Climate Modeling Shows Significant Shifts In 21st Century Pacific Northwest Coastal Forest Vegetation

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A changing climate in the 21st century will significantly alter the coastal forests of the Pacific Northwest, according to modeling by Oregon State University researchers.

A changing climate in the 21st century will significantly alter the coastal forests of the Pacific Northwest, according to modeling by Oregon State University researchers.

Vegetation is projected to change from predominantly conifer to predominantly mixed conifer and hardwood forests, according to modeling results in a study published in the journal PLOS ONE.

Much of the current forests can be expected to eventually be replaced by trees better adapted to future conditions, according to the MC2 Dynamic Global Vegetation Model focusing on the Pacific Northwest west of the Cascade crest.

Widespread maladaptation could lead to plant mortality, which would reduce timber available for harvest. An increase in hardwoods could result in a decline of mature evergreen trees for harvest, according to the study authors. Projected impacts on forests could affect fresh water supplies, wildlife habitat quality, and recreation. It is reasonable to anticipate that climate-driven stress will make these forests more susceptible to disease and pests, the authors wrote.

Read more at Oregon State University

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