22 results on '"Wine terroir"'
Search Results
2. Do Consumers Seek Terroir Elements When Choosing a Wine? Insight from Four Generational Cohorts
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Mamalis, Spyridon, Kamenidou, Irene (Eirini), Karampatea, Aikaterini, Bouloumpasi, Elisavet, Skendi, Adriana, Tsounis, Nicholas, editor, and Vlachvei, Aspasia, editor
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- 2024
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3. Exploring Awareness of Greek Protected Geographical Indication Regional Wines and Their Terroir: The Case of the Prefecture of Drama Greece
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Mamalis, Spyridon, Kamenidou, Irene, Karampatea, Aikaterini, Bouloumpasi, Elisavet, Skendi, Adriana, Kavoura, Androniki, editor, Borges-Tiago, Teresa, editor, and Tiago, Flavio, editor
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- 2024
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4. Religious tourism and life satisfaction: the role of motivation, perceived value and social cohesion.
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Mamalis, Spyridon, Kamenidou, Irene (Eirini), Karampatea, Aikaterini, Arseniou, Spyridon, Bouloumpasi, Elisavet, Skendi, Adriana, and Fourkioti, Glykeria
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TERROIR ,WINE tourism ,MARKETING ,COMPETITIVE advantage in business ,COHORT analysis - Abstract
Purpose: This study explores winery visitors' attitudes towards terroir significance as well as perceptions of terroir for marketing communication and as a competitive advantage for wineries, and uses these as a basis to examine intergenerational cohort differences. Methods: An online questionnaire was distributed using criteria for inclusion and employing a non-probability sampling frame. Over a seven-month period, 1174 questionnaires from members of four different generational cohorts were obtained and statistically analyzed. Descriptive statistics, factor, reliability analysis and One-way ANOVA were used. Results: On a 7-point Likert scale, cohorts in all cases, somewhat agree with the statements regarding winery and wine terroir. Cohort differences towards the three dimensions "Attitudes towards terroir significance", "Terroir as a competitive advantage" and "Terroir for marketing communication". were detected for the first and last dimension, whereas Baby Boomers and Generation Y had more positive attitudes and perceptions than Generation X and Generation Z. Implications: Acknowledging actual and potential wine tourists' attitudes towards terroir significance and perception of terroir as a competitive advantage tool and for marketing communication, wineries may implement effective marketing strategies in order to survive and thrive in the current competitive wine tourism market. [ABSTRACT FROM AUTHOR]
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- 2024
5. nvestigation of relief and environmental aspects by GIS to support the territorial management of viticulture in the 'Serra do Sudeste' wine-growing region, Brazil
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Rosemary Hoff, Rodrigo Alberti, Jorge Antônio Viel, Henrique Pauletto, and Milena Portella Nhoatto
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wine terroir ,geotechnologies ,soil ,land use ,environment ,Geography (General) ,G1-922 - Abstract
Research Purpose: To analyze aspects of relief and land use in relation to environmental preservation, in order to evaluate more favorable areas for viticulture, using data from medium resolution satellites and free GIS software. Methodology: The digital elevation model (DEM) of ALOS image with a resolution of 12.5 m was used to obtain hypsometry, slope and sun exposure. A Sentinel 2 image was used to obtain land use by MAXVER classification, highlighting native forest with field support. The data were processed in the QGIS program and the integration of the data was done by crossing relief, land use and environmental aspects. The permanent preservation areas (PPA) were obtained by geoprocessing in GIS. Findings: Permanent preservation areas associated with the margin of rivers, lakes and slopes above 45% were generated. The areas of vineyards, some planted since the 1970s in the region, coincided in part with the areas recommended in this study, as well as a soil zoning done previously. Originality/Value: This study contributes to the territorial and environmental management of the viticultural area of Encruzilhada do Sul, Brazil, and can be used for other activities. Viticulture can also be expanded to areas indicated as favorable, as well as encouraging to be extended to other areas of the Serra do Sudeste wine region.
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- 2023
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6. Wine Terroir Commitment in the Development of a Wine Destination.
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Capitello, Roberta, Sidali, Katia Laura, and Schamel, Günter
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TERROIR ,WINES ,TOURISM marketing ,CONSUMER behavior research ,WINE districts ,MARKETING literature - Abstract
New conceptualizations propose the concept of terroir as referring to a place of distinctiveness that is able to create marketing value. However, the knowledge regarding the role of terroir in tourism marketing is still scarce. Specifically, the concept of resident commitment has received little attention in research on tourism marketing, and therefore there is a gap in knowledge on the components of resident commitment and the role it can play in the construction or renewal of a tourist destination. To fill this gap, the purpose of this study is to analyze the role of residents' commitment in consideration of terroir as referring to both a winegrowing region and a place of residence. The study aims to determine how residents' commitment interacts with the brand dimensions identified in the marketing literature and consumer behavior research. In our theoretical framework we presented the wine terroir commitment (WTC) as a multidimensional grassroots construct and we empirically verified it by conducting a survey in a wine region, the Eisacktal Valley in South Tyrol (Italy). The findings show that Terroir Identification and Terroir Loyalty are two important antecedents of WTC as they mediate the exogenous latent variables of Terroir Prestige, and Wine Involvement as well as Resident Commitment and Terroir Experience, respectively. In the conclusions, we derive some recommendations for scholars and practitioners. [ABSTRACT FROM AUTHOR]
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- 2021
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7. Place attachment and Involvement with Rural Wine Tourism.
