Literatura científica selecionada sobre o tema "Vie végétale"
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Artigos de revistas sobre o assunto "Vie végétale"
Mekideche, Siham, Lila Brakchi-Ouakour e Leila Kadik. "Impact des perturbations anthropiques sur la diversité végétale de la subéraie de Chréa, au nord de l’Algérie". BOIS & FORETS DES TROPIQUES 337 (26 de novembro de 2018): 53. http://dx.doi.org/10.19182/bft2018.337.a31633.
Texto completo da fonteGAUTIER, F., e E. LABUSSIÈRE. "Origines alimentaires et digestion des nutriments chez le veau préruminant". INRAE Productions Animales 24, n.º 3 (7 de julho de 2011): 245–58. http://dx.doi.org/10.20870/productions-animales.2011.24.3.3259.
Texto completo da fonteCASTILLON, P. "Le phosphore : sources, flux et rôles pour la production végétale et l’eutrophisation". INRAE Productions Animales 18, n.º 3 (15 de julho de 2005): 153–58. http://dx.doi.org/10.20870/productions-animales.2005.18.3.3519.
Texto completo da fonteKallhoff, Angela. "Le concept d’intégrité dans l’éthique de la nature. Une discussion à partir de l’exemple de la vie végétale". La Pensée écologique N° 9, n.º 2 (19 de janeiro de 2023): 59–68. http://dx.doi.org/10.3917/lpe.009.0059.
Texto completo da fonteMonties, Bernard. "Composition chimique des bois de chêne: composés phénoliques, relations avec quelques propriétés physiques et chimiques susceptibles d'influencer la qualité des vins et des eaux-de-vie". OENO One 21, n.º 3 (30 de setembro de 1987): 169. http://dx.doi.org/10.20870/oeno-one.1987.21.3.1282.
Texto completo da fonteMikoungui Gomo, Mat-Sheridan, Donatien N’zala e Saint Fédriche Ndzai. "Diversité floristique des dépendances vertes périurbaines de Brazzaville (Congo) menacées de dégradation". International Journal of Biological and Chemical Sciences 14, n.º 7 (7 de dezembro de 2020): 2567–82. http://dx.doi.org/10.4314/ijbcs.v14i7.16.
Texto completo da fonteSalazar-Diaz, Ricardo. "Effet de la diversité végétale sur la productivité des systèmes de culture multi-espèces : une étude de cas sur les systèmes agroforestiers à Talamanca, Costa Rica". BOIS & FORETS DES TROPIQUES 336 (6 de setembro de 2018): 71. http://dx.doi.org/10.19182/bft2018.336.a31617.
Texto completo da fonteAcherkouk, Mohamed, Abdesselam Maatougui e Mohamed Aziz El Houmaiz. "Communautés végétales et faciès pastoraux dans la zone de Taourirt-Tafoughalt du Maroc oriental: écologie et inventaire floristique. Vegetation and pasturelands in Taourirt-Tafoughalt (Eastern Morocco): ecology and flora". Acta Botanica Malacitana 36 (1 de dezembro de 2011): 125–36. http://dx.doi.org/10.24310/abm.v36i1.2773.
Texto completo da fonteDjangbedja, Minkilabe. "Impact de l’âge d’abandon sur les caractéristiques floristiques dans les carrières de phosphates au sud-est du Togo". International Journal of Biological and Chemical Sciences 16, n.º 1 (8 de junho de 2022): 272–85. http://dx.doi.org/10.4314/ijbcs.v16i1.23.
Texto completo da fonteComeau, André, François Langevin e Marcel Lévesque. "La santé des racines : le monde de la complexité". Conférences [Symposium : Santé des racines, santé des plantes. Société de protection des plantes du Québec. 97e Assemblée annuelle (2005) Gatineau (Québec), 9 et 10 juin 2005] 86, n.º 1 (15 de novembro de 2005): 43–52. http://dx.doi.org/10.7202/011714ar.
Texto completo da fonteTeses / dissertações sobre o assunto "Vie végétale"
Kazakou, Elena. "Vie, mort et décomposition des feuilles d'espèces de succession secondaire méditerranéenne : vers une intégration de la gestion des éléments minéraux par les végétaux". Montpellier 2, 2006. http://www.theses.fr/2006MON20041.
