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L’obtention d’images de très bonne qualité reste un objectif majeur pour toute analyse d’image. La coloration des racines pour augmenter le contraste, leur séparation pour éviter tout chevauchement, le positionnement sur le scanner sont toutes des étapes importantes pour une utilisation plus facile du logiciel WinRhizo. Toutefois nous avons dû réaliser des tests pour trouver les réglages adaptés pour analyser les images avec le logiciel. En ce qui concerne les résultats, nous obtenons une grande quantité de données à traiter, et il est impératif d’automatiser les opérations de traitements pour pouvoir se concentrer sur la numérisation, qui est la clef de tous les résultats.", "publicationTitle": "Cahier des Techniques de l'INRA", "publisher": "", "place": "", "date": "2005", "volume": "", "issue": "55", "section": "", "partNumber": "", "partTitle": "", "pages": "33-44", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "", "citationKey": "", "url": "", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "0762-7339", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "fr", "libraryCatalog": "", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "ANALYSE D'IMAGE" }, { "tag": "COLORATION" }, { "tag": "NUMERISATION" }, { "tag": "TRAIT RACINAIRE" }, { "tag": "graminé" }, { "tag": "prairie" }, { "tag": "racine" } ], "collections": [], "relations": {}, "dateAdded": "2015-06-08T14:19:20Z", "dateModified": "2015-06-08T14:19:20Z" } }, { "key": "EJCVUPBH", "version": 9, "library": { "type": "group", "id": 355856, "name": "root morpholgy & infiltration", "links": { "alternate": { "href": "https://www.zotero.org/groups/root_morpholgy__infiltration", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/355856/items/EJCVUPBH", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/root_morpholgy__infiltration/items/EJCVUPBH", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/355856/items/B8QNR2HU", "type": "application/json" } }, "meta": { "createdByUser": { "id": 567264, "username": "jnesp", "name": "Jerome Nespoulous", "links": { "alternate": { "href": "https://www.zotero.org/jnesp", "type": "text/html" } } }, "numChildren": 0 }, "data": { "key": "EJCVUPBH", "version": 9, "parentItem": "B8QNR2HU", "itemType": "note", "note": "
Saluts la roots team,
Je suis tombé là dessus dans les cahiers techniques de l'INRA :
https://www6.inra.fr/cahier_des_techniques/Les-Cahiers-en-ligne/2005/2005-Cahier-55/2005-Cahier-55-Article-3
Ça peut en intéresser certains malgré le fait que ce ne soit pas \"in situ\" ...

Bonne aprème, Merlin.

Ps: Quand j'aurai le temps (un jour), j'envisage la rédaction d'un article technique pour l'INRA sur les rhizotrons, j'aurai alors surement besoin de vos précieux conseils...

\n
-- 
Merlin RAMEL Technicien
UMR AMAP (botAnique et bioinforMatique de l'Architecture des Plantes)
- Cirad-Cnrs-Inra-Ird-Université Montpellier 2

TA A-51/PS2
Bd de la Lironde
34398 Montpellier Cedex 5
Tél Bureau 207: 04 67 61 65 42
Tél secrétariat : 33 (0)4 67 61 71 87
Fax : 04 67 61 56 68
\n
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M.", "lastName": "Nicolau" } ], "abstractNote": "Vegetation cover plays a major role in the restoration and stabilization of disturbed systems. The analysis of relationships between restored vegetation and soil hydrology has special relevance for the evaluation and operation of mining reclamation, particularly in Mediterranean-Continental environments, where climatic conditions restrict the development of continuous vegetation cover. The effect of herbaceous vegetation cover on soil hydrology was analysed by means of rainfall simulation (63 mm h− 1; 0.24 m2) in reclaimed soils derived from opencast coal mining (a non-saline and clay-loam textured spoil) in central-eastern Spain. A total of 75 simulation experiments were conducted at three different times throughout the year (late winter, summer and autumn) to control the influence of seasonal climatic fluctuations. Sediment concentrations in runoff and the runoff coefficient decreased exponentially with vegetation cover, while increases in steady infiltration rates were obtained with vegetation cover. Additional delays in runoff responses (longer time to runoff start and stabilization) and increases in the wetting front depth were observed with vegetation cover. Seasonal variations in soil surface state and moisture strongly influenced hydrological responses; although the influence of season on the analysed hydrological responses was attenuated by vegetation cover, especially in the case of infiltration rates. 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\n
\n
Papers with rainfall simulations
\n
Jerome,

\nI am sending the two papers where we used rainfall simulations. I think the most interesting for you is the 2009 where we made relationships between veg cover and infiltration properties.
\nBon courage!
\n

Luis

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