Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe
Fire is a major disturbance agent in the boreal forest, influencing many current and future ecosystem conditions and services. Surprisingly few studies have attempted to improve the accuracy of fire-event reconstructions even though the estimates of the occurrence of past fires may be biased, influe...
Published in: | The Holocene |
---|---|
Main Authors: | , , , , , , , , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SAGE Publications
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1177/0959683619854524 https://journals.sagepub.com/doi/pdf/10.1177/0959683619854524 https://journals.sagepub.com/doi/full-xml/10.1177/0959683619854524 |
id |
crsagepubl:10.1177/0959683619854524 |
---|---|
record_format |
openpolar |
spelling |
crsagepubl:10.1177/0959683619854524 2024-10-13T14:07:10+00:00 Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe Stivrins, Normunds Aakala, Tuomas Ilvonen, Liisa Pasanen, Leena Kuuluvainen, Timo Vasander, Harri Gałka, Mariusz Disbrey, Helena R Liepins, Janis Holmström, Lasse Seppä, Heikki Eesti Teadusagentuur Eesti Teadusagentuur European Cooperation in Science and Technology Latvijas Universitate Latvijas Zinātnes Padome Suomen Akatemia Suomen Akatemia Suomen Akatemia Koneen Säätiö 2019 http://dx.doi.org/10.1177/0959683619854524 https://journals.sagepub.com/doi/pdf/10.1177/0959683619854524 https://journals.sagepub.com/doi/full-xml/10.1177/0959683619854524 en eng SAGE Publications https://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 29, issue 9, page 1480-1490 ISSN 0959-6836 1477-0911 journal-article 2019 crsagepubl https://doi.org/10.1177/0959683619854524 2024-10-01T04:09:43Z Fire is a major disturbance agent in the boreal forest, influencing many current and future ecosystem conditions and services. Surprisingly few studies have attempted to improve the accuracy of fire-event reconstructions even though the estimates of the occurrence of past fires may be biased, influencing the reliability of the models employing those data (e.g. C stock, cycle). This study aimed to demonstrate how three types of fire proxies – fire scars from tree rings, sedimentary charcoal and, for the first time in this context, fungal spores of Neurospora – can be integrated to achieve a better understanding of past fire dynamics. By studying charcoal and Neurospora from sediment cores from forest hollows, and the fire scars from tree rings in their surroundings in the southern Fennoscandian and western Russian boreal forest, we produced composite fire-event data sets and fire-event frequencies, and estimated fire return intervals. Our estimates show that the fire return interval varied between 126 and 237 years during the last 11,000 years. The highest fire frequency during the 18th–19th century can be associated with the anthropogenic influence. Importantly, statistical tests revealed a positive relationship between other fire event indicators and Neurospora occurrence allowing us to pinpoint past fire events at times when the sedimentary charcoal was absent, but Neurospora were abundant. We demonstrated how fire proxies with different temporal resolution can be linked, providing potential improvements in the reliability of fire history reconstructions from multiple proxies. Article in Journal/Newspaper Fennoscandian SAGE Publications The Holocene 29 9 1480 1490 |
institution |
Open Polar |
collection |
SAGE Publications |
op_collection_id |
crsagepubl |
language |
English |
description |
Fire is a major disturbance agent in the boreal forest, influencing many current and future ecosystem conditions and services. Surprisingly few studies have attempted to improve the accuracy of fire-event reconstructions even though the estimates of the occurrence of past fires may be biased, influencing the reliability of the models employing those data (e.g. C stock, cycle). This study aimed to demonstrate how three types of fire proxies – fire scars from tree rings, sedimentary charcoal and, for the first time in this context, fungal spores of Neurospora – can be integrated to achieve a better understanding of past fire dynamics. By studying charcoal and Neurospora from sediment cores from forest hollows, and the fire scars from tree rings in their surroundings in the southern Fennoscandian and western Russian boreal forest, we produced composite fire-event data sets and fire-event frequencies, and estimated fire return intervals. Our estimates show that the fire return interval varied between 126 and 237 years during the last 11,000 years. The highest fire frequency during the 18th–19th century can be associated with the anthropogenic influence. Importantly, statistical tests revealed a positive relationship between other fire event indicators and Neurospora occurrence allowing us to pinpoint past fire events at times when the sedimentary charcoal was absent, but Neurospora were abundant. We demonstrated how fire proxies with different temporal resolution can be linked, providing potential improvements in the reliability of fire history reconstructions from multiple proxies. |
author2 |
Eesti Teadusagentuur Eesti Teadusagentuur European Cooperation in Science and Technology Latvijas Universitate Latvijas Zinātnes Padome Suomen Akatemia Suomen Akatemia Suomen Akatemia Koneen Säätiö |
format |
Article in Journal/Newspaper |
author |
Stivrins, Normunds Aakala, Tuomas Ilvonen, Liisa Pasanen, Leena Kuuluvainen, Timo Vasander, Harri Gałka, Mariusz Disbrey, Helena R Liepins, Janis Holmström, Lasse Seppä, Heikki |
spellingShingle |
Stivrins, Normunds Aakala, Tuomas Ilvonen, Liisa Pasanen, Leena Kuuluvainen, Timo Vasander, Harri Gałka, Mariusz Disbrey, Helena R Liepins, Janis Holmström, Lasse Seppä, Heikki Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
author_facet |
Stivrins, Normunds Aakala, Tuomas Ilvonen, Liisa Pasanen, Leena Kuuluvainen, Timo Vasander, Harri Gałka, Mariusz Disbrey, Helena R Liepins, Janis Holmström, Lasse Seppä, Heikki |
author_sort |
Stivrins, Normunds |
title |
Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
title_short |
Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
title_full |
Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
title_fullStr |
Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
title_full_unstemmed |
Integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern Europe |
title_sort |
integrating fire-scar, charcoal and fungal spore data to study fire events in the boreal forest of northern europe |
publisher |
SAGE Publications |
publishDate |
2019 |
url |
http://dx.doi.org/10.1177/0959683619854524 https://journals.sagepub.com/doi/pdf/10.1177/0959683619854524 https://journals.sagepub.com/doi/full-xml/10.1177/0959683619854524 |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_source |
The Holocene volume 29, issue 9, page 1480-1490 ISSN 0959-6836 1477-0911 |
op_rights |
https://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683619854524 |
container_title |
The Holocene |
container_volume |
29 |
container_issue |
9 |
container_start_page |
1480 |
op_container_end_page |
1490 |
_version_ |
1812813449475915776 |