Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland
Wildfires virtually disappeared from the Fennoscandian forests in the 20th century, but have left persistent legacies in forest structure. Here, I reconstructed past fires in three northern boreal landscapes (each 2 km x 2 km) from fire scars, and described the fire regime for the past 300 years. Th...
| Main Author: | |
|---|---|
| Other Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Finnish Environment Institute
2019
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10138/298938 |
| id |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/298938 |
|---|---|
| record_format |
openpolar |
| spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/298938 2024-01-07T09:41:40+01:00 Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland Aakala, Tuomas Department of Forest Sciences Forest Ecology and Management 2019-02-12T14:48:02Z 11 application/pdf http://hdl.handle.net/10138/298938 eng eng Finnish Environment Institute Unknown funder Aakala , T 2018 , ' Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland ' , Boreal Environment Research , vol. 23 , pp. 209-219 . < http://www.borenv.net/BER/ber231-6.htm > ORCID: /0000-0003-0160-6410/work/54146258 b64b61aa-1518-40b4-b2bc-6de27949f8a4 http://hdl.handle.net/10138/298938 000458689100014 other openAccess info:eu-repo/semantics/openAccess 4112 Forestry BOREAL FOREST EASTERN FINLAND RESTORATION PRINCIPLES CHARCOAL REGIMES RECORDS LAKE Article publishedVersion 2019 ftunivhelsihelda 2023-12-14T00:06:58Z Wildfires virtually disappeared from the Fennoscandian forests in the 20th century, but have left persistent legacies in forest structure. Here, I reconstructed past fires in three northern boreal landscapes (each 2 km x 2 km) from fire scars, and described the fire regime for the past 300 years. The average fire cycles (1700-1999) were 72 and 156 years in Pinus sylvestris-dominated landscapes, and 579 years in a Picea abies-dominated landscape. At the site level, the number of fires was clearly related to soil hydraulic properties. Age structures from 1800 live and dead trees showed strong cohorts associated with large fires in two of the landscapes. Although tree growth and regeneration in sub-arctic regions are considered highly climate-sensitive, fires have been a major driver of forest dynamics in these areas. Continued absence of fires will lead to considerable changes in the forest structure and species composition in the future. Peer reviewed Article in Journal/Newspaper Arctic Boreal Environment Research Fennoscandian Northern Finland HELDA – University of Helsinki Open Repository Arctic |
| institution |
Open Polar |
| collection |
HELDA – University of Helsinki Open Repository |
| op_collection_id |
ftunivhelsihelda |
| language |
English |
| topic |
4112 Forestry BOREAL FOREST EASTERN FINLAND RESTORATION PRINCIPLES CHARCOAL REGIMES RECORDS LAKE |
| spellingShingle |
4112 Forestry BOREAL FOREST EASTERN FINLAND RESTORATION PRINCIPLES CHARCOAL REGIMES RECORDS LAKE Aakala, Tuomas Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| topic_facet |
4112 Forestry BOREAL FOREST EASTERN FINLAND RESTORATION PRINCIPLES CHARCOAL REGIMES RECORDS LAKE |
| description |
Wildfires virtually disappeared from the Fennoscandian forests in the 20th century, but have left persistent legacies in forest structure. Here, I reconstructed past fires in three northern boreal landscapes (each 2 km x 2 km) from fire scars, and described the fire regime for the past 300 years. The average fire cycles (1700-1999) were 72 and 156 years in Pinus sylvestris-dominated landscapes, and 579 years in a Picea abies-dominated landscape. At the site level, the number of fires was clearly related to soil hydraulic properties. Age structures from 1800 live and dead trees showed strong cohorts associated with large fires in two of the landscapes. Although tree growth and regeneration in sub-arctic regions are considered highly climate-sensitive, fires have been a major driver of forest dynamics in these areas. Continued absence of fires will lead to considerable changes in the forest structure and species composition in the future. Peer reviewed |
| author2 |
Department of Forest Sciences Forest Ecology and Management |
| format |
Article in Journal/Newspaper |
| author |
Aakala, Tuomas |
| author_facet |
Aakala, Tuomas |
| author_sort |
Aakala, Tuomas |
| title |
Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| title_short |
Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| title_full |
Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| title_fullStr |
Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| title_full_unstemmed |
Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland |
| title_sort |
forest fire histories and tree age structures in värriö and maltio strict nature reserves, northern finland |
| publisher |
Finnish Environment Institute |
| publishDate |
2019 |
| url |
http://hdl.handle.net/10138/298938 |
| geographic |
Arctic |
| geographic_facet |
Arctic |
| genre |
Arctic Boreal Environment Research Fennoscandian Northern Finland |
| genre_facet |
Arctic Boreal Environment Research Fennoscandian Northern Finland |
| op_relation |
Unknown funder Aakala , T 2018 , ' Forest fire histories and tree age structures in Värriö and Maltio Strict Nature Reserves, northern Finland ' , Boreal Environment Research , vol. 23 , pp. 209-219 . < http://www.borenv.net/BER/ber231-6.htm > ORCID: /0000-0003-0160-6410/work/54146258 b64b61aa-1518-40b4-b2bc-6de27949f8a4 http://hdl.handle.net/10138/298938 000458689100014 |
| op_rights |
other openAccess info:eu-repo/semantics/openAccess |
| _version_ |
1787422462872387584 |