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Short-term effects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest

Sundqvist, Elin LU ; Vestin, Patrik LU ; Crill, Patrick; Persson, Tryggve and Lindroth, Anders LU (2014) In Biogeosciences 11(21). p.6095-6105
Abstract
Forest management practices can alter soil conditions,

affecting the consumption and production processes

that control soil methane (CH4) exchange. We studied the

short-term effects of thinning, clear-cutting and stump harvesting

on the CH4 exchange between soil and atmosphere at

a boreal forest site in central Sweden, using an undisturbed

plot as the control. Chambers in combination with a highprecision

laser gas analyser were used for continuous measurements.

Both the undisturbed plot and the thinned plot

were net sinks of CH4, whereas the clear-cut plot and the

stump harvested plot were net CH4 sources. The CH4 uptake

at the thinned plot... (More)
Forest management practices can alter soil conditions,

affecting the consumption and production processes

that control soil methane (CH4) exchange. We studied the

short-term effects of thinning, clear-cutting and stump harvesting

on the CH4 exchange between soil and atmosphere at

a boreal forest site in central Sweden, using an undisturbed

plot as the control. Chambers in combination with a highprecision

laser gas analyser were used for continuous measurements.

Both the undisturbed plot and the thinned plot

were net sinks of CH4, whereas the clear-cut plot and the

stump harvested plot were net CH4 sources. The CH4 uptake

at the thinned plot was reduced in comparison to the undisturbed

plot. The shift from sink to source at the clear-cut and

stump harvested plots was probably due to a rise in the water

table and an increase in soil moisture, leading to lower

gas diffusivity and more reduced conditions, which favour

CH4 production by archea. Reduced evapotranspiration after

harvesting leads to wetter soils, decreased CH4 consumption

and increased CH4 production, and should be accounted for

in the CH4 budget of managed forests. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biogeosciences
volume
11
issue
21
pages
6095 - 6105
publisher
Copernicus Publications
external identifiers
  • wos:000344649700007
  • scopus:84912114552
ISSN
1726-4189
DOI
10.5194/bg-11-6095-2014
language
English
LU publication?
yes
id
33377f48-d58d-416d-b3ec-761032249802 (old id 4857122)
alternative location
http://www.biogeosciences.net/11/6095/2014/bg-11-6095-2014.pdf
date added to LUP
2016-01-25 16:54:28
date last changed
2017-10-22 03:30:22
@article{33377f48-d58d-416d-b3ec-761032249802,
  abstract     = {Forest management practices can alter soil conditions,<br/><br>
affecting the consumption and production processes<br/><br>
that control soil methane (CH4) exchange. We studied the<br/><br>
short-term effects of thinning, clear-cutting and stump harvesting<br/><br>
on the CH4 exchange between soil and atmosphere at<br/><br>
a boreal forest site in central Sweden, using an undisturbed<br/><br>
plot as the control. Chambers in combination with a highprecision<br/><br>
laser gas analyser were used for continuous measurements.<br/><br>
Both the undisturbed plot and the thinned plot<br/><br>
were net sinks of CH4, whereas the clear-cut plot and the<br/><br>
stump harvested plot were net CH4 sources. The CH4 uptake<br/><br>
at the thinned plot was reduced in comparison to the undisturbed<br/><br>
plot. The shift from sink to source at the clear-cut and<br/><br>
stump harvested plots was probably due to a rise in the water<br/><br>
table and an increase in soil moisture, leading to lower<br/><br>
gas diffusivity and more reduced conditions, which favour<br/><br>
CH4 production by archea. Reduced evapotranspiration after<br/><br>
harvesting leads to wetter soils, decreased CH4 consumption<br/><br>
and increased CH4 production, and should be accounted for<br/><br>
in the CH4 budget of managed forests.},
  author       = {Sundqvist, Elin and Vestin, Patrik and Crill, Patrick and Persson, Tryggve and Lindroth, Anders},
  issn         = {1726-4189},
  language     = {eng},
  number       = {21},
  pages        = {6095--6105},
  publisher    = {Copernicus Publications},
  series       = {Biogeosciences},
  title        = {Short-term effects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest},
  url          = {http://dx.doi.org/10.5194/bg-11-6095-2014},
  volume       = {11},
  year         = {2014},
}