Photoperiod and Nitrogen Supply Limit the Scope of Northward Migration and Seed Transfer of Black Spruce in a Future Climate Associated with Doubled Atmospheric CO2 Concentration
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53378#.VMBrKCzQrzE Author(s) Junlin Li 1 , Qing-Lai Dang 1* , Rongzhou Man 2 Affiliation(s) 1 Faculty of Natural Resources Management, Lakehead University, Thunder Bay, Canada . 2 Ontario Ministry of Natural Resources, Ontario Forest Research Institute, Sault Ste. Marie, Canada . ABSTRACT The predicated changes in precipitation and temperature associated with the continued elevation of atmospheric CO2 concentration will trigger the northward shift of the Climate Envelopes for 130 North America tree species by as much as 10 degrees. However, climate envelope models do not take into account changes in other factors that may also influence the survival and growth of plants at the predicted new locations, such as photoperiod and nutrient regimes. This study investigated how photoperiod and nitrogen supply would affect the ecophysiological traits ...