At the main plot level, we used regression analysis to determine
relationships between residual BA and resources variables measured
in each year (GLI, soil moisture, soil temperature, and foliar
nutrients). At the subplot level, we used Pearson correlation analysis
to determine relationships between longleaf pine seedling response
(annual mortality and annual RCD increment) and
resources variables measured in 2009 and 2010 (GLI, soil moisture,
soil temperature, and foliar nutrients). Assuming that GLI did not
significantly change during the three growing seasons, we related
GLI measured in 2008 to mortality and growth rates of the 2009
and 2010 growing seasons. We related foliar nutrients measured
in October 2009 and January 2011 to mortality and growth rates
of the 2009 and 2010 growing seasons, respectively. Scatterplots
and the best fit regression models were developed and processed
in SigmaPlot 9.0 (SYSTAT Software Inc., 2004).
At the main plot level, we used regression analysis to determinerelationships between residual BA and resources variables measuredin each year (GLI, soil moisture, soil temperature, and foliarnutrients). At the subplot level, we used Pearson correlation analysisto determine relationships between longleaf pine seedling response(annual mortality and annual RCD increment) andresources variables measured in 2009 and 2010 (GLI, soil moisture,soil temperature, and foliar nutrients). Assuming that GLI did notsignificantly change during the three growing seasons, we relatedGLI measured in 2008 to mortality and growth rates of the 2009and 2010 growing seasons. We related foliar nutrients measuredin October 2009 and January 2011 to mortality and growth ratesof the 2009 and 2010 growing seasons, respectively. Scatterplotsand the best fit regression models were developed and processedin SigmaPlot 9.0 (SYSTAT Software Inc., 2004).
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