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SILVA, CARLA, KASTENHOLZ, ELISABETH, and PEIXEIRA MARQUES, CARLOS
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PLACE attachment (Psychology) ,WINE tourism ,RURAL tourism ,FOOD tourism ,LITERATURE reviews ,TOURISM websites ,SCIENCE databases ,WINE districts - Abstract
Tourism is motivated by the desire to experience distinct places and these places are typically perceived and linked to distinct images, emotions and meanings. The physical, natural and social and cultural elements of a place are important differentiating factors to attract, involve and attach people to them, both as visitors and residents. Place attachment and involvement has received increasing interest amongst tourism scholars, due to its obvious potential contribution to tourist loyalty and sustainable destination development. Still, despite the growing research on place-attachment and involvement in tourism, there is a lack of studies linking these constructs and specifically within wine regions. Within this context, the present conceptual work aims to present the concepts and dimensions of place-attachment and involvement in wine tourism based on an extensive literature review, from the scientific database Scopus, including the most relevant international scientific contributions in the field of tourism, with the keywords ‘place attachment’ and ‘involvement’ and ’wine tourism’. [ABSTRACT FROM AUTHOR]
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- 2021
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8. The Value of Soil Knowledge in Understanding Wine Terroir
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Robert E. White
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soil physics ,soil chemistry ,soil microbiome ,soil variability ,climate change ,wine terroir ,Environmental sciences ,GE1-350 - Abstract
There is an extensive literature on the role of soil physicochemical factors such as rate of water supply, N supply and soil temperature in wine terroir expression, especially for dry-grown vines. Other recent literature invokes the possibility of unique strains of the natural yeast Saccharomyces cerevisiae influencing must fermentations to produce distinctive aroma profiles in wines. Others suggest that the composition of the soil microbiome at particular sites can influence vine growth, fruit composition and wine characteristics to create a microbial terroir. Because terroir is a multifactor concept, no general quantitative relationships between one or more soil properties and the distinctive characteristics of wine from a particular site have been identified; rather a unique combination of soil factor values interacts with local climate, grape variety, vintage, canopy management, and winemaker technique to determine a site’s terroir. However, with modern methods of sensing spatially referenced values of environmental and other variables at high resolution, terroirs can be mapped. This provides a platform for monitoring terroirs over time and recording how they respond to changes in environmental factors or to manipulations in the vineyard and winery.
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- 2020
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9. The Value of Soil Knowledge in Understanding Wine Terroir
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Rob White
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lcsh:GE1-350 ,Wine ,Vine ,soil chemistry ,Ecology ,Soil physics ,soil variability ,food and beverages ,Soil chemistry ,wine terroir ,Biology ,Vineyard ,soil physics ,climate change ,Soil temperature ,soil microbiome ,Value (mathematics) ,lcsh:Environmental sciences ,General Environmental Science ,Terroir - Abstract
There is an extensive literature on the role of soil physicochemical factors such as rate of water supply, N supply and soil temperature in wine terroir expression, especially for dry-grown vines. Other recent literature invokes the possibility of unique strains of the natural yeast Saccharomyces cerevisiae influencing must fermentations to produce distinctive aroma profiles in wines. Others suggest that the composition of the soil microbiome at particular sites can influence vine growth, fruit composition and wine characteristics to create a microbial terroir. Because terroir is a multifactor concept, no general quantitative relationships between one or more soil properties and the distinctive characteristics of wine from a particular site have been identified; rather a unique combination of soil factor values interacts with local climate, grape variety, vintage, canopy management, and winemaker technique to determine a site’s terroir. However, with modern methods of sensing spatially referenced values of environmental and other variables at high resolution, terroirs can be mapped. This provides a platform for monitoring terroirs over time and recording how they respond to changes in environmental factors or to manipulations in the vineyard and winery.
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- 2020
- Full Text
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10. Geologia integrada a dados de relevo para caracterização de terroir vitivinícola em Pinheiro Machado, Brasil
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HOFF, Rosemary, BERGMANN, Magda, and ALBERTI, Rodrigo
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GEOLOGIA ,MDE ,DEM ANALYSIS ,PINHEIRO MACHADO ,GEOLOGY ,TERROIR VITIVINÍCOLA ,SIG ,RIO GRANDE DO SUL ,GIS ,WINE TERROIR - Abstract
Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq EMBRAPA CPRM UNISINOS Wine terroir characterizes an area in which natural and cultural factors determine the typicality of wines. Worldwide emblematic examples relate wine terroir with rocks, as in Burgundy, Canary Islands, Azores, Douro Valley, South Africa, California, among others. In the state of Rio Grande do Sul, the largest wine producer in Brazil, the Serra Gaúcha wine region is known by many geographical appellation, such as Vale dos Vinhedos. In addition this fact, there are new wine growing areas in the southern region, such as Campanha and Serra do Sudeste wine regions. Brazilian Agriculture Research Corporation has made studies using geotechnology in the Serra do Sudeste Wine Region and studies was made with geology and wine. The objective of this study was to investigate aspects of the relief in each geological unit, in order to evaluate its favorability for wine terroir under relief aspects. Using MDE, elevation, slope and exposure were obtained and these were reclassified and analyzed in GIS. The integration of geological data with relief information resulted in geological criteria for wine terroir in the Pinheiro Machado Region. The product of this work was the indication of areas that have relief attributes favorable to the viticulture in each lithology unit and its capacity to contribute for wine terroir in Brazil