Texto completo da fonteThe main aim of this work is to determine the links between the processes occurring before, during and after leaf senescence. Two experiments were set up: one in a gradient of an old-field succession and a second one in a common garden experiment, where 18 species characterising the three stages of this succession were transplanted in two fertilisation levels. Our results demonstrate that leaf life span and nutrient resorption efficiency are two important and alternative strategies of nutrient conservation. Litter decomposability is successfully predicted by some traits of green leaves, especially those describing leaf robustness (leaf dry matter content, leaf tensile strength and leaf resistance to fracture). The leaf economic spectrum describing nutrient use in plants was found across species differing in successional stage. Species from early succession with high resource acquisition rates are replaced during succession by species which tend to conserve resources efficiently, the latter tending to produce leaves with low decomposition rates. Finally, in order to scale up from species to the ecosystem functioning, we propose to use leaf dry matter content as a functional marker of litter decomposability
Breton, Audrey. "Potentialité de la biomasse végétale pour le traitement des eaux usées domestiques : développement d’un procédé de biofiltration pour l’assainissement non collectif". Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0082.
Texto completo da fonteIn France, 13 million people are concerned by on-site wastewater treatment (OSWWT). An OSWWT system consists of pretreatment, usually a septic tank, followed by a treatment system. Recent regulatory developments open up a range of possibilities as to possible treatment systems for wastewater treatment. The objective of this thesis is to develop a system of wastewater treatment based on plant biomass from waste of agriculture. Analytical monitoring of six individual houses allowed the study of the characteristics of the wastewater before and after their entry into the pretreatment system. Waters are characterized by a wide variability from one family to another and from the same house. The organic load per person is treating an average of 60 gDBO5.j-1 for a volume of water discharged 90 L.j-1, that to say effluent two times more concentrated than indicated by the regulations. The design and monitoring of a pilot scale laboratory were used to evaluate the potential of several plant biomass for the treatment of pretreated wastewater. They are compared to a reference medium with proven effectiveness in water treatment. The study of treatment performance for two different volume loads of different backgrounds was performed during forty weeks. This study resulted in the development and implementation of a pilot in situ for single house. The approach of life cycle analysis has been applied to in situ pilot in order to optimize the process in place. In addition, LCA has to make a comparison with different existing OSWWT
Chateau, Sophie. "Les marqueurs de la compétence cellulaire à la transformation génétique via agrobacterium tumefaciens, chez les plantes modèles petunia hybrida L. Et arabidopsis thaliana L". Amiens, 2000. http://www.theses.fr/2000AMIE0105.
Texto completo da fonteFaivre, Nicolas. "Quelle pyrodiversité pour quelle biodiversité ? Une étude comparative multi-échelle de deux écosystèmes méditerranéens". Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX30013.
Texto completo da fonteAim and Background. Fire is an integral component of Mediterranean type ecosystems and other fire-prone systems worldwide but the perception of fire as an ecological disaster remains a widely-held view among human societies. Understanding whether and to what extent fire is beneficial or detrimental to biodiversity is a current research priority for conservation management in fire-prone systems. My research has attempted to quantify the multi-scale effects of fire on various facets of vegetation diversity, including landscape diversity, taxonomic diversity and functional diversity from a landscape ecology perspective. We used two contrasted Mediterranean study cases i.e., south-eastern France and south-western Australia in order to distinguish from their differences common ecological patterns.Methods. Fires and their effects on vegetation are normally studied as single and localized events. Here, we considered landscape-scale fire mosaics resulting from the compilation of fire events that occurred among time and space in a given landscape. The diversity of those fire mosaics has been quantified and permitted to define a new parameter i.e., pyrodiversity. This research proposes a conceptual and practical methodology for the objective characterization of pyrodiversity based on the comparison of two Mediterranean environments: south-west of Western Australia and southern France. Fire patterns were analyzed retrospectively over a 50-year period while vegetation, habitats and species diversity were quantified at the landscape