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Biosphere 2 | Desert Biome I, Gigapan, 2011. by Patrick Millard

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About This Gigapan

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Taken by
Patrick Millard Patrick Millard
Explore score
1
Size
0.83 Gigapixels
Views
855
Date added
Jun 24, 2011
Date taken
May 13, 2010
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Description

The desert was designed to simulate an arid desert scrub ecosystem in a coastal climate with erratic winter rainfall and summer drought. Excessive rain and relatively low evapotranspiration during the initial two-year closure resulted in a dense scrub invaded by grasses. Conversion to a Mediterranean scrub woodland was initiated in 1994, but subsequently climate parameters were changed to simulate more arid conditions. Current management practices are intended to favor arid-adapted species and discourage grasses with C4 photosynthetic pathways.

Soils were constructed to simulate those found in arid places ranging from immature dune sand to profiles with clay, carbonate, and salt accumulations. Mini-rhizotron viewing tubes were installed in the dune, to allow periodic observation of root growth and mesofauna. A playa was designed to simulate seasonally flooded areas where salt accumulates. This area has been almost completely overgrown by saltbushes (Atriplex cinerea). A simulated tinaja of artificial rock supports freshwater organisms that can withstand periodic desiccation.

Plant species diversity has declined since assembly, as might be expected. The substantial changes in management goals and climate, together with the loss of pollinating insects, have undoubtedly influenced extinction rates.


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Stitcher Notes

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GigaPan Stitch version 1.0.0804 (Macintosh)
Panorama size: 827 megapixels (46004 x 17984 pixels)
Input images: 190 (19 columns by 10 rows)
Field of view: 181.0 degrees wide by 70.7 degrees high (top=37.8, bottom=-33.0)
Settings:
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot G11
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2010-05-13 06:55:28 - 2010-05-13 07:22:11
Aperture: f/8
Exposure time: 0.01
ISO: 80
Focal length (35mm equiv.): 142.3 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 32.9 to 48.6 percent
Vertical overlap: 34.1 to 42.6 percent
Computer stats: 4096 MB RAM, 2 CPUs
Total time 41:06 (13 seconds per picture)
Alignment: 10:58, Projection: 2:46, Blending: 27:22
(Preview finished in 22:36)

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