- Published
- 2017
11. Organisation spatiale de la fracturation de détente mécanique de versant en carrières souterraines. Application aux plateaux des calcaires éocènes du Bassin de Paris
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Geoffroy Gobancé, Olivier Lejeune, Nicolas Bollot, Christelle Sosson, Alain Devos, Laurent Chalumeau, and Éléonore Barre
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Hydrographie ,Climate ,carrières souterraines ,Salinisation ,Risque ,Réchauffement climatique ,Lutte antiérosive ,réseau de fracturation ,détente mécanique ,Global warming ,Salinization ,General Medicine ,Paris basin ,Cirques glaciaires ,mechanical distension ,Gullying ,Soil conservation ,slope ,Géomorphologie ,Ravinement ,Wine terroir ,Bassin de Paris ,Erosion hydrique ,calcaires lutétiens ,extension latérale ,Karst ,lcsh:G1-922 ,versant ,underground quarries ,Basement complex ,Soil degradation ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Grape variety ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,Paleokarst ,Lutetian limestone ,fracturing network ,Underground carries ,Terroir viticole ,lateral spreading ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
L'organisation spatiale de la fracturation de détente mécanique liée aux vallées est étudiée en carrière souterraine. Trente carrières situées dans les plateaux des calcaires éocènes du bassin de Paris, sur le revers de la côte d'Île-de-France, ont été étudiées. La méthode de travail consiste à réaliser une topographie de chaque carrière et à caractériser la fissuration recoupée sous terre (mesure de l'orientation, de la largeur des fissures, étude de leur remplissage) par des indices de fracturation et par une analyse statistique. Les résultats montrent que la fissuration dépend non seulement du contexte géomorphologique mais aussi de l'éloignement au versant. En effet, les sites d'éperon et de vallon d'ordre 1 sont caractérisés par une fracturation orthogonale débitant des blocs de petite taille, alors que les autres sites (front de côte, versant à tracé rectiligne, crête) présentent un réseau de fissures parallèles au versant, sans cloisonnement. La densité de fracturation augmente du centre des plateaux vers les versants, témoignant d'une détente mécanique qui s'accompagne d'une "cambrure" de versant ("camber" ou "cambering" des auteurs anglo-saxons), d'une extension latérale et de glissements à blocs. Le réseau de fissures porte la marque d'une paléokarstification des calcaires du Lutétien. Fracturing network is studied in underground quarries where slope mechanical distension is characterized. Thirty quarries are chosen in plateaus of Lutetian limestone of Paris basin (north-east France). The working method consists in realizing topography of underground quarries and in measuring fracturing network (orientation, width and filling) by fracturing index and statistic analyses. The fracturing network depends to geomorphological context and to length to the slope. Indeed, sites of spur and dale of order 1 are characterized by an orthogonal fracturing debiting of small block sizes. The other sites (front slope, slope of rectilinear valley, crest) have a parallel fracturing network to the slope without partitioning. Fracture density increases from the center of the plateau to the slope indicating a mechanical distension that comes with cambering, lateral spreading and sliding block. The fracturing network is the seat of karst in Lutetian limestone (palaeokarst).
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- 2012
12. Caractérisation physique et évolution historique d'un terroir viticole champenois : le cas de la commune de Sézanne (Marne – France)
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Lionel Stroppa, Anne Combaud, and Alain Marre
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Hydrographie ,Climate ,Salinisation ,Risque ,Réchauffement climatique ,Lutte antiérosive ,grape variety ,media_common ,terroir ,Global warming ,Salinization ,General Medicine ,Art ,lithologic formations ,Cirques glaciaires ,Gullying ,Soil conservation ,France ,Géomorphologie ,Ravinement ,Wine terroir ,media_common.quotation_subject ,formations lithologiques ,Erosion hydrique ,Karst ,lcsh:G1-922 ,Basement complex ,Soil degradation ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,topography ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Terroir ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,geomorphology ,Paleokarst ,Mechanical distension ,Underground carries ,Terroir viticole ,Champagne ,Détente mécanique ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,Humanities ,lcsh:Geography (General) ,topographie - Abstract
Le vin de Champagne étant un vin d'assemblage, la notion de terroir n'est pas usitée dans le vignoble champenois. Pourtant les œnologues de chacune des Maisons de Champagne construisent leurs produits en utilisant des vins de cépages différents, venus de parcelles différentes, en se fondant sur la dégustation et sur la connaissance traditionnelle du goûteur.Une connaissance précise des paramètres physiques des terroirs champenois à diverses échelles peut être une aide pour ce travail d'élaboration des vins et pour la conduite du travail viticole. C'est dans cet esprit que depuis une quinzaine d'années une réflexion est menée sur la notion de terroir en Champagne. Cette étude présente les résultats pour une commune de 22,8 km2, peu étudiée et non classée parmi les meilleurs crus. Elle intègre tous les paramètres naturels auxquels a été ajoutée l'évolution historique de l'implantation du vignoble, afin de comprendre les logiques de plantation et comment les vignerons cherchent à s'adapter aux demandes gustatives des consommateurs tout en respectant les traditions et les conditions naturelles. Due to the blending, we don't speak of "terroir" in Champagne vineyard. But, in fact, oenologists of each "Maison de Champagne" make their wines with different grapes varieties harvested in different plots. This work is founded only on traditional knowledge and wine tasting.Choice during works of winegrowing and wine tasting can be improved with scientific studies of the "micro-terroirs". That's why, some years ago, a reflection begun on the concept of "terroir" in Champagne. This article presents a case study of Sezanne, a vineyard area of 22.8 km2, unknown and not classified among the best vineyards. It carries out the relation between physics and historic parameters, and how the wine growers modify plantations to adapt themselves to the requests of the consumers, while respecting the traditions and the natural conditions.
