0000000000724273

AUTHOR

Emmanuel Chevigny

Detection and identification of archaeological features using aerial LIDAR data in a forested environment (Châtillon-sur-Seine, Côte-d’Or, France).

International audience; In the field of archaeology, a range of processing techniques has been developed this last decade for the visualization and analysis of LIDAR elevation data. Traditional processing methods are based on illumination techniques (e.g. hill-shading, Sky View Factor, topographic openness…) or on morphometric analysis (e.g. slope, profile curvature, aspect, local relief model…). All these techniques have shown their potential for identifying archeological features, especially in forested environment where photo interpretation is not usable. In this work, such techniques have been applied to detect archeological features from the processing of LIDAR data that were acquired …

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Cartographie géologique à haute résolution pour une meilleure compréhension de la diversité du sous-sol viticole de la " Côte " (Bourgogne, France)

International audience

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Vineyard soils and landscapes of the Burgundy Côte (France): a historical construction worth preserving

International audience; The construction of vineyard landscapes along the Burgundy Côte is the result of geological processes and of human labour. Substratum diversity in this vineyard is the result of a very long history explained by the diversity of Jurassic sedimentary facies and Tertiary tectonic activity. The nature and thickness of Quaternary deposits (Weichselian scree debris and alluvial fans) reflect sediment dynamics concurrent with the last glaciation. As soon as humans started to occupy and cultivate these slopes, the changes they made in the land through crop development and roads began to structure the vineyard plots in a lasting way. The footprint of vine work in soils can be…

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La résilience de l’érosion du sol en réponse à l’évolution des occupations culturales du sol en contexte viticole (Monthelie, Côte de Beaune)

National audience; Les événements naturels extrêmes sont à l’origine de l’essentiel du transfert de matière observé sur les versants. Outre des enjeux sociétaux et économiques, ces événements peuvent également avoir des répercussions environnementales et culturales irréversibles en modifiant les répartitions spatiales des surfaces cultivables, en affectant aussi bien quantitativement que qualitativement les sols de ces versants. Il apparaît donc essentiel de comprendre, quantifier et prévoir les transferts de matière sur les versants en réponse à des événements naturels extrêmes.Parmi les différents contextes agricoles, les versants viticoles sont reconnus comme des versants particulièremen…

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Lidar : traitement avancé des données et interprétation archéologique - cours 2016

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Etude de la côte viticole par laser aéroporté (Lidar)

International audience

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Caractérisation et fonctionnement physico-hydrique des sols viticoles bourguignons. Rôle de l’homme dans la construction des terroirs

Des opérations de recherches interdisciplinaires sont conduites – en associant pédologues, archéologues, géomorphologues et professionnels – sur les sols viticoles bourguignons pour permettre de développer une viticulture de précision durable. Trois thématiques sont abordées : (i) la cartographie à haute résolution de la diversité des sols viticoles permettant de faire la part des processus naturels et de l’action de l’homme incluant les pas de temps longs (plusieurs siècles) sur la formation des sols et leur fonctionnement actuel (4, 5) ; (ii) le régime hydrique des sols viticoles qui détermine l’alimentation en eau de la vigne et la qualité du produit : un stress hydrique modéré favorisan…

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Vineyard soil mapping from very high spatial resolution images in hillslope context: a contribution of terroir knowledge.

The Burgundian vineyard hillslopes (Côte-d’Or, France) exhibit a high diversity of soils resulting from the combination of several natural and anthropogenic factors acting at various spatio-temporal scales. The soil types have major role in viticulture, since they partly determine wine-growing quality. However, soil undergoes important degradation caused by hydric erosion and vineyard management practices. To control this soil heritage for a sustained viticulture in Côte-d’Or, a better knowledge of soil is necessary. The objectives of this work is to characterise vineyard soils and to identify the factors governing their diversity using an interdisciplinary approach crossing geology, geomor…

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USING AERIAL IMAGE ANALYSIS AS A TOOL FOR TOPSOIL, SOIL AND SUBSTRATE MAPPING IN VINEYARDS(BURGUNDY, FRANCE)

International audience; In Burgundy, vineyards present a high diversity of Terroirs, controlled by complex interactions between natural and human factors. The relationship between these factors leads to define wine typicity. However, a better understanding of how Terroirs have been defined is necessary for the sustainable, rational management of vineyard soils.The objectives of the study are (i) to identify Terroirs variability in vineyards of Burgundy (France) at hillslope scale and (ii) to highlight natural (soil, substratum) and anthropogenic factors (management practices) controlling Terroir diversity.To study Terroir at a fine scale, we developed a method based on a very high spatial r…

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Mise en évidence de structures anthropiques gallo-romaines sur le versant viticole de la Côte de Beaune et de leur influence sur les sols. Exemple du lieu-dit de « l’Ile des Hautes Vergelesses » (Pernand-Vergelesses, Côte d’Or)

International audience

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Structures en pierre du plateau du Châtillonnais (Côte-d'Or) : du Hallstatt à l'Antiquité tardive : l'apport de l'archéologie forestière

International audience

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Typologie des enclos dans les forêts du Châtillonnais (Côte d'Or)

Alors que de nombreux parcellaires sous forêts sont révélés par le Lidar et le plus souvent attribués à la période gallo-romaine, les parcellaires du Châtillonnais étudiés à travers les habitats par différents moyens ( relevés GPS, indices Lidar et prospections pédestres) donnent des indices d'une occupation plus ancienne. Ces habitats appréhendés par les structures externes en élévation se répartissent en groupes distincts par la forme de l'enclos qui les entourent, la présence ou non d'une construction en pierres. Pour une partie des enclos de forme quadrangulaire, la spécificité du matériel recueilli oriente vers une fonction cultuelle.

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Cartographie de la diversité des sols viticoles de versant par imagerie à haute résolution : contribution à la connaissance des terroirs

The Burgundian vineyard hillslopes (Côte-d’Or, France) exhibit a high diversity of soils resulting from the combination of several natural and anthropogenic factors acting at various spatio-temporal scales. The soil types have major role in viticulture, since they partly determine wine-growing quality. However, soil undergoes important degradation caused by hydric erosion and vineyard management practices. To control this soil heritage for a sustained viticulture in Côte-d’Or, a better knowledge of soil is necessary. The objectives of this work is to characterise vineyard soils and to identify the factors governing their diversity using an interdisciplinary approach crossing geology, geomor…

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Mapping soil and substratum at a very high spatial resolution in the hillslope of Couchey (France)

International audience; In this work, we present a method based on very high spatial resolution (VHSR) aerial images acquired in the visible domain and that map soil surface diversity at the hillslope scale with a spatial resolution of a few centimeters. This method combines aerial VHSR image classification with local soil sampling. Principal component analysis (PCA) and non-supervised classification was performed on image characteristics to define soil surface characteristic classes (SSC). Then soil surface mapping was combined with soil surface descriptions and soil profiles to define soil types by physical and chemical characteristics. As soil results from parent material alteration, ide…

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L’archéologie forestière dans le Châtillonnais de la prospection pédestre aux relevés LiDAR

National audience

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