Forest History and the Development of Old-Growth Characteristics in Fragmented Boreal Forests. Jönsson, M. T., Fraver, S., & Jonsson, B. G. 20(1):91–106.
Paper doi abstract bibtex [Questions] Can small and isolated high-conservation value forests (e.g. designated woodland key habitats) maintain old-growth forest characteristics and functionality in fragmented landscapes? To what extent have past disturbances (natural and anthropogenic) influenced the development of old-growth characteristics of these forests? How long does it take for selectively cut stands to attain conditions resembling old-growth forests? [Location] Southern boreal zone of central Sweden. [Methods] We linked multiple lines of evidence from historical records, biological archives, and analyses of current forest structure to reconstruct the forest history of a boreal landscape, with special emphasis on six remaining core localities of high-conservation value forest stands. [Results] Our reconstructions revealed that several of these stands experienced wildfires up to the 1890s; all had been selectively harvested in the late 1800s; and all underwent substantial structural and compositional reorganization over the following 100-150 years. This time interval was sufficient to recover considerable amounts of standing and downed dead wood (mean 60.3 m3 ha-1), a range of tree ages and sizes (mean basal area 32.6 m2 ha-1), and dominance of shade-tolerant spruce. It was insufficient to obtain clearly uneven tree age structures and large ($>$45 cm diameter) living and dead trees. Thus, these forests contain some, but not all, important compositional and structural attributes of old-growth forests, their abundance being dependent on the timing and magnitude of past natural and anthropogenic disturbances. Our landscape-level analysis showed marked compositional and structural differences between the historical forest landscape and the present landscape, with the latter having a greater proportion of young forests, introduction of non-native species, and lack of large trees and dead wood. [Conclusions] The remnant high-conservation value stands were not true representatives of the pre-industrial forests, but represent the last vestige of forests that have regenerated naturally and maintained a continuous tree cover. These traits, coupled with their capacity for old-growth recovery, make them valuable focal areas for conservation.
@article{jonssonForestHistoryDevelopment2009,
title = {Forest History and the Development of Old-Growth Characteristics in Fragmented Boreal Forests},
author = {Jönsson, Mari T. and Fraver, Shawn and Jonsson, Bengt G.},
date = {2009-02},
journaltitle = {Journal of Vegetation Science},
volume = {20},
pages = {91--106},
issn = {1100-9233},
doi = {10.1111/j.1654-1103.2009.05394.x},
url = {http://mfkp.org/INRMM/article/13706923},
abstract = {[Questions] Can small and isolated high-conservation value forests (e.g. designated woodland key habitats) maintain old-growth forest characteristics and functionality in fragmented landscapes? To what extent have past disturbances (natural and anthropogenic) influenced the development of old-growth characteristics of these forests? How long does it take for selectively cut stands to attain conditions resembling old-growth forests?
[Location] Southern boreal zone of central Sweden.
[Methods] We linked multiple lines of evidence from historical records, biological archives, and analyses of current forest structure to reconstruct the forest history of a boreal landscape, with special emphasis on six remaining core localities of high-conservation value forest stands.
[Results] Our reconstructions revealed that several of these stands experienced wildfires up to the 1890s; all had been selectively harvested in the late 1800s; and all underwent substantial structural and compositional reorganization over the following 100-150 years. This time interval was sufficient to recover considerable amounts of standing and downed dead wood (mean 60.3 m3 ha-1), a range of tree ages and sizes (mean basal area 32.6 m2 ha-1), and dominance of shade-tolerant spruce. It was insufficient to obtain clearly uneven tree age structures and large ({$>$}45 cm diameter) living and dead trees. Thus, these forests contain some, but not all, important compositional and structural attributes of old-growth forests, their abundance being dependent on the timing and magnitude of past natural and anthropogenic disturbances. Our landscape-level analysis showed marked compositional and structural differences between the historical forest landscape and the present landscape, with the latter having a greater proportion of young forests, introduction of non-native species, and lack of large trees and dead wood.
