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Assessing critical loads for nitrogen under climate change based on chemical and biological indicators in a sub-Arctic country : The case of Sweden

Sverdrup, H. LU ; Belyazid, S. LU ; Akselsson, C. LU and Posch, M. (2017) In Ecological and Biogeochemical Cycling in Impacted Polar Ecosystems p.249-275
Abstract

The integrated dynamic ecosystem models SAFE and ForSAFEVEG were used to estimate critical loads for nitrogen using different chemical and biological criteria, and attempting to account for possible effects of climate change. The study is based on a model application on a set of 640 sites earlier used for critical loads assessments in Sweden, focusing on the ecological effect of nitrogen pollution. To assess critical loads for nitrogen to ecosystems, two criteria were used for the critical loads estimates: 1: N leaching, and 2: changes in plant community composition, and assessed using the models mentioned. We show that the model gives results consistent with earlier results using other methods such as the simple mass balance method. We... (More)

The integrated dynamic ecosystem models SAFE and ForSAFEVEG were used to estimate critical loads for nitrogen using different chemical and biological criteria, and attempting to account for possible effects of climate change. The study is based on a model application on a set of 640 sites earlier used for critical loads assessments in Sweden, focusing on the ecological effect of nitrogen pollution. To assess critical loads for nitrogen to ecosystems, two criteria were used for the critical loads estimates: 1: N leaching, and 2: changes in plant community composition, and assessed using the models mentioned. We show that the model gives results consistent with earlier results using other methods such as the simple mass balance method. We show that the new model system is operational over the whole of the Swedish territory and may be used for policy development and policy outcome assessments. The critical loads are estimated both under the assumption of no change in climate from today’s level and under the assumption that the steady state of climate will be comparable to the predicted levels of 2100 for temperature and precipitation under the IPCC-SRES A2 scenario (Formerly the “worst case” scenario, after 2011, the “medium case” scenario.)

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Biodiversity, Critical loads, Dynamic modelling, Exceedence, ForSAFE-VEG, Simple mass balance model
in
Ecological and Biogeochemical Cycling in Impacted Polar Ecosystems
pages
27 pages
publisher
Nova Science Publishers, Inc.
external identifiers
  • scopus:85034412358
ISBN
9781536120813
9781536121001
language
English
LU publication?
yes
id
3befd245-914d-48ee-aa52-71103c6fa08c
date added to LUP
2017-12-11 12:29:47
date last changed
2018-01-07 12:28:08
@inbook{3befd245-914d-48ee-aa52-71103c6fa08c,
  abstract     = {<p>The integrated dynamic ecosystem models SAFE and ForSAFEVEG were used to estimate critical loads for nitrogen using different chemical and biological criteria, and attempting to account for possible effects of climate change. The study is based on a model application on a set of 640 sites earlier used for critical loads assessments in Sweden, focusing on the ecological effect of nitrogen pollution. To assess critical loads for nitrogen to ecosystems, two criteria were used for the critical loads estimates: 1: N leaching, and 2: changes in plant community composition, and assessed using the models mentioned. We show that the model gives results consistent with earlier results using other methods such as the simple mass balance method. We show that the new model system is operational over the whole of the Swedish territory and may be used for policy development and policy outcome assessments. The critical loads are estimated both under the assumption of no change in climate from today’s level and under the assumption that the steady state of climate will be comparable to the predicted levels of 2100 for temperature and precipitation under the IPCC-SRES A2 scenario (Formerly the “worst case” scenario, after 2011, the “medium case” scenario.)</p>},
  author       = {Sverdrup, H. and Belyazid, S. and Akselsson, C. and Posch, M.},
  isbn         = {9781536120813},
  keyword      = {Biodiversity,Critical loads,Dynamic modelling,Exceedence,ForSAFE-VEG,Simple mass balance model},
  language     = {eng},
  month        = {01},
  pages        = {249--275},
  publisher    = {Nova Science Publishers, Inc.},
  series       = {Ecological and Biogeochemical Cycling in Impacted Polar Ecosystems},
  title        = {Assessing critical loads for nitrogen under climate change based on chemical and biological indicators in a sub-Arctic country : The case of Sweden},
  year         = {2017},
}