By F. Stuart Chapin, Mark W. Oswood, Keith van Cleve, Leslie A. Viereck, David L. Verbyla
The boreal woodland is the northern-most wooded area biome, whose normal historical past is rooted within the impression of low temperature and high-latitude. Alaska's boreal wooded area is now warming as speedily because the remainder of Earth, offering an unparalleled examine how this cold-adapted, fire-prone woodland adjusts to alter. This quantity synthesizes present figuring out of the ecology of Alaska's boreal forests and describes their exact positive aspects within the context of circumpolar and worldwide styles. It tells how fireplace and weather contributed to the biome's present dynamics. As weather warms and permafrost (permanently frozen flooring) thaws, the boreal woodland can be at the cusp of an incredible switch in nation. The editors have accrued a striking set of individuals to debate this fast environmental and biotic transformation. Their chapters hide the homes of the wooded area, the adjustments it truly is present process, and the demanding situations those adjustments current to boreal woodland managers. within the first part, the reader can take up the geographic and old context for figuring out the boreal woodland. The e-book then delves into the dynamics of plant and animal groups inhabiting this wooded area, and the biogeochemical techniques that hyperlink those organisms. within the final part the authors discover panorama phenomena that function at greater temporal and spatial scales and integrates the tactics defined in prior sections. a lot of the study on which this e-book relies effects from the Bonanza Creek long term Ecological examine application. here's a synthesis of the significant literature on Alaska's boreal wooded area that are supposed to be available to expert ecologists, scholars, and the public.
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Additional info for Alaska's Changing Boreal Forest (The Long-Term Ecological Research Network Series)
Continuous late Quaternary proxy climate records from loess in Beringia. Quaternary Science Reviews 20:63–71. , and D. Hawkins. 1989. Influence of orbital parameters on Pleistocene loess deposition in central Alaska. Nature 337:151–153. , and M. Keskinen. 2003. Trace element geochemistry of individual glass shards of the Old Crow Tephra and the age of the Delta Glaciation, central Alaska. Quaternary Research 60:63–69. , M. Edwards, D. Hopkins, M. Keskinen, and G. Kukla. 1991. Old crow tephra found at the Palisades of the Yukon.
Soil fauna contribute not only to the transformation of SOM but also to its transport, especially along the south-facing river bluffs, through the creation of channels or burrows. Nowhere else in the world can human activities impact soil formation as in the boreal and arctic regions. The reason? Once the surface vegetation is removed due to farming, urban development, human-caused fire, or any other disturbance, the soil loses its insulation and warms. As a result of warming, the underlying permafrost thaws, soil drainage improves, biogeochemical processes are accelerated, and the soils are no longer classified as Gelisols (permafrost-dominated soils).
Analysis of late quaternary soils and sediments in the Nenana Valley, central Alaska. A. Thesis. University of Alaska Fairbanks. Brannen, K. , and D. K. Swanson. 2001. Soil Survey of Kantishna Area, Alaska. S. Dept. of Agriculture, Natural Resources Conservation Service. Palmer, AK. Bridgham, S. , C. L. Ping, J. L. Richardson, and K. Updegraff. 2001. Soils of northern peatlands: Histosols and Gelisols. Pages 371–382 in J. L. Richardson and M. J. Vepraska, editors. Wetland Soils: Genesis, Hydrology, Landscapes and Classification.
Alaska's Changing Boreal Forest (The Long-Term Ecological Research Network Series) by F. Stuart Chapin, Mark W. Oswood, Keith van Cleve, Leslie A. Viereck, David L. Verbyla