What could have caused pre-industrial biomass burning emissions to exceed current rates?
Recent studies based on trace gas mixing ratios in ice cores and charcoal data indicate that biomass burning emissions over the past millennium exceeded contemporary emissions by up to a factor of 4 for certain time periods. This is surprising because various sources of biomass burning are linked wi...
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ftunivwagenin:oai:library.wur.nl:wurpubs/444542 2024-02-04T10:01:12+01:00 What could have caused pre-industrial biomass burning emissions to exceed current rates? van der Werf, G.R. Peters, W. van Leeuwen, T.T. Giglio, L. 2013 application/pdf https://research.wur.nl/en/publications/what-could-have-caused-pre-industrial-biomass-burning-emissions-t https://doi.org/10.5194/cp-9-289-2013 en eng https://edepot.wur.nl/282430 https://research.wur.nl/en/publications/what-could-have-caused-pre-industrial-biomass-burning-emissions-t doi:10.5194/cp-9-289-2013 info:eu-repo/semantics/openAccess Wageningen University & Research Climate of the Past 9 (2013) 1 ISSN: 1814-9324 20th-century amazonian forests carbon climate land-use model tm5 past 2 millennia rain-forest fires southern africa trace gases info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2013 ftunivwagenin https://doi.org/10.5194/cp-9-289-2013 2024-01-10T23:20:50Z Recent studies based on trace gas mixing ratios in ice cores and charcoal data indicate that biomass burning emissions over the past millennium exceeded contemporary emissions by up to a factor of 4 for certain time periods. This is surprising because various sources of biomass burning are linked with population density, which has increased over the past centuries. We have analysed how emissions from several landscape biomass burning sources could have fluctuated to yield emissions that are in correspondence with recent results based on ice core mixing ratios of carbon monoxide (CO) and its isotopic signature measured at South Pole station (SPO). Based on estimates of contemporary landscape fire emissions and the TM5 chemical transport model driven by present-day atmospheric transport and OH concentrations, we found that CO mixing ratios at SPO are more sensitive to emissions from South America and Australia than from Africa, and are relatively insensitive to emissions from the Northern Hemisphere. We then explored how various landscape biomass burning sources may have varied over the past centuries and what the resulting emissions and corresponding CO mixing ratio at SPO would be, using population density variations to reconstruct sources driven by humans (e.g., fuelwood burning) and a new model to relate savanna emissions to changes in fire return times. We found that to match the observed ice core CO data, all savannas in the Southern Hemisphere had to burn annually, or bi-annually in combination with deforestation and slash and burn agriculture exceeding current levels, despite much lower population densities and lack of machinery to aid the deforestation process. While possible, these scenarios are unlikely and in conflict with current literature. However, we do show the large potential for increased emissions from savannas in a pre-industrial world. This is mainly because in the past, fuel beds were probably less fragmented compared to the current situation; satellite data indicates that the majority of ... Article in Journal/Newspaper ice core South pole Wageningen UR (University & Research Centre): Digital Library South Pole Climate of the Past 9 1 289 306 |
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Wageningen UR (University & Research Centre): Digital Library |
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ftunivwagenin |
language |
English |
topic |
20th-century amazonian forests carbon climate land-use model tm5 past 2 millennia rain-forest fires southern africa trace gases |
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20th-century amazonian forests carbon climate land-use model tm5 past 2 millennia rain-forest fires southern africa trace gases van der Werf, G.R. Peters, W. van Leeuwen, T.T. Giglio, L. What could have caused pre-industrial biomass burning emissions to exceed current rates? |
topic_facet |
20th-century amazonian forests carbon climate land-use model tm5 past 2 millennia rain-forest fires southern africa trace gases |
description |
Recent studies based on trace gas mixing ratios in ice cores and charcoal data indicate that biomass burning emissions over the past millennium exceeded contemporary emissions by up to a factor of 4 for certain time periods. This is surprising because various sources of biomass burning are linked with population density, which has increased over the past centuries. We have analysed how emissions from several landscape biomass burning sources could have fluctuated to yield emissions that are in correspondence with recent results based on ice core mixing ratios of carbon monoxide (CO) and its isotopic signature measured at South Pole station (SPO). Based on estimates of contemporary landscape fire emissions and the TM5 chemical transport model driven by present-day atmospheric transport and OH concentrations, we found that CO mixing ratios at SPO are more sensitive to emissions from South America and Australia than from Africa, and are relatively insensitive to emissions from the Northern Hemisphere. We then explored how various landscape biomass burning sources may have varied over the past centuries and what the resulting emissions and corresponding CO mixing ratio at SPO would be, using population density variations to reconstruct sources driven by humans (e.g., fuelwood burning) and a new model to relate savanna emissions to changes in fire return times. We found that to match the observed ice core CO data, all savannas in the Southern Hemisphere had to burn annually, or bi-annually in combination with deforestation and slash and burn agriculture exceeding current levels, despite much lower population densities and lack of machinery to aid the deforestation process. While possible, these scenarios are unlikely and in conflict with current literature. However, we do show the large potential for increased emissions from savannas in a pre-industrial world. This is mainly because in the past, fuel beds were probably less fragmented compared to the current situation; satellite data indicates that the majority of ... |
format |
Article in Journal/Newspaper |
author |
van der Werf, G.R. Peters, W. van Leeuwen, T.T. Giglio, L. |
author_facet |
van der Werf, G.R. Peters, W. van Leeuwen, T.T. Giglio, L. |
author_sort |
van der Werf, G.R. |
title |
What could have caused pre-industrial biomass burning emissions to exceed current rates? |
title_short |
What could have caused pre-industrial biomass burning emissions to exceed current rates? |
title_full |
What could have caused pre-industrial biomass burning emissions to exceed current rates? |
title_fullStr |
What could have caused pre-industrial biomass burning emissions to exceed current rates? |
title_full_unstemmed |
What could have caused pre-industrial biomass burning emissions to exceed current rates? |
title_sort |
what could have caused pre-industrial biomass burning emissions to exceed current rates? |
publishDate |
2013 |
url |
https://research.wur.nl/en/publications/what-could-have-caused-pre-industrial-biomass-burning-emissions-t https://doi.org/10.5194/cp-9-289-2013 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
ice core South pole |
genre_facet |
ice core South pole |
op_source |
Climate of the Past 9 (2013) 1 ISSN: 1814-9324 |
op_relation |
https://edepot.wur.nl/282430 https://research.wur.nl/en/publications/what-could-have-caused-pre-industrial-biomass-burning-emissions-t doi:10.5194/cp-9-289-2013 |
op_rights |
info:eu-repo/semantics/openAccess Wageningen University & Research |
op_doi |
https://doi.org/10.5194/cp-9-289-2013 |
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Climate of the Past |
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