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Autor (up) Hodson, M.E.; Langan, S.J. url  openurl
  Titel Considerations of uncertainty in setting critical loads of acidity of soils: the role of weathering rate determination Typ Journal Article
  Jahr 1999 Publikation Environmental Pollution Kurztitel der Zeitschrift  
  Band 106 Ausgabe 1 Seiten 73-81  
  Zusammenfassung The concept of critical loads has been generally accepted throughout Europe, and increasingly in Asian countries and the rest of the world, as providing the data which farms the basis for international negotiations on abatement strategies for emissions of acidifying pollutants. Central to the determination of quantitative critical loads of acidity for forests (and other ecosystems) is the rate at which the minerals in the soil weather or dissolve. Seven methods for determining these rates on a regional basis for the production of critical load maps have been suggested by the official bodies which are responsible for co-ordinating the European critical load mapping efforts. These methods are largely correlations which require a knowledge of the soil parent material and/or the soil mineralogy. The purpose of this paper is to review these weathering rate calculation methods and to assess whether it is currently possible to calculate numerically accurate critical loads for the production of regional critical load maps. A consideration of the data used to generate these methods and comparisons of the weathering rates calculated using various methods leads to the conclusion that at present it is not. Further work is needed to develop and maintain the initial credibility of critical loads both scientifically and as an aid to policy decisions. (C) 1999 Elsevier Science Ltd. All rights reserved  
  Organisation Abschlussarbeit  
  Herausgeber Erscheinungsort Editor  
  Sprache Sprache der Zusammenfassung Originaltitel  
  Editor der Reihe Titel der Reihe Kurztitel der Reihe  
  Band der Reihe Ausgabe der Reihe Edition  
  ISSN 0269-7491 ISBN Medium  
  Bereich Expedition Konferenz  
  Notizen J 23 Geprüft nein  
  Rufnummer LWF @ daniel.morovitz @ 13 Signatur 395  
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