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In situ gross nitrogen transformations differ between temperate deciduous and coniferous forest soils

Jeroen Staelens UGent, Tobias Rütting, Dries Huygens UGent, An De Schrijver UGent, Christoph Müller, Kris Verheyen UGent and Pascal Boeckx UGent (2012) BIOGEOCHEMISTRY. 108(1-3). p.259-277
abstract
Despite long-term enhanced nitrogen (N) inputs, forests can retain considerable amounts of N. While rates of N inputs via throughfall and N leaching are increased in coniferous stands relative to deciduous stands at comparable sites, N leaching below coniferous stands is disproportionally enhanced relative to the N input. A better understanding of factors affecting N retention is needed to assess the impact of changing N deposition on N cycling and N loss of forests. Therefore, gross N transformation pathways were quantified in undisturbed well-drained sandy soils of adjacent equal-aged deciduous (pedunculate oak (Quercus robur L.)) and coniferous (Scots pine (Pinus sylvestris L.)) planted forest stands located in a region with high N deposition (north Belgium). In situ inorganic N-15 labelling of the mineral topsoil (0-10 cm) combined with numerical data analysis demonstrated that (i) all gross N transformations differed significantly (p < 0.05) between the two forest soils, (ii) gross N mineralization in the pine soil was less than half the rate in the oak soil, (iii) meaningful N immobilization was only observed for ammonium, (iv) nitrate production via oxidation of organic N occurred three times faster in the pine soil while ammonium oxidation was similar in both soils, and (v) dissimilatory nitrate reduction to ammonium was detected in both soils but was higher in the oak soil. We conclude that the higher gross nitrification (including oxidation of organic N) in the pine soil compared to the oak soil, combined with negligible nitrate immobilization, is in line with the observed higher nitrate leaching under the pine forest.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Mineralization, Forest type, Nitrification, N-15, Tracing model, Nutrient cycling, MICROBIAL COMMUNITY STRUCTURE, CHILEAN NOTHOFAGUS FOREST, HUMID TROPICAL FOREST, GRASSLAND SOIL, INORGANIC NITROGEN, N TRANSFORMATIONS, PINUS-SYLVESTRIS, ORGANIC-MATTER, BETULA-PENDULA, CYCLING RATES
journal title
BIOGEOCHEMISTRY
Biogeochemistry
volume
108
issue
1-3
pages
259 - 277
Web of Science type
Article
Web of Science id
000300659300018
JCR category
GEOSCIENCES, MULTIDISCIPLINARY
JCR impact factor
3.531 (2012)
JCR rank
17/170 (2012)
JCR quartile
1 (2012)
ISSN
0168-2563
DOI
10.1007/s10533-011-9598-7
project
Biotechnology for a sustainable economy (Bio-Economy)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2950407
handle
http://hdl.handle.net/1854/LU-2950407
date created
2012-06-30 14:27:39
date last changed
2014-05-26 10:03:32
@article{2950407,
  abstract     = {Despite long-term enhanced nitrogen (N) inputs, forests can retain considerable amounts of N. While rates of N inputs via throughfall and N leaching are increased in coniferous stands relative to deciduous stands at comparable sites, N leaching below coniferous stands is disproportionally enhanced relative to the N input. A better understanding of factors affecting N retention is needed to assess the impact of changing N deposition on N cycling and N loss of forests. Therefore, gross N transformation pathways were quantified in undisturbed well-drained sandy soils of adjacent equal-aged deciduous (pedunculate oak (Quercus robur L.)) and coniferous (Scots pine (Pinus sylvestris L.)) planted forest stands located in a region with high N deposition (north Belgium). In situ inorganic N-15 labelling of the mineral topsoil (0-10 cm) combined with numerical data analysis demonstrated that (i) all gross N transformations differed significantly (p {\textlangle} 0.05) between the two forest soils, (ii) gross N mineralization in the pine soil was less than half the rate in the oak soil, (iii) meaningful N immobilization was only observed for ammonium, (iv) nitrate production via oxidation of organic N occurred three times faster in the pine soil while ammonium oxidation was similar in both soils, and (v) dissimilatory nitrate reduction to ammonium was detected in both soils but was higher in the oak soil. We conclude that the higher gross nitrification (including oxidation of organic N) in the pine soil compared to the oak soil, combined with negligible nitrate immobilization, is in line with the observed higher nitrate leaching under the pine forest.},
  author       = {Staelens, Jeroen and R{\"u}tting, Tobias and Huygens, Dries and De Schrijver, An and M{\"u}ller, Christoph and Verheyen, Kris and Boeckx, Pascal},
  issn         = {0168-2563},
  journal      = {BIOGEOCHEMISTRY},
  keyword      = {Mineralization,Forest type,Nitrification,N-15,Tracing model,Nutrient cycling,MICROBIAL COMMUNITY STRUCTURE,CHILEAN NOTHOFAGUS FOREST,HUMID TROPICAL FOREST,GRASSLAND SOIL,INORGANIC NITROGEN,N TRANSFORMATIONS,PINUS-SYLVESTRIS,ORGANIC-MATTER,BETULA-PENDULA,CYCLING RATES},
  language     = {eng},
  number       = {1-3},
  pages        = {259--277},
  title        = {In situ gross nitrogen transformations differ between temperate deciduous and coniferous forest soils},
  url          = {http://dx.doi.org/10.1007/s10533-011-9598-7},
  volume       = {108},
  year         = {2012},
}

Chicago
Staelens, Jeroen, Tobias Rütting, Dries Huygens, An De Schrijver, Christoph Müller, Kris Verheyen, and Pascal Boeckx. 2012. “In Situ Gross Nitrogen Transformations Differ Between Temperate Deciduous and Coniferous Forest Soils.” Biogeochemistry 108 (1-3): 259–277.
APA
Staelens, Jeroen, Rütting, T., Huygens, D., De Schrijver, A., Müller, C., Verheyen, K., & Boeckx, P. (2012). In situ gross nitrogen transformations differ between temperate deciduous and coniferous forest soils. BIOGEOCHEMISTRY, 108(1-3), 259–277.
Vancouver
1.
Staelens J, Rütting T, Huygens D, De Schrijver A, Müller C, Verheyen K, et al. In situ gross nitrogen transformations differ between temperate deciduous and coniferous forest soils. BIOGEOCHEMISTRY. 2012;108(1-3):259–77.
MLA
Staelens, Jeroen, Tobias Rütting, Dries Huygens, et al. “In Situ Gross Nitrogen Transformations Differ Between Temperate Deciduous and Coniferous Forest Soils.” BIOGEOCHEMISTRY 108.1-3 (2012): 259–277. Print.