File:Innoko NWR collapse scar bogs.jpg
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Innoko_NWR_collapse_scar_bogs.jpg (640 × 480 pixels, file size: 211 KB, MIME type: image/jpeg)
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English: Collapse-scar bogs at Innoko National Wildlife Refuge, Alaska, USA. September, 2012. When permafrost thaws, the ground surface subsides and becomes inundated and the black spruce forest growing on the permafrost can no longer survive. Trees teetering and falling over in thawing permafrost are often referred to as "drunken trees." The black spruce forest is replaced by a saturated bog, dominated by sedges and mosses. This wholesale ecological transformation has large impacts on carbon cycling. |
| Date | |
| Source | http://gallery.usgs.gov/photos/01_10_2014_uYPc62Err4_01_10_2014_0#.UuX26_fTnrd |
| Author | Photographer: Miriam Jones, U.S. Geological Survey |
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:06, 27 January 2014 | | 640 × 480 (211 KB) | Tortie tude (talk | contribs) | User created page with UploadWizard |
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