Pyrogeographic models, feedbacks and the future of global fire regimes

David Bowman, Brett Murphy, Grant James Williamson, Mark Cochrane

Research output: Contribution to journalComment/debate

Abstract

Conceptual and phenomenological macroecological models of current global fire activity have demonstrated the overwhelming control exerted by primary productivity. Fire activity is very high in savanna regions with intermediate primary productivity, and very low in both densely forested regions with high productivity and arid/cold regions with low productivity. However, predicting future global fire activity using such macroecological models of fire's global ‘niche’ may not be possible because of the feedbacks between fire, climate and vegetation that underpin the fire−productivity relationship. Improving forecasts of global fire activity demands the use of dynamic models to determine how climate, CO2, vegetation (i.e. canopy closure and plant functional types) and primary productivity constrain fire and evaluation of the strength of feedbacks amongst these variables.
Original languageEnglish
Pages (from-to)821-824
Number of pages4
JournalGlobal Ecology and Biogeography
Volume23
Issue number7
Early online date20 Apr 2014
DOIs
Publication statusPublished - Jul 2014
Externally publishedYes

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