scale using a monitoring protocol developed within the EBONE EU-project. Using the same geographical scale for fire and vegetation patterns permitted to cross the information on biodiversity and pyrodiversity. The relationship between pyrodiversity and biodiversity was examined at the community level (i.e., habitat) and landscape level (mosaic of habitats) with considering successively habitat diversity, taxonomic diversity and functional diversity.ResultsThis study provides evidence that high pyrodiversity (i.e., spatio-temporal diversity of fire patterns) is associated to various successional trajectories of vegetation and thereby maximizes the diversity of habitats at landscape scale. The results indicate that fire significantly contributes with environmental factors and land management to determine the composition of habitats across a landscape and spatial heterogeneity of landscape mosaics. Whether considering the effects of a single fire event on plant species or on plant functional traits, I found that plant diversity varies with fire frequency according to the intermediate disturbance hypothesis at the habitat level. At the landscape level, the pyrodiversity-biodiversity relationship verified the heterogeneous disturbance hypothesis i.e., maxima of alpha and beta diversity are associated to fire mosaics of high spatiotemporal heterogeneity. At the regional scale, pyrodiversity enhances habitat diversity (gamma diversity) within the landscape until a certain threshold. The two studies areas display contrasting profiles of pyrodiversity due to their different fire management strategies but also exhibit taxonomically unrelated floras. Hence, the two Mediterranean biomes were characterized by different ecosystem resilience and resistance to fire. Despite these differences, the two Mediterranean biomes show convergence trends in their ecological response to the gradient of pyrodiversity.Conclusion. This study tackled the Pyrodiversity-Biodiversity paradigm and demonstrated that Mediterranean-type ecosystems need pyrodiversity to maintain the variety of habitats and species at both habitat and landscape levels. Fire effects on vegetation cannot be interpreted directly from a local perspective with considering a single fire event
Hoare, Catherine. "Les Végétaux dans la vie du peuple WE (Côte d'Ivoire)". Paris 6, 1988. http://www.theses.fr/1988PA066091.
Texto completo da fonteCapel, Eliott. "La grande révolution terrestre du Silurien-Dévonien : diversité et évolution des premières plantes terrestres". Electronic Thesis or Diss., Université de Lille (2022-....), 2022. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2022/2022ULILR059.pdf.
Texto completo da fontePlants underwent an extensive Silurian-Devonian diversification during their progressive colonization of terrestrial surfaces (440-360 Ma). Nonetheless, the tempo and mode of this radiation remains controversial, and drivers of diversity have yet to be clearly identified. This thesis, through a series of newly-compiled datasets of plant macrofossils, and via a wide array of quantitative methods, characterizes temporal and spatial dynamics. It further evaluates the biases that may alter our perception of this landmark event. Firstly, a four-factor model was found adequate to describe the underlying structure of early vegetation dynamics. The pattern suggests ecological shifts during transitions phases, further corroborated through an in-depth characterization of global plant diversity patterns. Nevertheless, the general pattern of Silurian-Devonian plant diversity was found to heavily depend on sampling effort, although several signals of diversification and extinction seemed to be dissociated from it, implying real underlying biological signals. A subsequent continental-scale study further demonstrated that, in addition to sampling heterogeneity, geological incompleteness remained an important element in driving apparent early land plant diversity patterns. This bias is not easily corrected even with the most advanced sampling-standardization methods. Furthermore, paleogeographical discrepancies were assessed to uncover a possible spatial component into early land plant radiation. This led to the discovery of a climatologically-driven plant distribution and dispersion, further enhanced during colder periods. Lastly, this thesis includes a review of an Early Devonian plant fossil assemblage from northern France, providing taxonomically up to date and well-dated occurrences to integrate in future studies
Boulanger, Vincent. "Pression d'herbivorie et dynamique des communautés végétales : Influence à court et moyen termes des populations de cervidés sur la diversité des communautés végétales en forêt". Phd thesis, Nancy 1, 2010. http://tel.archives-ouvertes.fr/tel-00518080.
Texto completo da fonteDelalandre, Léo. "Relations traits-environnement chez les végétaux : du cycle de vie des organismes au cycle de vie des données". Electronic Thesis or Diss., Université de Montpellier (2022-....), 2024. http://www.theses.fr/2024UMONG001.
