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Activity Number:
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343
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Type:
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Contributed
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Date/Time:
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Tuesday, July 31, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Statistics and the Environment
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| Abstract - #309367 |
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Title:
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Assessment of Plant Communities Exposed to Fugitive Dust Along a Mine Transportation Corridor in Alaska
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Author(s):
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Melanie Edwards*+ and Elizabeth Maier and Dawn Reeder and Scott S. Shock and Nicholas Gard
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Companies:
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Exponent, Inc. and Exponent, Inc. and Rare Earth Science and Exponent, Inc. and Exponent, Inc.
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Address:
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15375 SE 30th Place, Bellevue, WA, 98007,
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Keywords:
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Vegetation community ; Dust impact ; Multivariate statistics ; Metals
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Abstract:
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Tundra plant communities in northwestern Alaska were surveyed to characterize the community composition along a haul road from the Red Dog mine to a Chukchi Sea port. Sampling was conducted generally at 10, 100, and 1,000 meters from the road, with 10 microplots per station. The number of species present and percent cover were measured. Collocated soil samples were analyzed to relate to the plant community. Several statistical approaches were used to evaluate the influence of the road on the vegetation community. Results indicated that plant community characteristics vary with distance from the road, with stations furthest from the road similar to their respective reference communities. Metals toxicity as well as physical/chemical stresses typically associated with gravel roads in tundra environments may have contributed to differences observed in plant communities near the road.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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