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Biological aspects of nitrogen mineralization in humus from a pine forest podsol incubated under different moisture and temperature conditions

Clarholm, M. ; Popovic, B. ; Rosswall, T. ; Söderström, Bengt LU ; Sohlenius, B. ; Staaf, H. and Wiren, A. (1981) In Oikos 37(2). p.137-145
Abstract
Abstract in Undetermined
Fluctuations of soil organism abundance, soil respiration and inorganic nitrogen were
studied in a laboratory experiment on material taken from the humus layer of a Scots
pine forest and incubated under different moisture and temperature regimes. The
experiment was run for 28 wk with samplings every 7 wk. At 28 wk, increases in
"total movable N" (inorganic N + biomass N) were observed in samples incubated at
high temperature and/or high moisture content. Most of the N was found in biomass
except in incubations at the highest temperatures and moistures. Under those conditions,
high abundance of nematodes occurred together with drastically increased
amounts of inorganic N. Low... (More)
Abstract in Undetermined
Fluctuations of soil organism abundance, soil respiration and inorganic nitrogen were
studied in a laboratory experiment on material taken from the humus layer of a Scots
pine forest and incubated under different moisture and temperature regimes. The
experiment was run for 28 wk with samplings every 7 wk. At 28 wk, increases in
"total movable N" (inorganic N + biomass N) were observed in samples incubated at
high temperature and/or high moisture content. Most of the N was found in biomass
except in incubations at the highest temperatures and moistures. Under those conditions,
high abundance of nematodes occurred together with drastically increased
amounts of inorganic N. Low values of inorganic N were recorded under conditions
common in the field. No obvious relations could be detected between standing crops
of bacteria and temperature, moisture or respiration. The number of bacterial-feeding
nematodes seemed to be a possible measure of previous bacterial production
contributing more information than the standing crop measurements of the bacteria,
which varied little despite the direct evidence of substantial bacterial production in
some incubation conditions. (Less)
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type
Contribution to journal
publication status
published
subject
in
Oikos
volume
37
issue
2
pages
137 - 145
publisher
Wiley-Blackwell
ISSN
1600-0706
language
English
LU publication?
yes
id
370d1407-4e62-4f15-9003-987a57ac9b84 (old id 2226500)
alternative location
http://www.jstor.org/stable/3544457
date added to LUP
2016-04-01 11:56:40
date last changed
2021-03-22 12:45:26
@article{370d1407-4e62-4f15-9003-987a57ac9b84,
  abstract     = {Abstract in Undetermined<br/>Fluctuations of soil organism abundance, soil respiration and inorganic nitrogen were<br/>studied in a laboratory experiment on material taken from the humus layer of a Scots<br/>pine forest and incubated under different moisture and temperature regimes. The<br/>experiment was run for 28 wk with samplings every 7 wk. At 28 wk, increases in<br/>"total movable N" (inorganic N + biomass N) were observed in samples incubated at<br/>high temperature and/or high moisture content. Most of the N was found in biomass<br/>except in incubations at the highest temperatures and moistures. Under those conditions,<br/>high abundance of nematodes occurred together with drastically increased<br/>amounts of inorganic N. Low values of inorganic N were recorded under conditions<br/>common in the field. No obvious relations could be detected between standing crops<br/>of bacteria and temperature, moisture or respiration. The number of bacterial-feeding<br/>nematodes seemed to be a possible measure of previous bacterial production<br/>contributing more information than the standing crop measurements of the bacteria,<br/>which varied little despite the direct evidence of substantial bacterial production in<br/>some incubation conditions.},
  author       = {Clarholm, M. and Popovic, B. and Rosswall, T. and Söderström, Bengt and Sohlenius, B. and Staaf, H. and Wiren, A.},
  issn         = {1600-0706},
  language     = {eng},
  number       = {2},
  pages        = {137--145},
  publisher    = {Wiley-Blackwell},
  series       = {Oikos},
  title        = {Biological aspects of nitrogen mineralization in humus from a pine forest podsol incubated under different moisture and temperature conditions},
  url          = {http://www.jstor.org/stable/3544457},
  volume       = {37},
  year         = {1981},
}