Texto completo da fonteComparative ecology has highlighted recurring associations between plant functional traits and their environment. These relationships may vary depending on the level of organization considered – within species, between species, and among groups of species – but this dependency remains poorly studied. A fundamental distinction in life history theories is made between annual species (completing their life cycle in one year) and perennial species (life cycle over more than one year, usually with multiple reproductive events). Annual and perennial herbaceous plants differ in their functioning (growth rate, investment in seed production, allocation to roots, etc.). However, despite their frequent coexistence, few studies have considered potential differences in trait-environment relationships between these two groups. The objective of this thesis is to understand the specific variations in the traits of annual plants depending on resource availability, based on in situ measurements and in a common garden setting.We studied herbaceous communities in the Grands Causses, where annuals and perennials coexist in two contrasting environmental conditions: i) fertilization and high disturbance, and ii) poor soil and less intense disturbance. We show that variations in traits related to growth rate and leaf tissue density are lower in annuals than in perennials. This is explained by (a) a higher species turnover in perennials, and (b) the presence of species with larger differences in trait values between environments in perennials. Intraspecific variations are identical between the two groups of species. Measurements made during this first part were used to complete a trait database under development. On this occasion, I contributed to the structuring of this database through data management work, aiming to propose modalities for sharing functional trait data and associated environmental variables; a synthesis of this work is proposed.Secondly, we analyzed intraspecific variability in annuals from these communities, in order to test its origin (genetic or plastic), to identify the most variable traits in response to fertilization, and to compare this variability between species. Thirty populations were grown in a common garden, with low or high fertilization. The results indicate that i) the observed trait variations in situ are likely of plastic origin; ii) plasticity is low in morphological leaf and root traits but high in biomass allocation and nitrogen content; iii) species preferring nutrient-rich environments are more plastic in their nitrogen content.Finally, a literature review was undertaken to determine which traits are determinant for annual and perennial herbaceous plants, reasoning on demographic components (reproduction, growth, survival), the importance of which differs according to the life cycle. We propose an opinion article aiming to better integrate life cycle and commonly measured morpho-physio-phenological traits.This thesis proposes a study of the relationships between functional traits and the environment at different levels of organization: between life cycles, between species, and within species. It highlights that trait-environment relationships can vary between these levels, fitting into a renewed interest in context dependency in comparative ecology
Quinte, Jana. "Cycle de la vie des plantes à fleurs - lebenszyklus der blütenpflanzen : étude comparative des conceptions d'élèves en Alsace et au Baden-Württemberg". Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAG013/document.
Texto completo da fonteThis research aims to investigate students’ conceptions about the life cycle of flowering plants in both Alsace and Baden-Württemberg, in primary and secondary schools, to detect potential factors influencing student’s conceptions and to identify main learning obstacles. Three elements structured this PhD-thesis: 1) an exploratory investigation with the help of interviews (n=49) ; 2) a context analysis of references in natural sciences and in the socio-cultural domain, of “curricula to teach” through school programmes and manuals, and of “taught curricula” ; 3) a main investigation using questionnaires (n=1388). The instruments included questions to key concepts (seed, flower, fruit) and processes (pollination, fecundation, fructification, formation of seeds, dissemination), which characterize the life cycle of flowering plants. Students were especially asked to order different development stages of plants and to explain their ordering. Different mental models could be derived from the results. Moreover, results were related to those of the context analysis. Conceptualizations of the life cycle of plants depend, amongst others, on those of the sexual reproduction and thus the type of plant (flower, fruit tree). Cultural differences were also identified
Schneider, Rémi. "Contribution à la connaissance de l'arôme et du potentiel aromatique du Melon B. (Vitis vinifera L. ) et des vins de Muscadet". Montpellier 2, 2001. http://www.theses.fr/2001MON20156.
Texto completo da fonteLivros sobre o assunto "Vie végétale"
Musée départemental de la Martinique. Le végétal dans la vie des Amérindiens: Juillet-septembre 1994. Fort-de-France: Musée départemental d'archéologie et de préhistoire de la Martinique, 1994.
Encontre o texto completo da fonteLAROUSSE. Encyclopédie des sciences de la nature: La planète bleue, les milieux naturels, la gestion de la nature, l'étude de la vie, l'évolution, les micro-organismes, les végétaux, les animaux. Paris: Larousse, 1995.
