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Where are the forests with highest biomass in Sweden located?

Bergman, Hugo LU (2021) In Student thesis series INES NGEK01 20202
Dept of Physical Geography and Ecosystem Science
Abstract
Identification of high-biomass sites can lead to further studies on their ecology with the purpose
to inform climate change mitigation decisions or give an indication to which sites need stronger
protection. The purpose of this study was to, via a remotely sensed data set of tree biomass,
identify the locations with the highest biomass in Sweden. As biomass varies across the extent
of a stand or forest, the identification was done over four different sizes: 100 ha (1000 m x 1000
m), 25 ha (500 m x 500 m), 6,25 ha (250 m x 250 m) and 1 ha (100 m x 100 m). Additionally,
the distribution of the sites across geographical regions and forest management intensities was
investigated.
It was found that the forests with the highest... (More)
Identification of high-biomass sites can lead to further studies on their ecology with the purpose
to inform climate change mitigation decisions or give an indication to which sites need stronger
protection. The purpose of this study was to, via a remotely sensed data set of tree biomass,
identify the locations with the highest biomass in Sweden. As biomass varies across the extent
of a stand or forest, the identification was done over four different sizes: 100 ha (1000 m x 1000
m), 25 ha (500 m x 500 m), 6,25 ha (250 m x 250 m) and 1 ha (100 m x 100 m). Additionally,
the distribution of the sites across geographical regions and forest management intensities was
investigated.
It was found that the forests with the highest biomass nationwide were the nemoral nature
reserve Osbecks bokskogar (for 100 ha, 220 t/ha), the south boreal non-protected island
Upprannsön (for 25 and 6.25 ha, 251 and 277 t/ha respectively) as well as the north boreal
managed forest Västansjö (1 ha, 376 t/ha). Most of the top sites for the largest size were in
primary- and protected forests as these have relatively consistent biomass across their whole
extent. Protected forests differ from production forests which instead consist of individual
stands of varying, sometimes low, biomass which means that they were not well represented
among the top sites for the larger sizes. At a smaller size, 1 ha, production forests made up a
larger fraction of the highest biomass stands as individual stands late in their rotation cycle in
some cases contained very high biomass. Most of the top values were found in the southern- to
middle regions in Sweden, with very few being located in the northernmost areas. (Less)
Please use this url to cite or link to this publication:
author
Bergman, Hugo LU
supervisor
organization
course
NGEK01 20202
year
type
M2 - Bachelor Degree
subject
keywords
Biomass, Biomass density, Forest biomass, Boreal forests, Forest management, Primary forest, Protected forest
publication/series
Student thesis series INES
report number
535
language
English
id
9042824
date added to LUP
2021-04-06 16:56:50
date last changed
2021-04-06 16:56:50
@misc{9042824,
  abstract     = {{Identification of high-biomass sites can lead to further studies on their ecology with the purpose 
to inform climate change mitigation decisions or give an indication to which sites need stronger 
protection. The purpose of this study was to, via a remotely sensed data set of tree biomass,
identify the locations with the highest biomass in Sweden. As biomass varies across the extent
of a stand or forest, the identification was done over four different sizes: 100 ha (1000 m x 1000
m), 25 ha (500 m x 500 m), 6,25 ha (250 m x 250 m) and 1 ha (100 m x 100 m). Additionally, 
the distribution of the sites across geographical regions and forest management intensities was 
investigated. 
It was found that the forests with the highest biomass nationwide were the nemoral nature 
reserve Osbecks bokskogar (for 100 ha, 220 t/ha), the south boreal non-protected island 
Upprannsön (for 25 and 6.25 ha, 251 and 277 t/ha respectively) as well as the north boreal 
managed forest Västansjö (1 ha, 376 t/ha). Most of the top sites for the largest size were in 
primary- and protected forests as these have relatively consistent biomass across their whole 
extent. Protected forests differ from production forests which instead consist of individual 
stands of varying, sometimes low, biomass which means that they were not well represented
among the top sites for the larger sizes. At a smaller size, 1 ha, production forests made up a 
larger fraction of the highest biomass stands as individual stands late in their rotation cycle in 
some cases contained very high biomass. Most of the top values were found in the southern- to 
middle regions in Sweden, with very few being located in the northernmost areas.}},
  author       = {{Bergman, Hugo}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{Student thesis series INES}},
  title        = {{Where are the forests with highest biomass in Sweden located?}},
  year         = {{2021}},
}