Soil N chemistry in oak forests along a nitrogen deposition gradient
Nilsson, Lars Ola LU ; Wallander, Håkan LU
; Bååth, Erland
LU
and Falkengren-Grerup, Ursula
LU
(2006)
In Biogeochemistry
80(1).
p.43-55
- Abstract
- Anthropogenic N deposition may change soil conditions in forest ecosystems as demonstrated in many studies of coniferous forests, whereas results from deciduous forests are relatively scarce. Therefore the influence of N deposition on several variables was studied in situ in 45 oak-dominated deciduous forests along a N deposition gradient in southern Sweden, where the deposition ranged from 10 to 20 kg N ha(-1) year(-1). Locally estimated NO3- deposition, as measured with ion-exchange resins (IER) on the soil surface, and grass N concentration (%) were positively correlated with earlier modelled regional N deposition. Furthermore, the delta N-15 values of grass and uppermost soil layers were negatively correlated with earlier modelled N... (More)
- Anthropogenic N deposition may change soil conditions in forest ecosystems as demonstrated in many studies of coniferous forests, whereas results from deciduous forests are relatively scarce. Therefore the influence of N deposition on several variables was studied in situ in 45 oak-dominated deciduous forests along a N deposition gradient in southern Sweden, where the deposition ranged from 10 to 20 kg N ha(-1) year(-1). Locally estimated NO3- deposition, as measured with ion-exchange resins (IER) on the soil surface, and grass N concentration (%) were positively correlated with earlier modelled regional N deposition. Furthermore, the delta N-15 values of grass and uppermost soil layers were negatively correlated with earlier modelled N deposition. The data on soil NO3-, measured with IER in the soil, and grass N concentration suggest increased soil N availability as a result of N deposition. The delta N-15 values of grass and uppermost soil layers indicate increased nitrification rates in high N deposition sites, but no large downward movements of NO3- in these soils. Only a few sites had NO3- concentrations exceeding 1 mg N 1(-1) in soil solution at 50 cm depth, which showed that N deposition to these acid oak-dominated forests has not yet resulted in extensive leaching of N. The d15N enrichment factor was the variable best correlated with NO3- concentrations at 50 cm and is thus a variable that potentially may be used to predict leaching of NO3- from forest soils. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/162609
- author
- Nilsson, Lars Ola
LU
; Wallander, Håkan
LU
; Bååth, Erland
LU
and Falkengren-Grerup, Ursula
LU
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biogeochemistry
- volume
- 80
- issue
- 1
- pages
- 43 - 55
- publisher
- Springer
- external identifiers
-
- wos:000240016200003
- scopus:33747711331
- ISSN
- 1573-515X
- DOI
- 10.1007/s10533-005-6220-x
- language
- English
- LU publication?
- yes
- id
- 3d90308b-e23b-48be-810d-ce02fdcd5006 (old id 162609)
- date added to LUP
- 2016-04-01 11:51:15
- date last changed
- 2022-01-26 19:14:47
@article{3d90308b-e23b-48be-810d-ce02fdcd5006,
abstract = {{Anthropogenic N deposition may change soil conditions in forest ecosystems as demonstrated in many studies of coniferous forests, whereas results from deciduous forests are relatively scarce. Therefore the influence of N deposition on several variables was studied in situ in 45 oak-dominated deciduous forests along a N deposition gradient in southern Sweden, where the deposition ranged from 10 to 20 kg N ha(-1) year(-1). Locally estimated NO3- deposition, as measured with ion-exchange resins (IER) on the soil surface, and grass N concentration (%) were positively correlated with earlier modelled regional N deposition. Furthermore, the delta N-15 values of grass and uppermost soil layers were negatively correlated with earlier modelled N deposition. The data on soil NO3-, measured with IER in the soil, and grass N concentration suggest increased soil N availability as a result of N deposition. The delta N-15 values of grass and uppermost soil layers indicate increased nitrification rates in high N deposition sites, but no large downward movements of NO3- in these soils. Only a few sites had NO3- concentrations exceeding 1 mg N 1(-1) in soil solution at 50 cm depth, which showed that N deposition to these acid oak-dominated forests has not yet resulted in extensive leaching of N. The d15N enrichment factor was the variable best correlated with NO3- concentrations at 50 cm and is thus a variable that potentially may be used to predict leaching of NO3- from forest soils.}},
author = {{Nilsson, Lars Ola and Wallander, Håkan and Bååth, Erland and Falkengren-Grerup, Ursula}},
issn = {{1573-515X}},
language = {{eng}},
number = {{1}},
pages = {{43--55}},
publisher = {{Springer}},
series = {{Biogeochemistry}},
title = {{Soil N chemistry in oak forests along a nitrogen deposition gradient}},
url = {{http://dx.doi.org/10.1007/s10533-005-6220-x}},
doi = {{10.1007/s10533-005-6220-x}},
volume = {{80}},
year = {{2006}},
}