- Published
- 2012
13. Contribution à l'analyse morphométrique comparée de cirques glaciaires des Alpes et de massifs anciens européens
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Francis Huguet
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Hydrographie ,Climate ,Salinisation ,érosion glaciaire ,Risque ,cirques glaciaires ,Réchauffement climatique ,Lutte antiérosive ,basement complex ,Global warming ,Salinization ,General Medicine ,humanities ,Gullying ,Soil conservation ,Géomorphologie ,morphometry ,Southern Alps ,Ravinement ,Wine terroir ,Erosion hydrique ,Karst ,lcsh:G1-922 ,Soil degradation ,glacial erosion ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,Grape variety ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Climat ,massifs anciens ,Geomorphology ,Glacial cirques ,Paleokarst ,Mechanical distension ,Alpes du Sud ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,morphométrie ,glacial cirques ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
L'étude morphométrique comparée de 30 cirques glaciaires des massifs anciens européens et de 30 cirques des Alpes a permis de mettre en évidence des différences significatives entre les cirques alpins et ceux des massifs anciens. Les cirques alpins sont en moyenne plus grands et leur paroi est plus haute. Ces différences ne s'expliquent pas par des modalités différentes de l'érosion glaciaire, que rien n'indique, mais seraient à mettre au compte de l'exploitation par l'érosion glaciaire de contextes topographique et géomorphologique différents. L'énergie du relief et les dénivellations sont plus grandes dans les massifs alpins tandis que les surfaces planes et les banquettes étagées héritées de la morphogenèse tertiaire sont plus fréquentes dans les massifs anciens.A morphometric comparison between 30 glacial cirques located in European basement areas and 30 cirques located in the Alps attests significant differences between the Alpine cirques and those of basement complex areas. In average, Alpine cirques are larger and their wall is higher. Those differences cannot be accounted for by different glacial erosion, that no evidence suggests, but by different topographic and geomorphic conditions. The relief energy is more contrasted in Alpine mountains, whereas flat topographies and stepped landforms, inherited from the Tertiary, are more frequent in basement complex areas.
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- 2012
14. Les grottes du massif des Calanques (Marseilleveyre - Puget - Riou, France) : géologie, géomorphologie, sédimentologie
- Author
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Jean Joseph Blanc
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Hydrographie ,Climate ,Massif des Calanques ,Salinisation ,Risque ,Réchauffement climatique ,Lutte antiérosive ,submarine caves ,Marseille ,speleothems ,Global warming ,Salinization ,General Medicine ,karst ,underground water circulation ,Cirques glaciaires ,Gullying ,paléokarst ,Soil conservation ,neotectonics ,France ,Géomorphologie ,flowstones ,Ravinement ,Wine terroir ,Erosion hydrique ,lcsh:G1-922 ,Basement complex ,Soil degradation ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,drainages souterrains ,Grape variety ,spéléothèmes ,néotectonique ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,Cassis ,Paleokarst ,Mechanical distension ,Underground carries ,grottes marines ,Terroir viticole ,planchers stalagmitiques ,Détente mécanique ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
Description des principales cavités du massif des Calanques, de Marseille à Cassis. Importance des caractères du substratum et, naturellement, des calcaires liés aux facies de l'Urgonien et du Valanginien. Les conditions tectoniques locales sont examinées : chevauchement des îles, au sud du massif, pli de Sormiou, bordures du bassin d'effondrement de Marseille.Les remplissages des cavités constituent une séquence particulière : masses de calcite, limons et silts rubéfiés et consolidés, planchers stalagmitiques successifs, grès et dépôts holocènes, et contexte archéologique. L'attention est portée sur les phénomènes néotectoniques et les déformations des séries colmatant les cavités.Description des grottes littorales et modalités de leur évolution ; Cosquer, Triperie, Riou, Trémies et rivières souterraines de Port-Miou et du Bestouan. Inventaire des principales grottes du massif et des cavités sous-marines. Description and speleogenesis of some caves in the calcareous formations of the "Massif des Calanques" in relation with lithology and tectonic environments: faults, Sormiou anticline, submersion coast in the "Calanques" valleys, karstic landscapes until the holocene period. This work deals to the speleothems and other sedimentary fillings in correlation with the flowstones, silts and tectonic breccias. The speleogenesis of several marine cavities is observed into caves (Cosquer, Triperie, Riou, Tremies) and two principal drains (the underground rivers of Port-Miou and the Bestouan). A list of caves and rock-shelters for Marseilleveyre and Puget shows the importance of ancient fossil circulations. This study deals an evolution with neo-tectonic deformations, immersion of karstic voids linked to a polycyclic paleokarst.
