Incorporating the effects of changes in vegetation functioning and CO 2 on water availability in plant habitat models
- 29 July 2008
- journal article
- research article
- Published by The Royal Society in Biology Letters
- Vol. 4 (5), 556-559
- https://doi.org/10.1098/rsbl.2008.0105
Abstract
The direct effects of CO(2) level changes on plant water availability are usually ignored in plant habitat models. We compare traditional proxies for water availability with changes in soil water (fAWC) predicted by a process-based ecosystem model, which simulates changes in vegetation structure and functioning, including CO(2) physiological effects. We modelled current and future habitats of 108 European tree species using ensemble forecasting, comprising six habitat models, two model evaluation methods and two climate change scenarios. The fAWC models' projections are generally more conservative. Potential habitats shrink significantly less for boreo-alpine and alpine species. Changes in vegetation functioning and CO(2) on plant water availability should therefore be taken into account in plant habitat change projections.Keywords
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