<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Kade, A.</style></author><author><style face="normal" font="default" size="100%">Romanovsky , V.E.</style></author><author><style face="normal" font="default" size="100%">Walker, D. A.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The N-factor of nonsorted circles along a climate gradient in Arctic Alaska</style></title><secondary-title><style face="normal" font="default" size="100%">PERMAFROST AND PERIGLACIAL PROCESSES</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Permafrost Periglac</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">active-layer thickness</style></keyword><keyword><style  face="normal" font="default" size="100%">arctic tundra</style></keyword><keyword><style  face="normal" font="default" size="100%">bioclimate gradient</style></keyword><keyword><style  face="normal" font="default" size="100%">discontinuous permafrost</style></keyword><keyword><style  face="normal" font="default" size="100%">kuparuk river basin</style></keyword><keyword><style  face="normal" font="default" size="100%">plant cover</style></keyword><keyword><style  face="normal" font="default" size="100%">snow characteristics</style></keyword><keyword><style  face="normal" font="default" size="100%">soil temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">soils</style></keyword><keyword><style  face="normal" font="default" size="100%">temperature</style></keyword><keyword><style  face="normal" font="default" size="100%">thaw</style></keyword><keyword><style  face="normal" font="default" size="100%">thaw depth</style></keyword><keyword><style  face="normal" font="default" size="100%">tundra</style></keyword><keyword><style  face="normal" font="default" size="100%">USA</style></keyword><keyword><style  face="normal" font="default" size="100%">vegetation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2006</style></year><pub-dates><date><style  face="normal" font="default" size="100%">Oct-Dec</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">&lt;Go to ISI&gt;://000243043200001</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">4</style></number><volume><style face="normal" font="default" size="100%">17</style></volume><pages><style face="normal" font="default" size="100%">279-289</style></pages><isbn><style face="normal" font="default" size="100%">1045-6740</style></isbn><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">Three study sites were selected on zonal sites from north to south along a climate gradient in Arctic Alaska. Air and mineral soil surface temperatures of nonsorted circles and adjacent well-vegetated tundra plots were monitored from September 2003 through September 2004, and the depths of vegetation, soil organic horizons and snow were measured. N-factors, the ratio of ground-surface temperature to air temperature, were determined for the summer and winter seasons. N-factors and thaw depths were greater for relatively barren nonsorted circles than for adjacent well-vegetated tundra. Along the climate gradient, the thickness of vegetation, soil organic layer and snow increased from north to south, while n-factors and thaw depths decreased at bare circles from 1.43 +/- 0.02 to 0.74 +/- 0.01 and from 81.2 +/- 1.4 cm to 59.5 +/- 2.4 cm, respectively, and at the tundra from 0.99 +/- 10.02 to 0.17 +/- 0.01 and from 62.6 +/- 1.4 cm to 21.0 +/- 2.8 cm, respectively. Copyright (C) 2006 John Wiley &amp; Sons, Ltd.</style></abstract><accession-num><style face="normal" font="default" size="100%">ISI:000243043200001</style></accession-num><notes><style face="normal" font="default" size="100%">119VUTimes Cited:12Cited References Count:26</style></notes><auth-address><style face="normal" font="default" size="100%">Kade, AUniv Alaska Fairbanks, Dept Biol &amp; Wildlife, 211 Irving I, Fairbanks, AK 99775 USAUniv Alaska Fairbanks, Dept Biol &amp; Wildlife, 211 Irving I, Fairbanks, AK 99775 USAUniv Alaska Fairbanks, Dept Biol &amp; Wildlife, Fairbanks, AK 99775 USAUniv Alaska Fairbanks, Inst Geophys, Fairbanks, AK USAUniv Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK USA</style></auth-address></record></records></xml>