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- 2012
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15. Évolution spatiale de la Thielle moyenne : de l'intérêt d'utiliser les cartes historiques dans une étude géomorphologique. Approche méthodologique
- Author
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Nicole Plumettaz, Anne Combaud, Laurent Chalumeau, Gianna Reginelli-Servais, Groupe d'Étude sur les Géomatériaux et Environnements Naturels, Anthropiques et Archéologiques - EA 3795 (GEGENAA), Université de Reims Champagne-Ardenne (URCA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Maison des Sciences Humaines de Champagne-Ardenne (MSH-URCA), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA), and Institut Polytechnique LaSalle Beauvais
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Hydrographie ,010504 meteorology & atmospheric sciences ,Climate ,Salinisation ,010501 environmental sciences ,Risque ,01 natural sciences ,map compiled ,Réchauffement climatique ,Lutte antiérosive ,Suisse ,ComputingMilieux_MISCELLANEOUS ,Global warming ,Salinization ,General Medicine ,GIS ,SIG ,Cirques glaciaires ,Gullying ,Soil conservation ,Géomorphologie ,Switzerland ,Thielle ,Ravinement ,Wine terroir ,Lake Neuchâtel ,Erosion hydrique ,lcsh:G1-922 ,Karst ,Basement complex ,Soil degradation ,Zooplankton ,Upper Steppes ,Cépages ,Suffosion ,Carrières souterraines ,Grape variety ,carte compilée ,Hydrography ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,lcsh:Physical geography ,Irrigation ,Historical maps ,0105 earth and related environmental sciences ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,lac de Neuchâtel ,15. Life on land ,Paleokarst ,Mechanical distension ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
L'exutoire du lac de Neuchâtel regroupe une quarantaine de sites archéologiques, dont le site éponyme de Marin-La Tène, dans un contexte environnemental marécageux. Afin d'améliorer la compréhension de l'implantation des sites, une étude du contexte géomorphologique a été menée. Dans ce cadre, il a été nécessaire de cartographier les variations spatiales de deux facteurs clefs : les rivages du Lac de Neuchâtel et les divagations de son effluent, la Thielle moyenne. Or les nombreux aménagements et l'urbanisation importante de la zone d'étude durant le dernier siècle limite les méthodes de prospection. Ainsi la méthode fondée sur l'inventaire et l'étude régressive des documents planimétriques anciens, débouchant sur la réalisation d'une carte compilée, est-elle utilisée, afin de reconstituer l'évolution du réseau hydrographique du XVIème siècle à nos jours. In the outlet plain of Lake Neuchâtel made of silts and swampy sediments, there are more than forty archaeological sites whose the eponym site Marin-La Tène. To understand the location of these sites, it is necessary to map the geographic evolution of: the shores of Lake Neuchâtel and the bed of the outlet "Thielle moyenne". But the many developments and the important urbanization of the plain during the last century restrict prospecting methods. The methodology we have chosen is based on the use of old maps (inventory, regressive study and map compiled) to study the evolution of hyrological network since the 16th century.
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- 2012
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16. Diversité spécifique et abondance des communautés de copépodes, cladocères et rotifères des lacs du complexe Ossa (Dizangué, Cameroun)
- Author
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Siméon Tchakonté, Sophie Carine Djutso Segnou, Tidjani Safia Mahamat Tahir, Serge Hubert Zébazé Togouet, Joseph Guy Nzieleu Tchapgnouo, Bernadette Pinel-Alloul, and Thomas Njiné
- Subjects
Hydrographie ,Climate ,abondance ,Salinisation ,Risque ,Réchauffement climatique ,Lutte antiérosive ,abundance ,Global warming ,space-time variation ,Salinization ,General Medicine ,Cirques glaciaires ,diversité spécifique ,Gullying ,Soil conservation ,zooplancton ,Géomorphologie ,Ravinement ,zooplankton ,Wine terroir ,complexe lacustre Ossa ,Erosion hydrique ,lcsh:G1-922 ,Karst ,Ossa lakes complex Cameroon ,Basement complex ,Soil degradation ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,Cameroun ,Grape variety ,Hydrography ,lcsh:Physical geography ,Irrigation ,Historical maps ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,species diversity ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,Paleokarst ,variation spatio-temporelle ,Mechanical distension ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
La composition et la structure du zooplancton de deux lacs du complexe lacustre Ossa (Ossa et Mwembè), site protégé UNESCO situé dans une plaine inondable, ont fait l'objet d'une étude entre septembre 2009 et février 2010. 37 et 41 espèces de zooplancton ont été recensées respectivement dans les lacs Ossa et Mwembè. Les deux milieux, oligotrophes, sont soumis à l'influence du fleuve Sanaga qui leur apporte en temps de crue de nouvelles espèces. La présence de Mesocyclops leuckarti dans ces eaux amène à considérer l'existence de cette espèce sur le continent africain. La densité des organismes zooplanctoniques augmente entre septembre et novembre et chute rapidement en décembre, ce qui s'accorde avec une succession saisonnière des communautés. Les paramètres physico-chimiques, qui permettent de caractériser les plans d'eau comme oligotrophes, ne diffèrent pas significativement entre les deux milieux, ni avec la profondeur de prélèvement, ce qui justifie la valeur de 82 % trouvée pour l'indice de similitude de SÖRENSEN. Quant à la structure des populations de zooplancton, elle est influencée principalement par la saison et par la profondeur de prélèvement, le mois et la station n'ayant pas d'influence sur cette distribution.The composition and the structure of the zooplankton of two lakes of the Ossa lake complex (Ossa and Mwembe) were studied between September 2009 and February 2010. 37 and 41 species of zooplankton were inventoried respectively in the lakes Ossa and Mwembe. The two environments are oligotrophic but subjected to the influence of the river Sanaga that brings them in swelling time new species. Mesocyclops leuckarti found in these lakes suggests the presence of this species on the African continent. The density of the zooplankton organisms increases between September and November and falls quickly in December, in accordance with a seasonal impact on communities. The physicochemical parameters do not differ significantly between the two environments and with the sampling depth. This justifies the value of 82 % obtained with the SÖRENSEN index. The structure of the populations of zooplankton is principally influenced by the season. The sampling depth, the month and the station do not influence this distribution.
