Title

Modeling interactive effects of climate change, air pollution, and fire on a California Shrubland

Document Type

Article

Peer Reviewed

1

Publication Date

6-1-1991

Journal/Book/Conference Title

Climatic Change

Start Page

363

End Page

376

Abstract

A computer simulation model (FINICS) was used to project the interactive effects of CO2-induced climate change on a drought-deciduous shrubland. FINICS simulates the competitive relations of five dominant shrub species of Californian coastal sage scrub, based on their aboveground growth and reproductive behavior. The model was used to simulate the separate and combined effects of altered precipitation, temperature, ambient ozone levels, and fuel loads and fire intensity, on species composition. Both growth chamber and field data were used to parameterize the model. Projections show that changes attributed to climate variation alone were markedly accentuated when the indirect effects of climate change on fire intensity and ozone pollution were considered. Model results emphasized that change in community composition will result from shifting competitive abilities of individual species under the changed environmental conditions. While neither all of the secondary effects of climate change nor all possible species were included in the model, the projections suggest that inclusion of secondary interactions and species competition will be important in predicting vegetation change realistically.

Keywords

Sustainability

Published Article/Book Citation

Climatic Change, 18:4 (1991) pp.363-376.

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URL

https://ir.uiowa.edu/geog_pubs/138