Encontre o texto completo da fonteKeith, Lierre. The vegetarian myth: Food, justice and sustainability. Crescent City, Ca: Flashpoint Press, 2009.
Encontre o texto completo da fonteDavet, Philippe. Vie microbienne du sol et production végétale. Inra Editions, 1996.
Encontre o texto completo da fonteQu'est-ce qu'une plante?: Essai sur la vie végétale. Paris XIXe: Éditions du Seuil, 2020.
Encontre o texto completo da fonteAnonyma. Leçons Sur les Phénomènes de la Vie Communs Aux Animaux et Aux Végétaux; Volume 1. Creative Media Partners, LLC, 2023.
Encontre o texto completo da fonteLeçons Sur les Phénomènes de la Vie Communs Aux Animaux et Aux Végétaux; Volume 1. Creative Media Partners, LLC, 2018.
Encontre o texto completo da fonteLatham, Paul, Augustin MbutaKonda ku Mbuta e Jean-Luc Alliez. Plantes utiles du Kongo Central Province, République Démocratique du Congo. University Library J. C. Senckenberg, 2021. http://dx.doi.org/10.21248/gups.61777.
Texto completo da fonteLe Mythe végétarien: Nourriture, justice et pérennité. Les Editions Pilule Rouge, 2013.
Encontre o texto completo da fonteGeflochtenes Süßgras: Die Weisheit der Planzen. 8a ed. Aufbau Verlag, 2021.
Encontre o texto completo da fonteCapítulos de livros sobre o assunto "Vie végétale"
Jacquet, Frédéric. "Chapitre 2 : La vie végétale – Une éclosion aérocosmique". In zeta-esquisses, 172–201. Zeta Books, 2021. http://dx.doi.org/10.5840/zeta-esquisses20217.
Texto completo da fonteBuccheri, Alessandro. "Pour une poétique végétale du traité hippocratique De la génération / De la nature de l’enfant". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 29–55. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51631.
Texto completo da fonteJABBOUR, Florian, e Guilhem MANSION. "Élaboration et évolution des formes végétales". In L’explosion des formes de vie, 107–29. ISTE Group, 2020. http://dx.doi.org/10.51926/iste.9005.ch7.
Texto completo da fonteScaramuzzi, Igor. "Chapitre 15. Modes de vie, création et reproduction des forêts de castanheiras (Haut Trombetas)". In Voix végétales, 253–66. IRD Éditions, 2023. http://dx.doi.org/10.4000/books.irdeditions.49698.
Texto completo da fonteBouby, Laurent. "Chapitre 16. Les semences carbonisées et la perception de l’économie végétale". In Habitats, nécropoles et paysages dans la moyenne et la basse vallée du Rhône (viie-xve s.), 217–39. Éditions de la Maison des sciences de l’homme, 2006. http://dx.doi.org/10.4000/books.editionsmsh.23118.
Texto completo da fonteCarvallo, Sarah, e Arnaud Macé. "La vie et ses analogies : une histoire des discours et des pratiques savants". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 9–29. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51626.
Texto completo da fonteCarvallo, Sarah, e Arnaud Macé. "Auteurs (ordre alphabétique)". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 273–76. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51696.
Texto completo da fonteBertrand, Aliènor. "Les êtres humains au miroir des plantes. Contrepoint". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 245–63. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51681.
Texto completo da fonteMacé, Arnaud. "De l'univers à l'embryon : le végétal comme source d’analogies opératoires chez Anaximandre et dans le traité hippocratique De la génération / De la nature de l’enfant". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 55–75. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51636.
Texto completo da fonteCarvallo, Sarah. "L’homme et la plante dans l’anatomie renaissante". In Analogies végétales dans la connaissance de la vie de l’Antiquité à l’Âge classique, 171–97. Presses universitaires de Franche-Comté, 2023. http://dx.doi.org/10.4000/books.pufc.51666.
Texto completo da fonteTrabalhos de conferências sobre o assunto "Vie végétale"
Ordioni, U., G. Labrosse, F. Campana, R. Lan, J. H. Catherine e A. F. Albertini. "Granulomatose oro-faciale révélatrice d’une maladie de Crohn : présentation d’un cas". In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603017.
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