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MAGIC, SAFE and SMART model applications at integrated monitoring sites: Effects of emission reduction scenarios

In English

Författare

  • Martin Forsius
  • Mattias Alveteg
  • Alan Jenkins
  • Matti Johansson
  • S Kleemola
  • Anki Lükewille
  • Maximilian Posch
  • Harald Sverdrup
  • Charlotta Walse

Summary, in English

Three well-known dynamic acidification models (MAGIC, SAFE, SMART) were applied to data sets from five Integrated Monitoring sites in Europe. The calibrated models were used in a policy-oriented framework to predict the long-term soil acidification of these background forest sites, given different scenarios of future deposition of S and N. Emphasis was put on deriving realistic site-specific scenarios for the model applications. The deposition was calculated with EMEP transfer matrices and official emissions for the target years 2000, 2005 and 2010. The alternatives for S deposition were current reduction plans and maximum feasible reductions. For N, the NOx and NHy depositions were frozen at the present level. For NOx, a reduction scenario of flat 30% reduction from present deposition also was utilized to demonstrate the possible effects of such a measure. The three models yielded generally consistent results. The Best prediction-scenario (including the effects of the second UN/ECE protocol for reductions of SO2 emissions and present level for NOx-emissions), resulted in many cases in a stabilization of soil acidification, although significant improvements were not always shown. With the exception of one site, the Maximum Feasible Reductions scenario always resulted in significant improvements. Dynamic models are needed as a complement to steady-state techniques for estimating critical loads and assessing emission reduction policies, where adequate data are available.

Publiceringsår

1998

Språk

Engelska

Sidor

21-30

Publikation/Tidskrift/Serie

Water, Air and Soil Pollution

Volym

105

Issue

1-2

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Chemical Engineering

Nyckelord

  • acidification - emission - MAGIC - model - nitrogen - SAFE - SMART - sulfur

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1573-2932