The influence of N load and harvest intensity on the risk of P limitation in Swedish forest soils
Akselsson, Cecilia ; Westling, Olle ; Alveteg, Mattias LU
; Thelin, Gunnar
LU
; Fransson, Ann-Mari
LU
and Hellsten, Sofie
(2008)
5th International Symposium on Ecosystem Behavior
404(2-3).
p.284-289
- Abstract
- Nitrogen (N) is often considered to be the major factor limiting tree growth in northern forest ecosystems. An increased N availability, however, increases the demand for other nutrients such as base cations and phosphorous (P) which in turn may change which nutrient is the limiting factor. If P or base cations become limiting, N will start to leach which means a risk of increased eutrophication of surface waters. As many studies focus on base cations, this study instead aims at estimating P budgets on a regional scale for different harvesting scenarios relevant for Swedish conditions. P budget calculations were carried out for 14,550 coniferous sites from the Swedish National Forest Inventory, as weathering+deposition-harvesting-leaching.... (More)
- Nitrogen (N) is often considered to be the major factor limiting tree growth in northern forest ecosystems. An increased N availability, however, increases the demand for other nutrients such as base cations and phosphorous (P) which in turn may change which nutrient is the limiting factor. If P or base cations become limiting, N will start to leach which means a risk of increased eutrophication of surface waters. As many studies focus on base cations, this study instead aims at estimating P budgets on a regional scale for different harvesting scenarios relevant for Swedish conditions. P budget calculations were carried out for 14,550 coniferous sites from the Swedish National Forest Inventory, as weathering+deposition-harvesting-leaching. Three scenarios with different harvest intensities were used: 1) no harvesting, 2) stem harvesting and 3) whole-tree harvesting. The input data were derived from measurements and model results. The P budget estimates indicate that harvesting, especially whole-tree harvesting, result in net losses of P in large parts of Sweden. The highest losses were found in southern Sweden due to high growth rate in this area. In the whole-tree harvesting scenario the losses exceeded 1 kg ha(-1)y(-1) on many sites. N budget calculations on the same sites indicate that N generally accumulates in the whole country and especially in the southern parts. Consequently, the N and P budget calculations indicate that the forests in southern Sweden are in a transition phase from N-to P-limitation to growth. This transition will proceed as long as the accumulation of N continues. These results are important in a sustainable forestry context, as a basis for assessing the risk of future N leaching, and in designing recommendations for abatement strategies of N deposition and for application of wood ash recycling and N fertilization. (C) 2007 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1278957
- author
- Akselsson, Cecilia
; Westling, Olle
; Alveteg, Mattias
LU
; Thelin, Gunnar
LU
; Fransson, Ann-Mari
LU
and Hellsten, Sofie
- organization
- publishing date
- 2008
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Harvesting, Sweden, Forest soils, Budget, Phosphorous, Nitrogen, Weathering
- host publication
- SCIENCE OF THE TOTAL ENVIRONMENT
- volume
- 404
- issue
- 2-3
- pages
- 284 - 289
- publisher
- Elsevier
- conference name
- 5th International Symposium on Ecosystem Behavior
- conference dates
- 2006-06-25 - 2006-06-30
- external identifiers
-
- wos:000260701900009
- scopus:52949122187
- ISSN
- 1879-1026
- 0048-9697
- DOI
- 10.1016/j.scitotenv.2007.11.017
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Plant Ecology and Systematics (Closed 2011) (011004000), Chemical Engineering (011001014)
- id
- dbc8d14b-6a55-4165-b9e4-c8d4b41eba8d (old id 1278957)
- date added to LUP
- 2016-04-01 12:10:26
- date last changed
- 2024-01-08 11:01:33
@inproceedings{dbc8d14b-6a55-4165-b9e4-c8d4b41eba8d,
abstract = {{Nitrogen (N) is often considered to be the major factor limiting tree growth in northern forest ecosystems. An increased N availability, however, increases the demand for other nutrients such as base cations and phosphorous (P) which in turn may change which nutrient is the limiting factor. If P or base cations become limiting, N will start to leach which means a risk of increased eutrophication of surface waters. As many studies focus on base cations, this study instead aims at estimating P budgets on a regional scale for different harvesting scenarios relevant for Swedish conditions. P budget calculations were carried out for 14,550 coniferous sites from the Swedish National Forest Inventory, as weathering+deposition-harvesting-leaching. Three scenarios with different harvest intensities were used: 1) no harvesting, 2) stem harvesting and 3) whole-tree harvesting. The input data were derived from measurements and model results. The P budget estimates indicate that harvesting, especially whole-tree harvesting, result in net losses of P in large parts of Sweden. The highest losses were found in southern Sweden due to high growth rate in this area. In the whole-tree harvesting scenario the losses exceeded 1 kg ha(-1)y(-1) on many sites. N budget calculations on the same sites indicate that N generally accumulates in the whole country and especially in the southern parts. Consequently, the N and P budget calculations indicate that the forests in southern Sweden are in a transition phase from N-to P-limitation to growth. This transition will proceed as long as the accumulation of N continues. These results are important in a sustainable forestry context, as a basis for assessing the risk of future N leaching, and in designing recommendations for abatement strategies of N deposition and for application of wood ash recycling and N fertilization. (C) 2007 Elsevier B.V. All rights reserved.}},
author = {{Akselsson, Cecilia and Westling, Olle and Alveteg, Mattias and Thelin, Gunnar and Fransson, Ann-Mari and Hellsten, Sofie}},
booktitle = {{SCIENCE OF THE TOTAL ENVIRONMENT}},
issn = {{1879-1026}},
keywords = {{Harvesting; Sweden; Forest soils; Budget; Phosphorous; Nitrogen; Weathering}},
language = {{eng}},
number = {{2-3}},
pages = {{284--289}},
publisher = {{Elsevier}},
title = {{The influence of N load and harvest intensity on the risk of P limitation in Swedish forest soils}},
url = {{http://dx.doi.org/10.1016/j.scitotenv.2007.11.017}},
doi = {{10.1016/j.scitotenv.2007.11.017}},
volume = {{404}},
year = {{2008}},
}