NIGEC

Figures 1-4 present results of the National Institute for Global Environmental Change Midwestern Regional Center­funded research designed to model the effect of carbon dioxide-induced climate change on fifty-seven tree species in the five-state Midwestern Great Lakes region. Here, possible effects on shagbark hickory (Carya ovata) in Indiana are displayed. Figure 1 shows forested areas for Indiana in 1981. Figure 2 depicts the initial shagbark hickory population. Model predictions of this species' population in the year 2060 in an unchanged environment are presented in Figure 3. Figure 4 shows the species' population in the same area in an altered climate. This research project was directed by J. C. Randolph, Professor of Public and Enivornmental Affairs, Indiana University Bloomington.


NIGEC

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