File:Étang, tourbières et boulaies de Machais - Cliché Vosagus 27-05-2008.JPG
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[edit]DescriptionÉtang, tourbières et boulaies de Machais - Cliché Vosagus 27-05-2008.JPG |
Français : Le cirque de Machais abrite une des rares tourbières lacustres d'Europe occidentale encore presque intactes.
Le radeau tourbeux (Schwingrasenmoor) occupe la partie sud-est de l'Étang de Machais. Le cliché montre une mosaïque de mardelles à Scheuchzéries des marais et de buttes flottantes couvertes de banquettes de sphaignes. L'ensemble est entouré par des lambeaux de tourbières hautes piquées d'Andromèded à feuilles de Polium (Pseudohochmoore), des tourbières de pente (Hangmoore) et des boulaies sur tourbe. Cette dépression d'origine glaciaire est encore active en termes de géomorphologie : retournement périodique d’îlots flottants de tourbe du fait de la méthanisation et rehaussement sur plusieurs siècles du plan d'eau quand l'effluent (Goutte de Machais) est barré en aval par l'activité d'un cône de déjection descendu de la Walsche. Réserve naturelle gérée par le Parc naturel régional des Ballons des Vosges. Attention, un arrêté interdit la fréquentation de la tourbière centrale. Cliché Vosagus 27-05-2008Deutsch: Machais mit Karsee, Schwingrasenmoor und Birkenwald - Hoch Vogesen, Frankreich English: Lake and quagmire of Machais - Highest Vosges mountains, France |
Date | |
Source | Own work |
Author | Vosagus |
Réserve Naturelle de l'Étang de Machais - commune de LA BRESSE - Département des Vosges - Région Lorraine - FRANCE
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:51, 30 May 2015 | 3,872 × 2,592 (3.94 MB) | Vosagus (talk | contribs) | User created page with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | PENTAX Corporation |
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Camera model | PENTAX K10D |
Exposure time | 1/500 sec (0.002) |
F-number | f/11 |
ISO speed rating | 560 |
Date and time of data generation | 14:41, 27 May 2008 |
Lens focal length | 70 mm |
Image title | Tourbière de l'Étang de Machais - Tourbière tremblante acidiphile, lac de cirque & boulaie sur tourbe - Réserve Naturelle de Machais - commune de LA BRESSE - Dépt. VOSGES - Cliché 27/05/2008 |
Software used | Picasa 3.0 |
File change date and time | 14:41, 27 May 2008 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 14:41, 27 May 2008 |
Meaning of each component |
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APEX exposure bias | 0 |
Metering mode | Spot |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Unique image ID | 3f19e4da655318a57ab840f104673484 |
Keywords |
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