[Conclusions] The remnant high-conservation value stands were not true representatives of the pre-industrial forests, but represent the last vestige of forests that have regenerated naturally and maintained a continuous tree cover. These traits, coupled with their capacity for old-growth recovery, make them valuable focal areas for conservation.},
keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13706923,~to-add-doi-URL,boreal-forests,conservation,forest-resources,fragmentation,sweden},
number = {1}
}
Downloads: 0
{"_id":"nmeqJNAbqjffoYGMD","bibbaseid":"jnsson-fraver-jonsson-foresthistoryandthedevelopmentofoldgrowthcharacteristicsinfragmentedborealforests","authorIDs":[],"author_short":["Jönsson, M. T.","Fraver, S.","Jonsson, B. G."],"bibdata":{"bibtype":"article","type":"article","title":"Forest History and the Development of Old-Growth Characteristics in Fragmented Boreal Forests","author":[{"propositions":[],"lastnames":["Jönsson"],"firstnames":["Mari","T."],"suffixes":[]},{"propositions":[],"lastnames":["Fraver"],"firstnames":["Shawn"],"suffixes":[]},{"propositions":[],"lastnames":["Jonsson"],"firstnames":["Bengt","G."],"suffixes":[]}],"date":"2009-02","journaltitle":"Journal of Vegetation Science","volume":"20","pages":"91–106","issn":"1100-9233","doi":"10.1111/j.1654-1103.2009.05394.x","url":"http://mfkp.org/INRMM/article/13706923","abstract":"[Questions] Can small and isolated high-conservation value forests (e.g. designated woodland key habitats) maintain old-growth forest characteristics and functionality in fragmented landscapes? To what extent have past disturbances (natural and anthropogenic) influenced the development of old-growth characteristics of these forests? How long does it take for selectively cut stands to attain conditions resembling old-growth forests? [Location] Southern boreal zone of central Sweden. [Methods] We linked multiple lines of evidence from historical records, biological archives, and analyses of current forest structure to reconstruct the forest history of a boreal landscape, with special emphasis on six remaining core localities of high-conservation value forest stands. [Results] Our reconstructions revealed that several of these stands experienced wildfires up to the 1890s; all had been selectively harvested in the late 1800s; and all underwent substantial structural and compositional reorganization over the following 100-150 years. This time interval was sufficient to recover considerable amounts of standing and downed dead wood (mean 60.3 m3 ha-1), a range of tree ages and sizes (mean basal area 32.6 m2 ha-1), and dominance of shade-tolerant spruce. It was insufficient to obtain clearly uneven tree age structures and large ($>$45 cm diameter) living and dead trees. Thus, these forests contain some, but not all, important compositional and structural attributes of old-growth forests, their abundance being dependent on the timing and magnitude of past natural and anthropogenic disturbances. Our landscape-level analysis showed marked compositional and structural differences between the historical forest landscape and the present landscape, with the latter having a greater proportion of young forests, introduction of non-native species, and lack of large trees and dead wood. [Conclusions] The remnant high-conservation value stands were not true representatives of the pre-industrial forests, but represent the last vestige of forests that have regenerated naturally and maintained a continuous tree cover. These traits, coupled with their capacity for old-growth recovery, make them valuable focal areas for conservation.","keywords":"*imported-from-citeulike-INRMM,~INRMM-MiD:c-13706923,~to-add-doi-URL,boreal-forests,conservation,forest-resources,fragmentation,sweden","number":"1","bibtex":"@article{jonssonForestHistoryDevelopment2009,\n title = {Forest History and the Development of Old-Growth Characteristics in Fragmented Boreal Forests},\n author = {Jönsson, Mari T. and Fraver, Shawn and Jonsson, Bengt G.},\n date = {2009-02},\n journaltitle = {Journal of Vegetation Science},\n volume = {20},\n pages = {91--106},\n issn = {1100-9233},\n doi = {10.1111/j.1654-1103.2009.05394.x},\n url = {http://mfkp.org/INRMM/article/13706923},\n abstract = {[Questions] Can small and isolated high-conservation value forests (e.g. designated woodland key habitats) maintain old-growth forest characteristics and functionality in fragmented landscapes? To what extent have past disturbances (natural and anthropogenic) influenced the development of old-growth characteristics of these forests? How long does it take for selectively cut stands to attain conditions resembling old-growth forests?\n\n[Location] Southern boreal zone of central Sweden.\n\n[Methods] We linked multiple lines of evidence from historical records, biological archives, and analyses of current forest structure to reconstruct the forest history of a boreal landscape, with special emphasis on six remaining core localities of high-conservation value forest stands.\n\n[Results] Our reconstructions revealed that several of these stands experienced wildfires up to the 1890s; all had been selectively harvested in the late 1800s; and all underwent substantial structural and compositional reorganization over the following 100-150 years. This time interval was sufficient to recover considerable amounts of standing and downed dead wood (mean 60.3 m3 ha-1), a range of tree ages and sizes (mean basal area 32.6 m2 ha-1), and dominance of shade-tolerant spruce. It was insufficient to obtain clearly uneven tree age structures and large ({$>$}45 cm diameter) living and dead trees. Thus, these forests contain some, but not all, important compositional and structural attributes of old-growth forests, their abundance being dependent on the timing and magnitude of past natural and anthropogenic disturbances. Our landscape-level analysis showed marked compositional and structural differences between the historical forest landscape and the present landscape, with the latter having a greater proportion of young forests, introduction of non-native species, and lack of large trees and dead wood.\n\n[Conclusions] The remnant high-conservation value stands were not true representatives of the pre-industrial forests, but represent the last vestige of forests that have regenerated naturally and maintained a continuous tree cover. These traits, coupled with their capacity for old-growth recovery, make them valuable focal areas for conservation.},\n keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-13706923,~to-add-doi-URL,boreal-forests,conservation,forest-resources,fragmentation,sweden},\n number = {1}\n}\n\n","author_short":["Jönsson, M. T.","Fraver, S.","Jonsson, B. G."],"key":"jonssonForestHistoryDevelopment2009","id":"jonssonForestHistoryDevelopment2009","bibbaseid":"jnsson-fraver-jonsson-foresthistoryandthedevelopmentofoldgrowthcharacteristicsinfragmentedborealforests","role":"author","urls":{"Paper":"http://mfkp.org/INRMM/article/13706923"},"keyword":["*imported-from-citeulike-INRMM","~INRMM-MiD:c-13706923","~to-add-doi-URL","boreal-forests","conservation","forest-resources","fragmentation","sweden"],"downloads":0},"bibtype":"article","biburl":"https://tmpfiles.org/dl/58794/INRMM.bib","creationDate":"2020-07-02T22:41:10.623Z","downloads":0,"keywords":["*imported-from-citeulike-inrmm","~inrmm-mid:c-13706923","~to-add-doi-url","boreal-forests","conservation","forest-resources","fragmentation","sweden"],"search_terms":["forest","history","development","old","growth","characteristics","fragmented","boreal","forests","jönsson","fraver","jonsson"],"title":"Forest History and the Development of Old-Growth Characteristics in Fragmented Boreal Forests","year":null,"dataSources":["DXuKbcZTirdigFKPF"]}