Nitrogen Immobilization in Decomposing Needle Litter at Variable Carbon: Nitrogen Ratios

The nitrogen dynamics in decomposing needle litter incubated in a clear—cut area were seen to be very different from those of the same types of litter incubated in a mature forest. In each stand 10 different sets of Scots pine needle litter with different initial nitrogen concentrations were incubat...

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Bibliographic Details
Published in:Ecology (Durham) 1983-01, Vol.64 (1), p.63-67
Main Authors: Berg, B., Ekbohm, G.
Format: Article
Language:English
Subjects:
accumulation
Animal and plant ecology
Animal, plant and microbial ecology
Biological and medical sciences
CIN‐quotients
Coniferous forests
decomposition
Ecology
Ecosystems
Forest ecology
Forest ecosystems
Forest litter
Forest soils
Fundamental and applied biological sciences. Psychology
immobilization
mineralization
Nitrogen
nitrogen dynamic
Pinus sylvestris
Plant litter
Soil ecology
Synecology
Terrestrial ecosystems
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Summary:The nitrogen dynamics in decomposing needle litter incubated in a clear—cut area were seen to be very different from those of the same types of litter incubated in a mature forest. In each stand 10 different sets of Scots pine needle litter with different initial nitrogen concentrations were incubated. A nonlinear regression model of loss and nitrogen dynamics estimates that the C/N ratio above which net immobilization and below which net mineralization takes place differs significantly between the systems (109 in the mature forest and °63 in the clear—cut area).
ISSN:0012-9658
1939-9170
DOI:10.2307/1937329