WorldCat Identities

Myers-Smith, Isla Heather

Overview
Works: 1 works in 1 publications in 1 language and 2 library holdings
Genres: Academic theses 
Roles: Author
Classifications: GB625.A4,
Publication Timeline
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Most widely held works by Isla Heather Myers-Smith
Carbon exchange and permafrost collapse : implications for a changing climate by Isla Heather Myers-Smith( Book )

1 edition published in 2005 in English and held by 2 WorldCat member libraries worldwide

"With a warmer climate, the wetlands of Interior Alaska may experience more frequent or extensive stand-replacing fires and permafrost degradation. This, in turn may change the primary factors controlling carbon emissions. I measured carbon exchange along a moisture transect from the center of a sphagnum-dominated bog into a burned forest (2001 Survey Line Fire) on the Tanana River Floodplain. Both the bog and the surrounding burn were sinks for CO₂, and the bog was a CH₄ source in the abnormally dry summer of 2004. Thermokarst and subsiding soils were observed on the margin of the bog in the three years since the fire, increasing the anaerobic portion of the soil landscape. I observed the greatest variation in carbon fluxes in this portion of the transect. I conclude that permafrost collapse is altering the pattern of emissions from this landscape. I tracked historical changes in vegetation, hydrology and fire at this site through macrofossil, charcoal and diatom analysis of peat cores. The paleoecological record suggests that fire mediates permafrost collapse in this system. This study indicates that future changes in temperature and precipitation will alter carbon cycling and vegetation patterns across this boreal landscape"--Leaf iii
 
Audience Level
0
Audience Level
1
  General Special  
Audience level: 0.59 (from 0.59 for Carbon exc ... to 0.59 for Carbon exc ...)

Alternative Names
Smith, Isla Heather Myers-

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