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Figure 1. Percentage of the PNW deemed suitable for P. ponderosa
based on diagnostic criteria and simulations with 3-PG on
the historical and future climatic sequence, summarized by
decade

Figure 2. Cumulative predictions of P.
ponderosa distribution in eastern Oregon and Washington over
the last and current century. Areas of black indicate where
P. ponderosa would be expected to sustain dominance; areas
in white indicate where other species should be more competitive.

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