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Effects of fire and CO2 on biogeography and primary production in glacial and modern climates
File | Description | Size | Format | ||
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MS_NewPhyt_03052015_corrected.docx | Accepted version | 190.27 kB | Microsoft Word | View/Open | |
Fig1-biome_maps.pdf | Accepted version | 333.64 kB | Adobe PDF | View/Open | |
table1.docx | Accepted version | 92.86 kB | Microsoft Word | View/Open | |
table2.eps | Accepted version | 804.4 kB | Postscript | View/Open | |
Title: | Effects of fire and CO2 on biogeography and primary production in glacial and modern climates |
Authors: | Calvo, MM Prentice, IC |
Item Type: | Journal Article |
Abstract: | Dynamic global vegetation models (DGVMs) can disentangle causes and effects in the control of vegetation and fire. We used a DGVM to analyse climate, CO2 and fire influences on biome distribution and net primary production (NPP) in last glacial maximum (LGM) and pre-industrial (PI) times. The Land surface Processes and eXchanges (LPX) DGVM was run in a factorial design with fire ‘off’ or ‘on’, CO2 at LGM (185 ppm) or PI (280 ppm) concentrations, and LGM (modelled) or recent climates. Results were analysed by Stein–Alpert decomposition to separate primary effects from synergies. Fire removal causes forests to expand and global NPP to increase slightly. Low CO2 greatly reduces forest area (dramatically in a PI climate; realistically under an LGM climate) and global NPP. NPP under an LGM climate was reduced by a quarter as a result of low CO2. The reduction in global NPP was smaller at low temperatures, but greater in the presence of fire. Global NPP is controlled by climate and CO2 directly through photosynthesis, but also through biome distribution, which is strongly influenced by fire. Future vegetation simulations will need to consider the coupled responses of vegetation and fire to CO2 and climate. |
Issue Date: | 29-May-2015 |
Date of Acceptance: | 30-Apr-2015 |
URI: | http://hdl.handle.net/10044/1/56840 |
DOI: | https://dx.doi.org/10.1111/nph.13485 |
ISSN: | 0028-646X |
Publisher: | Wiley |
Start Page: | 987 |
End Page: | 994 |
Journal / Book Title: | New Phytologist |
Volume: | 208 |
Issue: | 3 |
Copyright Statement: | This is the peer reviewed version of the following article: Martin Calvo, M. and Prentice, I. C. (2015), Effects of fire and CO2 on biogeography and primary production in glacial and modern climates. New Phytol, 208: 987–994. , which has been published in final form at https://dx.doi.org/10.1111/nph.13485. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving. |
Sponsor/Funder: | Commission of the European Communities AXA Research Fund |
Funder's Grant Number: | 238366 AXA Chair Programme in Biosphere and Climate Impacts |
Keywords: | Science & Technology Life Sciences & Biomedicine Plant Sciences biomass burning climate change CO2 fertilization fire fire-climate-CO2 interactions fuel primary production vegetation distribution GLOBAL VEGETATION MODELS CARBON-CYCLE FEEDBACKS LOW ATMOSPHERIC CO2 GROWTH-RESPONSES EARTH SYSTEM TEMPERATURE EMISSIONS FUTURE DISTRIBUTIONS SIMULATIONS Carbon Dioxide Climate Change Ecosystem Fires Ice Cover Models, Theoretical 06 Biological Sciences 07 Agricultural And Veterinary Sciences Plant Biology & Botany |
Publication Status: | Published |
Appears in Collections: | Department of Life Sciences Grantham Institute for Climate Change Faculty of Natural Sciences |