Hidrológiai Közlöny 2007 (87. évfolyam)
6. szám - XLVIII. Hidrobiológus Napok: Európai elvárások és a hazai hidrobiológia Tihany, 2006. október 4–6.
54 HIDROLÓGIAI KÖZLÖNY 2007. 87. ÉVF. 6. SZ. Tierney, D. (2006): AGIG, Macrophytes - technical report. In: Poikane, S. (ed): Milestone 6 Report. - European Commission DG JRC, Institute for Environment and Sustainability: 1 - 5. Van den Berg, M., H. Pot. R. Coops, W. Altenburg, R. Nijboer, van den Broek, T„ M. Fagel, G. Arts, R. Bijkerk, van Dam, H., T. Ietswaart, van der Molen, J., K. Wolfstein, de Jong, D. and H. Hartholt (2004): Achtergronddocument referenties en maatlatten macrofyten. STOW A, Utrecht. Van de Bund. A. C. Cardoso, A-S. Heiskanen and P. Nőges (2004): Overview of common intercalibration types 23/04/04. Final version 5.1., - Ecostat WG 2A: 1 -38. Van der Molen, D. T., W. Altenburg, G. Arts, J. G. Baretta-Bekker, van den Berg, M. S„ van den Broek, T., R. Buskens, R. Bijkerk, H. C. Coops, van Dam, H„ van Ee, G„ R. Franken, B. Higler, T. Ietswaart, N. Jaarsma, de Jong, D. J., A. M. T. Joosten, M. Klinge, R. A. E. