case studies were investigated to test the DBI using an Excel questionnaire applying the qualitative approach of the Delphi method together with expert knowledge. As expected, the results indicated that there were potential benefits of the technologies in terms of improved ‘nutrient recovery’ and decreased ‘nitrate leaching’. Potential disadvantages included increased electricity and oi

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Repositori Instituci...arrow_drop_down
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    Authors: Biancamaria, S.; Mballo, M.; Le Moigne, P.; Sánchez Pérez, J.M.; +9 Authors

    Study Region Garonne Basin, France. Study Focus This study analyses water mass variations for the whole Garonne basin (50,000 km2 drainage area). To do so, Total Water Storage Anomalies (TWSA) from seven global solutions based on the Gravity Recovery And Climate Experiment (GRACE) satellite mission measurements (˜300 km spatial resolution) are inter-compared with TWSA from two hydrological models, SAFRAN-ISBA-MODCOU (SIM) and Soil and Water Assessment Tool (SWAT), between January 2003 and December 2010. New Hydrological Insights for the Region Despite the small size of the Garonne basin compared to GRACE spatial resolution, good agreement between GRACE solutions and hydrological model TWSA has been found (maximum correlation coefficient ˜0.9 and Nash-Sutcliffe Efficiency, NSE, ˜0.7). These datasets showed that TWSA in the Garonne basin is mainly due to water stored in the first dozen meters of soil and in the shallow aquifer. To a smaller extent, snow also influences Garonne TWSA. Open surface water TWSA is quite small and TWSA from deep aquifer is negligible. The most important drought period occurred in 2011/2012, due to low precipitation during the two hydrological years and ETR close to previous years. Important precipitation in 2013/2014 helps to refill the water stocks. This study also showed that GRACE and models mismatches should be due to GRACE poor spatial resolution, but also to its monthly time resolution (rarely shown in previous studies).

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    CemOA
    2019
    Data sources: CemOA
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      CemOA
      2019
      Data sources: CemOA
  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Reza Mirsoleimani, H.; Reza Sahebi, M.; Baghdadi, N.; El Hajj, M.;

    The main purpose of this study is to investigate the performance of two radar backscattering models; the calibrated integral equation model (CIEM) and the modified Dubois model (MDB) over an agricultural area in Karaj, Iran. In the first part, the performance of the models is evaluated based on the field measurement and the mentioned backscattering models, CIEM and MDB performed with root mean square error (RMSE) of 0.78 dB and 1.45 dB, respectively. In the second step, based on the neural networks (NNS), soil surface moisture is estimated using the two backscattering models, based on neural networks (NNs), from single polarization Sentinel-1 images over bare soils. The inversion results show the efficiency of the single polarized data for retrieving soil surface moisture, especially for VV polarization.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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    CemOA
    2019
    Data sources: CemOA
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ CemOAarrow_drop_down
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      CemOA
      2019
      Data sources: CemOA
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    Authors: Castelló, Enric;

    This article discusses the concept of terroir in the light of the communication practices. It provides a literature review illustrated with a case observation. The author identifies three key stages in the constitution of the terroir through communication: organizational norms and interaction; the circulation of public relations, marketing and media messages, and promotion; and a meaningful consumer experience that closes the circle of a terroir-based storytelling. Here, communication processes play a leading role, which includes the agency of diverse stakeholders. The author argues that, among these stakeholders, geographical indication (GI) organizations are leading agents that build symbolic terroir practices. One of the text's principal theses is that terroir is a socio-cultural construction embedded in storytelling practices with a broad scientific, economic, social and cultural exchange. For this terroir to exist, there must be a collective will, driven by the interests of a wide range of stakeholders such as policymakers, local communities, vine growers, winemakers, marketers and consumers. The practice of defining, communicating and circulating this storytelling is what finally transfers agency to the narrative itself in what the author refers to as the will for terroir. The article illustrates the process with a case study of a wine GI in Catalonia (Spain) and discusses how the will for terroir is relevant at each stage.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Recolector de Cienci...arrow_drop_down
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    Authors: Alavoine-Mornas, F.;

    In the Provence Alpes Côte d'Azur region (France), some forest lands are converted to agricultural use, in particular in the wine-growing sector. In this region agricultural lands have to cope with urbanization and agricultural land abandonment. But this trend raises the question of natural and forest lands preservation. The issue is also to understand the conditions of these changes in land use. We carried out an exploratory study in order to quantify this evolution and provide information on the agriculture and forest stakes. This work was based on a bibliographic study and some interviews among local stakeholders. We also conducted a more precise study in the Var department using the CRIGE-PACA database to quantify the changes in land use regarding vineyards and forests (conversion of forest land to vineyards and vice-versa) between 2006 and 2014. We showed that the surfaces of forest lands to vineyards was very small. The requests for authorization to clear forest land often concerned plots which were formerly cultivated. However the context could accelerate this process, especially due to outside investors entering the wine-growing sector as well as the surface growth of som AOC/AOP, and the strong willingness of agricultural organizations to develop the wine-growing sector and more widely the agricultural sector. A more comprehensive study will be needed using spatial data to locate the impacted territories and assess the possible effects on forests. / En région Provence-Alpes-Côte d'Azur (France), des terres sont récupérées sur des espaces forestiers par des agriculteurs, particulièrement dans le secteur viticole. Dans une région où les espaces agricoles peinent à se maintenir face au développement urbain et à la déprise, cette tendance pose cependant la question de la préservation des espaces naturels et forestiers et des conditions dans lesquelles s'effectuent ces changements d'occupation du sol (lieu, superficie et types de forêts concernées, projets de valorisation de ces espaces...). Nous avons réalisé une étude exploratoire visant à quantifier cette évolution et à en préciser les enjeux pour l'agriculture et pour les espaces forestiers. Ce travail a été conduit à partir de la bibliographie existante et d'entretiens avec quelques acteurs du territoire. Un travail plus précis a été réalisé sur le département du Var, pour lequel nous avons utilisé des bases de données du CRIGE-PACA pour quantifier les transformations d'occupation du sol concernant la viticulture et la forêt (transformation de forêts en vignobles, et vice versa) entre 2006 et 2014. Les analyses montrent que les superficies de forêts converties en vignobles aux dépens d'espaces forestiers ont été très limitées au cours de la période étudiée. Les demandes de défrichement concernent souvent des parcelles anciennement cultivées. Cependant certains éléments de contexte pourraient conduire à une accélération de cette tendance, notamment l'entrée d'investisseurs extérieurs au secteur viticole apportant des capitaux importants et souhaitant les valoriser, l'extension des aires d'appellations de certaines AOC/AOP, et la volonté affirmée des organisations professionnelles agricoles de développer le secteur viticole provençal et plus largement l'agriculture. Le travail réalisé devra être poursuivi par des études spatialisées permettant de localiser les territoires impactés (ou pouvant être impactés) par cette tendance et d'évaluer les effets possibles sur les forêts concernées.

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    CemOA
    2019
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      CemOA
      2019
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    Authors: Morardet, S.; Loubier, S.; Fusillier, J.L.; Ruelle, P.; +2 Authors

    This report presents a method for assessing economic impacts of available water resources for irrigation at farm, food processing sector and territory levels. It is mainly based on the example of the study commissioned by the Direction Régionale de l'Agriculture, de l'Alimentation et de la Forêt de la région Rhône Alpes in Drôme des collines , while comparing it with similar studies conducted in other regions in France. / Ce rapport présente une méthode d'évaluation des impacts économiques de la réduction des volumes disponibles pour l'irrigation à l'échelle des exploitations agricoles, des filières et du territoire irrigué. Il s'appuie notamment sur l'exemple de l'étude réalisée en Drôme des collines à la demande de la Direction Régionale de l'Agriculture, de l'Alimentation et de la Forêt de la région Rhône Alpes, en le mettant en perspective avec des études similaires menées dans d'autres régions.

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    CemOA
    2014
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      CemOA
      2014
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: Andrade, Edilene Pereira; Bonmati, August; Esteller, Laureano Jimenez; Vallejo, Assumpcio Anton;
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    Authors: Roussey, C.; Bernard, S.;

    / SKOS est un schéma RDF utilisé pour stocker et publier sur le web de données liées des thésaurus ou des taxonomies. Lors du développement d'un thésaurus, il est utile de détecter automatiquement les concepts qui violent les contraintes d'intégrité. Cet article présente le cas d'usage d'un développement manuel d'un thésaurus monolingue. Ce thésaurus porte sur l'usage des cultures en France. Dans cet article, nous avons spécifié diverses contraintes d'intégrité. Pour vérifier ces contraintes un ensemble de requêtes SPARQL a été défini. Ces requêtes permettent à la fois de vérifier des contraintes d'intégrité propres à tous les thésaurus stockés au format SKOS, mais aussi des contraintes propres à notre thésaurus.

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    CemOA
    2017
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      CemOA
      2017
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    Authors: Verger, E.O.; Perignon, M.; El Ati, J.; Darmmon, N.; +6 Authors

    Mediterranean countries are undergoing dietary and nutritional changes that affect their inhabitants' health, while facing massive environmental challenges. The increasing demand of water in agriculture, the capacity to maintain local food production, and the growing dependence on food imports are interconnected issues that must be addressed to ensure food security and nutrition in the Mediterranean region. Here, we present the conceptual framework and methodologies developed by the MEDINA-Study Group for rethinking food systems toward sustainable consumption and production modes. Based on its multidisciplinary expertise, the MEDINA-Study Group designed a "fork-to-farm" multi-scale approach, stemming from current dietary habits and examining how some options to nutritionally improve these habitsmight affect the food systems. This approach was developed for research activities in the South of France and Tunisia, two areas with very different diet-agriculture-environment nexus. The conceptual framework is based on the analysis of elements of the food systems (from consumption to production) at different levels (individual, household, regional and national levels). The methods include: (i) modeling options of dietary changes at different scales, in order to nutritionally optimize food consumption-production without increasing the environmental impact, (ii) translating the best-choice changes into possible policy actions, (iii) testing the acceptability and feasibility of these actions with several stakeholders, and (iv) producing guidelines for sustainable food choices and production. The MEDINA-Study Group identified additional issues that could be included in a future framework to help designing ambitious agricultural, food and health policies in the Mediterranean region.

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    CemOA
    2018
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      CemOA
      2018
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    Authors: Jay, S.; Gorretta, N.; Morel, J.; Maupas, F.; +5 Authors

    Accurate estimation of leaf chlorophyll content (Cab) from remote sensing is of tremendous significance to monitor the physiological status of vegetation or to estimate primary production. Many vegetation indices (VIs) have been developed to retrieve Cab at the canopy level from meter- to decameter-scale reflectance observations. However, most of these VIs may be affected by the possible confounding influence of canopy structure. The objective of this study is to develop methods for Cab estimation using millimeter to centimeter spatial resolution reflectance imagery acquired at the field level. Hyperspectral images were acquired over sugar beet canopies from a ground-based platform in the 400-1000 nm range, concurrently to Cab, green fraction (GF), green area index (GAI) ground measurements. The original image spatial resolution was successively degraded from 1 mm to 35 cm, resulting in eleven sets of hyperspectral images. Vegetation and soil pixels were discriminated, and for each spatial resolution, measured Cab values were related to various VIs computed over four sets of reflectance spectra extracted from the images (soil and vegetation pixels, only vegetation pixels, 50% darkest and brightest vegetation pixels). The selected VIs included some classical VIs from the literature as well as optimal combinations of spectral bands, including simple ratio (SR), modified normalized difference (mND) and structure insensitive pigment index (SIPI). In the case of mND and SIPI, the use of a blue reference band instead of the classical near-infrared one was also investigated. For the eleven spatial resolutions, the four pixel selections and the five VI formats, similar band combinations are obtained when optimizing VI performances: the main bands of interest are generally located in the blue, red, red edge and near-infrared domains. Overall,mNDblue[728,850] defined as (R440

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    CemOA
    2017
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      CemOA
      2017
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    Authors: Andrade EP; Bonmati A; Esteller LJ; Brunn S; +3 Authors

    The adverse effects of agriculture and livestock production on the environment are well-known and require mitigation in order to achieve sustainability in the food production chain. This study focused on adverse effects related to biogeochemical flows of phosphorus and nitrogen cycles which natural balances have been greatly disturbed by current practices. To assess the potential benefits and detrimental effects of proposed mitigation measures, adequate impact indicators are required. The challenge lies in identifying and providing indicators that cover the important aspects of environmental sustainability and allow a direct comparison of policy alternatives. A review of potential indicators that are also consistent with those used to indicate the performance of agricultural and general sustainability (i.e. the European Green Deal) led to the selection of fifteen agri-environmental indicators covering the main environmental issues in agriculture. The indicators identified offered an effective representation of environmental behaviour and would be useful in communicating a comprehensive ‘dashboard’ for professional end users of solutions to nutrient recovery and nutrient efficiency improvement in arable and livestock systems. The selected dashboard indicators (DBI) covered the dimensions of ‘use of primary resources’, ‘emissions to the environment’ and ‘resilience to climate change’. Five case studies were investigated to test the DBI using an Excel questionnaire applying the qualitative approach of the Delphi method together with expert knowledge. As expected, the results indicated that there were potential benefits of the technologies in terms of improved ‘nutrient recovery’ and decreased ‘nitrate leaching’. Potential disadvantages included increased electricity and oi

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    Authors: Biancamaria, S.; Mballo, M.; Le Moigne, P.; Sánchez Pérez, J.M.; +9 Authors

    Study Region Garonne Basin, France. Study Focus This study analyses water mass variations for the whole Garonne basin (50,000 km2 drainage area). To do so, Total Water Storage Anomalies (TWSA) from seven global solutions based on the Gravity Recovery And Climate Experiment (GRACE) satellite mission measurements (˜300 km spatial resolution) are inter-compared with TWSA from two hydrological models, SAFRAN-ISBA-MODCOU (SIM) and Soil and Water Assessment Tool (SWAT), between January 2003 and December 2010. New Hydrological Insights for the Region Despite the small size of the Garonne basin compared to GRACE spatial resolution, good agreement between GRACE solutions and hydrological model TWSA has been found (maximum correlation coefficient ˜0.9 and Nash-Sutcliffe Efficiency, NSE, ˜0.7). These datasets showed that TWSA in the Garonne basin is mainly due to water stored in the first dozen meters of soil and in the shallow aquifer. To a smaller extent, snow also influences Garonne TWSA. Open surface water TWSA is quite small and TWSA from deep aquifer is negligible. The most important drought period occurred in 2011/2012, due to low precipitation during the two hydrological years and ETR close to previous years. Important precipitation in 2013/2014 helps to refill the water stocks. This study also showed that GRACE and models mismatches should be due to GRACE poor spatial resolution, but also to its monthly time resolution (rarely shown in previous studies).

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    CemOA
    2019
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      CemOA
      2019
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    Authors: Reza Mirsoleimani, H.; Reza Sahebi, M.; Baghdadi, N.; El Hajj, M.;

    The main purpose of this study is to investigate the performance of two radar backscattering models; the calibrated integral equation model (CIEM) and the modified Dubois model (MDB) over an agricultural area in Karaj, Iran. In the first part, the performance of the models is evaluated based on the field measurement and the mentioned backscattering models, CIEM and MDB performed with root mean square error (RMSE) of 0.78 dB and 1.45 dB, respectively. In the second step, based on the neural networks (NNS), soil surface moisture is estimated using the two backscattering models, based on neural networks (NNs), from single polarization Sentinel-1 images over bare soils. The inversion results show the efficiency of the single polarized data for retrieving soil surface moisture, especially for VV polarization.

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    CemOA
    2019
    Data sources: CemOA
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      CemOA
      2019
      Data sources: CemOA
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    Authors: Castelló, Enric;

    This article discusses the concept of terroir in the light of the communication practices. It provides a literature review illustrated with a case observation. The author identifies three key stages in the constitution of the terroir through communication: organizational norms and interaction; the circulation of public relations, marketing and media messages, and promotion; and a meaningful consumer experience that closes the circle of a terroir-based storytelling. Here, communication processes play a leading role, which includes the agency of diverse stakeholders. The author argues that, among these stakeholders, geographical indication (GI) organizations are leading agents that build symbolic terroir practices. One of the text's principal theses is that terroir is a socio-cultural construction embedded in storytelling practices with a broad scientific, economic, social and cultural exchange. For this terroir to exist, there must be a collective will, driven by the interests of a wide range of stakeholders such as policymakers, local communities, vine growers, winemakers, marketers and consumers. The practice of defining, communicating and circulating this storytelling is what finally transfers agency to the narrative itself in what the author refers to as the will for terroir. The article illustrates the process with a case study of a wine GI in Catalonia (Spain) and discusses how the will for terroir is relevant at each stage.

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    Authors: Alavoine-Mornas, F.;

    In the Provence Alpes Côte d'Azur region (France), some forest lands are converted to agricultural use, in particular in the wine-growing sector. In this region agricultural lands have to cope with urbanization and agricultural land abandonment. But this trend raises the question of natural and forest lands preservation. The issue is also to understand the conditions of these changes in land use. We carried out an exploratory study in order to quantify this evolution and provide information on the agriculture and forest stakes. This work was based on a bibliographic study and some interviews among local stakeholders. We also conducted a more precise study in the Var department using the CRIGE-PACA database to quantify the changes in land use regarding vineyards and forests (conversion of forest land to vineyards and vice-versa) between 2006 and 2014. We showed that the surfaces of forest lands to vineyards was very small. The requests for authorization to clear forest land often concerned plots which were formerly cultivated. However the context could accelerate this process, especially due to outside investors entering the wine-growing sector as well as the surface growth of som AOC/AOP, and the strong willingness of agricultural organizations to develop the wine-growing sector and more widely the agricultural sector. A more comprehensive study will be needed using spatial data to locate the impacted territories and assess the possible effects on forests. / En région Provence-Alpes-Côte d'Azur (France), des terres sont récupérées sur des espaces forestiers par des agriculteurs, particulièrement dans le secteur viticole. Dans une région où les espaces agricoles peinent à se maintenir face au développement urbain et à la déprise, cette tendance pose cependant la question de la préservation des espaces naturels et forestiers et des conditions dans lesquelles s'effectuent ces changements d'occupation du sol (lieu, superficie et types de forêts concernées, projets de valorisation de ces espaces...). Nous avons réalisé une étude exploratoire visant à quantifier cette évolution et à en préciser les enjeux pour l'agriculture et pour les espaces forestiers. Ce travail a été conduit à partir de la bibliographie existante et d'entretiens avec quelques acteurs du territoire. Un travail plus précis a été réalisé sur le département du Var, pour lequel nous avons utilisé des bases de données du CRIGE-PACA pour quantifier les transformations d'occupation du sol concernant la viticulture et la forêt (transformation de forêts en vignobles, et vice versa) entre 2006 et 2014. Les analyses montrent que les superficies de forêts converties en vignobles aux dépens d'espaces forestiers ont été très limitées au cours de la période étudiée. Les demandes de défrichement concernent souvent des parcelles anciennement cultivées. Cependant certains éléments de contexte pourraient conduire à une accélération de cette tendance, notamment l'entrée d'investisseurs extérieurs au secteur viticole apportant des capitaux importants et souhaitant les valoriser, l'extension des aires d'appellations de certaines AOC/AOP, et la volonté affirmée des organisations professionnelles agricoles de développer le secteur viticole provençal et plus largement l'agriculture. Le travail réalisé devra être poursuivi par des études spatialisées permettant de localiser les territoires impactés (ou pouvant être impactés) par cette tendance et d'évaluer les effets possibles sur les forêts concernées.

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    CemOA
    2019
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      CemOA
      2019
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    Authors: Morardet, S.; Loubier, S.; Fusillier, J.L.; Ruelle, P.; +2 Authors

    This report presents a method for assessing economic impacts of available water resources for irrigation at farm, food processing sector and territory levels. It is mainly based on the example of the study commissioned by the Direction Régionale de l'Agriculture, de l'Alimentation et de la Forêt de la région Rhône Alpes in Drôme des collines , while comparing it with similar studies conducted in other regions in France. / Ce rapport présente une méthode d'évaluation des impacts économiques de la réduction des volumes disponibles pour l'irrigation à l'échelle des exploitations agricoles, des filières et du territoire irrigué. Il s'appuie notamment sur l'exemple de l'étude réalisée en Drôme des collines à la demande de la Direction Régionale de l'Agriculture, de l'Alimentation et de la Forêt de la région Rhône Alpes, en le mettant en perspective avec des études similaires menées dans d'autres régions.

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    CemOA
    2014
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      CemOA
      2014
      Data sources: CemOA