| Climate change and Arctic ecosystems I: Vegetation changes north of 55 (2003) | |||||||||
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| JOURNAL GEOPHYSICAL RESEARCH VOL doi Climate change and Arctic ecosystems Vegetation changes north between the last glacial maximum mid Holocene and present Nancy Bigelow Linda Brubaker Mary Edwards Sandy Harrison Colin Prentice Patricia Anderson Andrei Andreev Patrick Bartlein Torben Christensen Wolfgang Cramer Jed Kaplan Anatoly Lozhkin Nadja Matveyeva David Murray David McGuire Volodya Razzhivin James Ritchie Benjamin Smith Donald Walker Konrad Gajewski Victoria Wolf Bjorn Holmqvist Yaeko Igarashi Konstantin Kremenetskii Aage Paus Michael Pisaric and Valentina Volkova Received May revised October accepted December published October unified scheme assign pollen samples vegetation types was used reconstruct vegetation patterns north the last glacial maximum LGM and mid Holocene years The pollen data set assembled for this purpose represents comprehensive compilation based the work many projects and research groups Five tundra types cushion forb tundra graminoid and forb tundra prostrate dwarf shrub tundra erect dwarf shrub tundra and low and high shrub tundra were distinguished and mapped the basis modern pollen surface samples The tundra forest boundary and the distributions boreal and temperate forest types today were realistically reconstructed During the mid Holocene the tundra forest boundary was north its present position some regions but the pattern this shift was strongly asymmetrical around the pole with the largest northward shift central Siberia little change Beri | |||||||||
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