Nitrogen leaching and ectomycorrhizal nitrogen retention capacity in a Norway spruce forest fertilized with nitrogen and phosphorus
Bahr, Adam LU ; Ellström, Magnus LU ; Bergh, Johan and Wallander, Håkan LU
(2015)
In Plant and Soil
390(1-2).
p.323-335
- Abstract
- To estimate the production of external ectomycorrhizal mycelia (EMM) in Norway spruce forests with varying nitrogen (N) and phosphorus (P) levels, and to relate this to the N retention capacity of ectomycorrhizal fungi (EMF) and N leaching. Seasonal changes in EMF production (in ingrowth mesh bags) and soil water N (in suction lysimeters) were analyzed after fertilization with N or N combined with P. The EMF N retention capacity was estimated by the addition of isotopically labeled N to the mesh bags. No relationship was found between the seasonal variation in EMF growth and N leakage from the soil. However, in the mesh bags, the total assimilation of N-15 by EMF was almost halved by N fertilization, while twice as much N-15 leached... (More)
- To estimate the production of external ectomycorrhizal mycelia (EMM) in Norway spruce forests with varying nitrogen (N) and phosphorus (P) levels, and to relate this to the N retention capacity of ectomycorrhizal fungi (EMF) and N leaching. Seasonal changes in EMF production (in ingrowth mesh bags) and soil water N (in suction lysimeters) were analyzed after fertilization with N or N combined with P. The EMF N retention capacity was estimated by the addition of isotopically labeled N to the mesh bags. No relationship was found between the seasonal variation in EMF growth and N leakage from the soil. However, in the mesh bags, the total assimilation of N-15 by EMF was almost halved by N fertilization, while twice as much N-15 leached through. We found a high specific N assimilation capacity per unit weight of EMF mycelia. This was unaffected by N fertilization, but the total assimilation of N by EMF was drastically reduced due to reduced production of EMM. However, N-retaining processes other than N assimilation by EMF must be taken into account to explain the losses of N after fertilization. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/5386147
- author
- Bahr, Adam
LU
; Ellström, Magnus
LU
; Bergh, Johan
and Wallander, Håkan
LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- leaching, Nitrogen retention, Phosphorus, Ectomycorrhiza, Nitrogen, Mycelium, Norway spruce
- in
- Plant and Soil
- volume
- 390
- issue
- 1-2
- pages
- 323 - 335
- publisher
- Springer Science and Business Media B.V.
- external identifiers
-
- wos:000353476200023
- scopus:84939981579
- ISSN
- 0032-079X
- DOI
- 10.1007/s11104-015-2408-6
- project
- MICCS - Molecular Interactions Controlling soil Carbon Sequestration
- language
- English
- LU publication?
- yes
- id
- acacc588-6bf9-4744-b15b-99ebe1874f6c (old id 5386147)
- date added to LUP
- 2016-04-01 14:35:28
- date last changed
- 2025-03-15 12:12:29
@article{acacc588-6bf9-4744-b15b-99ebe1874f6c,
abstract = {{To estimate the production of external ectomycorrhizal mycelia (EMM) in Norway spruce forests with varying nitrogen (N) and phosphorus (P) levels, and to relate this to the N retention capacity of ectomycorrhizal fungi (EMF) and N leaching. Seasonal changes in EMF production (in ingrowth mesh bags) and soil water N (in suction lysimeters) were analyzed after fertilization with N or N combined with P. The EMF N retention capacity was estimated by the addition of isotopically labeled N to the mesh bags. No relationship was found between the seasonal variation in EMF growth and N leakage from the soil. However, in the mesh bags, the total assimilation of N-15 by EMF was almost halved by N fertilization, while twice as much N-15 leached through. We found a high specific N assimilation capacity per unit weight of EMF mycelia. This was unaffected by N fertilization, but the total assimilation of N by EMF was drastically reduced due to reduced production of EMM. However, N-retaining processes other than N assimilation by EMF must be taken into account to explain the losses of N after fertilization.}},
author = {{Bahr, Adam and Ellström, Magnus and Bergh, Johan and Wallander, Håkan}},
issn = {{0032-079X}},
keywords = {{leaching; Nitrogen retention; Phosphorus; Ectomycorrhiza; Nitrogen; Mycelium; Norway spruce}},
language = {{eng}},
number = {{1-2}},
pages = {{323--335}},
publisher = {{Springer Science and Business Media B.V.}},
series = {{Plant and Soil}},
title = {{Nitrogen leaching and ectomycorrhizal nitrogen retention capacity in a Norway spruce forest fertilized with nitrogen and phosphorus}},
url = {{http://dx.doi.org/10.1007/s11104-015-2408-6}},
doi = {{10.1007/s11104-015-2408-6}},
volume = {{390}},
year = {{2015}},
}