- Published
- 2012
- Full Text
- View/download PDF
17. Cartographie de la vulnérabilité multifactorielle à l'érosion hydrique des sols de la région de Bonoua (Sud-Est de la Côte d'Ivoire)
- Author
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Gabriel Etienne Ake, Jean-Baptiste Ettien, Jean Biemi, Kôkôh Rose Effebi, Boyossoro Hélène Kouadio, and Miessan Germain Adja
- Subjects
Hydrographie ,Climate ,Salinisation ,Risque ,Réchauffement climatique ,Lutte antiérosive ,Global warming ,érosion hydrique ,Salinization ,General Medicine ,SIG ,GIS ,Cirques glaciaires ,Geography ,Gullying ,Soil conservation ,water erosion ,Géomorphologie ,Ravinement ,Wine terroir ,Côte d'Ivoire ,Water erosion ,Erosion hydrique ,Karst ,lcsh:G1-922 ,Cote d ivoire ,Basement complex ,Soil degradation ,Zooplankton ,Upper Steppes ,Cépages ,Suffosion ,Carrières souterraines ,Grape variety ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,vulnérabilité multifactorielle ,Geomorphology ,Glacial cirques ,Forestry ,Paleokarst ,Mechanical distension ,multifactorial vulnerability ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
L'érosion hydrique des sols n'a pas été suffisamment étudiée dans la région de Bonoua au Sud-Est de la Côte d'Ivoire où l'activité économique dominante demeure l'agriculture. Par conséquent, des méthodes de contrôle s'avèrent nécessaires, afin d'assurer une gestion durable des sols et de sécuriser les productions agricoles. L'objectif de cette étude est de fournir des éléments pour cartographier la vulnérabilité multifactorielle à l'érosion hydrique. L'approche passe par une analyse des principaux facteurs de l'érosion : l'érosivité des pluies, l'érodabilité des sols, la pente et l'occupation des sols. Les cartes obtenues sont intégrées dans un Système d'Information Géographique (SIG) à l'aide d'une combinaison additive pour établir une carte de vulnérabilité à l'érosion hydrique. Cette carte est validée par des observations de terrain. Trois classes de vulnérabilité multifactorielle à l'érosion hydrique ont été distinguées : les zones à faible vulnérabilité (29 %) ; les zones à vulnérabilité moyenne (34 %) et les zones fortement vulnérables (37 %). Ainsi, dans la région de Bonoua, les classes à moyenne et forte vulnérabilité multifactorielle représentent 71 % de la superficie. Cette première ébauche cartographique est un outil devant aider les décideurs pour l'attribution des zones de cultures et des sites pouvant abriter des infrastructures socio-économiques.Water soils erosion has not been studied enough in the region of Bonoua south-eastern Côte d'Ivoire where major economic activity remains the agriculture. Consequently, control methods are necessary in order to ensure sustainable management of soils and to secure agricultural productions. The objective of this study is to supply tools for mapping multifactorial vulnerability to water soil erosion. The method involves an analysis of the main factors of erosion: rainfall erosivity, soil erodibility, slope and land use. Obtained maps are integrated in Geographic Information System (GIS) throughout an additive combinaison to establish a vulnerability water soils erosion map. This map is validated after ground observations. Three classes of multifactorial vulnerability to water erosion have been distinguished: areas with low vulnerability (29 per cent); areas with middle vulnerability (34 per cent) and areas with high vulnerability (37 per cent). Thus, in the region of Bonoua, classes with a middle or high multifactorial vulnerability represent 71 per cent of the study area. This first map is a tool that would help decision makers in attribution of areas for agricultural activities and for socio-economic substructures.
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- 2012
- Full Text
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18. Suffosion et érosion hydrique en milieux semi-arides, le cas des Hautes Steppes tunisiennes (Tunisie centrale)
- Author
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Amor Bkhairi
- Subjects
Hydrographie ,étude diachronique ,hypodermic flow ,Climate ,Salinisation ,Risque ,Réchauffement climatique ,ravinement ,Lutte antiérosive ,écoulement hypodermique ,suffusion ,comparative study ,Global warming ,Salinization ,cartographie morphodynamique ,morphodynamic mapping ,General Medicine ,Cirques glaciaires ,Gullying ,Soil conservation ,gullying ,Géomorphologie ,Wine terroir ,Erosion hydrique ,Karst ,lcsh:G1-922 ,Basement complex ,Soil degradation ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,Grape variety ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,Submarine caves ,Tsunami ,Hautes Steppes ,central Tunisia ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,Paleokarst ,suffosion ,Mechanical distension ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,Massifs anciens ,Tunisie centrale ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
L'érosion hydrique est très active dans la région des Hautes Steppes tunisiennes, particulièrement dans les plaines alluviales où elle est très largement commandée par la suffosion. Cette dynamique érosive représente une menace sérieuse pour les terres agricoles. Les phénomènes érosifs liés à la suffosion provoquent des ravinements, des sapements de berge et l'élargissement de la section des oueds. Une cartographie morphodynamique détaillée, appuyée sur une prospection fine du terrain, l'exploitation de données spatiales multi-dates et l'étude de quelques cas, montre du reste la forte sensibilité de la région à l'érosion hydrique liée à la suffosion. Les formes de ravinement et le rythme des incisions linéaires mis en lumière par une étude diachronique de photographies aériennes orthorectifiées, pose le problème des facteurs de cette évolution accélérée : agressivité des pluies, érodibilité des sols et des formations à l'affleurement, inclinaison des pentes, modestie du couvert végétal et action anthropique inadaptée.Hydric erosion is very active in the Upper Steppes area of Tunisia chiefly on the alluvial floodplains where it is largely controlled by suffusion. This erosive dynamic represents a threat for the agricultural lands. The erosive phenomena related to suffusion, causes gullying, banks undermining and enlargement of the section of wadis. A morphodynamic mapping based on field-observations, the exploitation of aerial photos multi-date data, and the study of some examples put moreover in evidence the sensibility of the area to erosion phenomena in relation with suffusion. The forms of gullying and a comparative study of orthorectified air photographs pose the problem of the factors of this accelerated evolution: rainfall aggressivity, soil erodibility, inclination of the slopes, weakness of the vegetal cover and inappropriate human activities.
