نتایج جستجو برای: کرشن krashen 1981
تعداد نتایج: 25209 فیلتر نتایج به سال:
2003
Gensuo J. Jia
Howard E. Epstein
Donald A. Walker
[1] Here we analyzed a time series of 21-yr satellite data for three bioclimate subzones in northern Alaska and confirmed a long-term trend of increase in vegetation greenness for the Alaskan tundra that has been detected globally for the northern latitudes. There was a 16.9% (±5.6%) increase in peak vegetation greenness across the region that corresponded to simultaneous increases in temperatu...
Journal:
:Bulletin of the Royal College of Psychiatrists
1981
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