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- 2012
19. Gamma-ray spectrometry for distinguishing acid and basic rocks of the serra geral formation, in the serra gaúcha wine region, Brazil
- Author
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MODENA, R. C. C., HOFF, R., FARIAS, A. R., VIEL, J. A., COELHO, O. G. W., Rudi Cesar Comiotto Modena, Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Engenharia de Minas, Metalurgia e de Materiais, Av. Bento Gonc¸alves, 9500, Setor 4 - prédio 74, Campus do Vale, 91501-970 Porto Alegre, RS, Brazil. Phone/Fax: +55(51) 3308-9475, Osmar Gustavo Wöhl Coelho, Universidade do Vale do Rio dos Sinos – UNISINOS, Av. Unisinos, 950, Bairro Cristo Rei, 93022-750 S˜ao Leopoldo, RS, Brazil. Phone/Fax: +55(51) 3591-1122 – E-mail: osmar@unisinos.br., ANDRE RODRIGO FARIAS, SGTE, ROSEMARY HOFF, CNPUV, and Jorge António Viel, Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Sensoriamento Remoto, Av. Bento Gonc¸alves, 9500, pr´edio 44202, Campus do Vale, 91501-970 Porto Alegre, RS, Brazil. Phone/Fax: +55(51) 3308-7477 ? E-mail: ja-viel89@hotmail.com
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Terroir vitivinícola ,Serra Geral ,Wine terroir ,Rochas ácidas ,Rochas básicas ,Serra Gaúcha ,Vitivinícola ,Rocha vulcênica ,Rio Grande do Sul ,Gamaespectrometria ,Elementos radioativos ,Métodos geofísicos ,Geophysical method ,Volcanic rock - Abstract
The gamma-ray spectrometric research has allowed for observation of the distribution of radioactive elements such as K, U and Th for recognizing the radioactive signatures of different rock types. The objective of this study was to evaluate the possibility to distinguish between acid and basic rocks of the Serra Geral Formation, in the Serra Gaúcha wine region in the state of Rio Grande do Sul (Brazil) through gamma-ray spectrometry techniques. This study contributed to geologically... Keywords: geophysical method, wine terroir, volcanic rock. A pesquisa por gamaespectrometria tem permitido observar a distribuição de elementos radioativos, tais como K, U e Th reconhecendo as assinaturas radioativas de diferentes tipos de rocha. O objetivo deste estudo foi avaliar a possibilidade de distinguir entre as rochas ácidas e básicas da Formação Serra Geral, na região vitivinícola Serra Gaúcha, no estado do Rio Grande do Sul (Brasil) por meio de técnicas de gamaespectrometria Palavras-chave: m´étodos geofísicos, terroir vitivinícola, rocha vulcânica. Made available in DSpace on 2018-05-10T01:05:04Z (GMT). No. of bitstreams: 1 88938371PB.pdf: 3908782 bytes, checksum: 7186c7829be23f855fae2cd44c14814d (MD5) Previous issue date: 2017-12-11
- Published
- 2016
20. Atlas du réchauffement climatique 1971-2010
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Hydrographie ,Ravinement ,Wine terroir ,Climate ,Erosion hydrique ,Karst ,Salinisation ,Basement complex ,Risque ,Soil degradation ,Réchauffement climatique ,Zooplankton ,Lutte antiérosive ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,Grape variety ,Hydrography ,Irrigation ,Historical maps ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Global warming ,Morphometry ,Climat ,Salinization ,Geomorphology ,Glacial cirques ,Paleokarst ,Cirques glaciaires ,Mechanical distension ,Gullying ,Soil conservation ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,Massifs anciens ,Géomorphologie - Abstract
Fiche supprimée le 5 mai 2013, l'ouvrage étant présenté dans la sous-partie Collection "Ouvrages".
- Published
- 2013
21. Le risque tsunamique au Maroc : modélisation et évaluation au moyen d'un premier jeu d'indicateurs d'exposition du littoral atlantique
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Maria Ana Baptista, Monique Gherardi, Bendahhou Zourarah, Rachid Omira, Frédéric Leone, Samira Mellas, Matthieu Péroche, and Emilie Lagahé
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Hydrographie ,Climate ,0211 other engineering and technologies ,02 engineering and technology ,Salinisation ,010502 geochemistry & geophysics ,Risque ,01 natural sciences ,Réchauffement climatique ,Lutte antiérosive ,risk ,Global warming ,Salinization ,General Medicine ,Cirques glaciaires ,Morocco ,Gullying ,Soil conservation ,Géomorphologie ,exposition ,Ravinement ,Wine terroir ,Erosion hydrique ,lcsh:G1-922 ,Karst ,Basement complex ,Soil degradation ,Zooplankton ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,Grape variety ,Hydrography ,lcsh:Physical geography ,Irrigation ,Historical maps ,0105 earth and related environmental sciences ,modélisation ,021110 strategic, defence & security studies ,Morphométrie ,Submarine caves ,Hautes Steppes ,Tsunami ,Morphometry ,Climat ,modeling ,Geomorphology ,Glacial cirques ,Paleokarst ,indicators ,Maroc ,Mechanical distension ,13. Climate action ,exposure ,Underground carries ,Terroir viticole ,Détente mécanique ,tsunami ,Grottes marines ,Massifs anciens ,lcsh:GB3-5030 ,lcsh:Geography (General) ,indicateurs - Abstract
Cet article propose une démarche méthodologique et un premier jeu d'indicateurs pour estimer l'exposition territoriale du littoral atlantique marocain au risque de tsunami. Il repose sur la modélisation numérique d'un tsunami de source sismique comparable à celle de 1755 (séisme de Lisbonne) et le couplage de bases de données géoréférencées sur l'occupation du littoral. La modélisation fournit des temps de trajet, des hauteurs d'eau et des enveloppes de submersion sur 67 communes atlantiques. Les principaux géo-indicateurs obtenus permettent de comparer l'exposition humaine, urbaine et industrielle à l'échelle du Maroc. Ces résultats sont agrégés sur plusieurs mailles territoriales et sont exprimés en valeurs absolues ou relatives afin d'offrir le plus grand éventail cartographique aux décideurs. L'exposition est plus forte sur le corridor urbain médio-atlantique Rabat-El Jadida. Ces résultats contribuent à une meilleure appréciation du risque de tsunami au Maroc, mais qui doit toutefois être affinée et réactualisée dans une démarche de prévention et de sensibilisation. This paper seeks to estimate the exposure of the Atlantic coast of Morocco to tsunami risk. A methodological approach and a first set of tsunami risk indicators are presented. The proposed approach is based upon a coupling of tsunami numerical modeling with coastal land use geo-referenced databases. Tsunami numerical modeling is performed for a 1755-like earthquake scenario allowing the prediction of travel times, wave heights and flooding areas on 67 communes (local administrative units). While, the obtained main geo-indicators allow to compare the tsunami risk for population, and industrial/urban areas at a regional scale along Moroccan Atlantic coast. These results are aggregated over several territorial units and are expressed in absolute or relative values to provide the widest range of maps to decision makers. The exposure to tsunami risk is high along the Rabat-El Jadida mid-Atlantic urban corridor. These results give an insight on the estimation of tsunami risk in Morocco, which needs to be improved and updated in a prevention and awareness approach.
- Published
- 2012
22. Atlas du réchauffement climatique 1971-2010
- Author
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Jean-Claude Flageollet
- Subjects
Hydrographie ,Climate ,base de données Gistemp ,Salinisation ,Risque ,global warming ,Réchauffement climatique ,Lutte antiérosive ,multi decadal warming ,réchauffement régional ,Salinization ,General Medicine ,Cirques glaciaires ,recent warming ,Gullying ,Soil conservation ,réchauffement pluri décennal ,atlas du réchauffement ,Géomorphologie ,Ravinement ,data base Gistemp ,Wine terroir ,Erosion hydrique ,Karst ,lcsh:G1-922 ,warm years ,réchauffement récent ,Basement complex ,Soil degradation ,Zooplankton ,warming atlas ,Cépages ,Suffosion ,Upper Steppes ,Carrières souterraines ,urban and rural climatic stations ,Grape variety ,années chaudes ,Hydrography ,Irrigation ,lcsh:Physical geography ,Historical maps ,Morphométrie ,décennies de réchauffement ,Submarine caves ,Hautes Steppes ,Tsunami ,réchauffement global ,Morphometry ,Climat ,Geomorphology ,Glacial cirques ,Paleokarst ,Mechanical distension ,stations climatiques rurales ,Underground carries ,Terroir viticole ,Détente mécanique ,Grottes marines ,stations climatiques urbaines ,Massifs anciens ,regional warming ,lcsh:GB3-5030 ,lcsh:Geography (General) - Abstract
Cet atlas présente le réchauffement climatique récent, de 1971 à 2010, dans les terres émergées continentales et océaniques découpées en 39 régions dont, pour certaines d'entre elles, les limites sont proches des limites des régions climatiques du globe telles que définies et tracées par exemple par KÖPPEN et GEIGER. Les températures utilisées sont les moyennes annuelles empruntées à la base de données "Gistemp" de la NASA, complétées par calcul et par station. Dans chaque région, sont représentées graphiquement l'évolution des températures annuelles, selon l'environnement des stations, rural, urbain ou intermédiaire, ainsi que la valeur du réchauffement, par périodes pluri annuelles et décennales. En outre, les stations, classées en deux catégories en comparant leurs températures de 2009 et 2010, sont localisées sur des cartes à l'échelle de chaque continent. Quatre cartes régionales du réchauffement sont produites pour les périodes 1971-2010, 1981-2010, 1991-2010 et 20012010. Elles permettent de distinguer les régions en réchauffement et les régions en refroidissement, ces dernières concernant principalement les deux dernières décennies. This atlas presents the recent warming, from 1971 to 2010, in the continental and oceanic earth's land surface, divided into 39 regions which, for some of them, the limits are close to the earth's climatic regions defined and delineated by KÖPPEN and GEIGER. The temperatures used are annual averages taken from the "Gistemp" data base of the NASA, supplemented by calculation and by station. In each region, graphs and diagrams represent the evolution of annual temperatures as well as pluri-annual, decadal and multi decadal periods of warming, depending on the environment of stations: rural, urban or intermediate. In addition, the stations, divided into two categories by comparing their temperatures of 2009 and 2010, are located on each continent-scale maps. Four regional maps of warming are drawn up for the periods 1971-2010, 1981-2010, 1991-2010 and 2001-2010. The warming regions are distinguished from the cooling regions, mainly during the last two decades.
- Published
- 2012
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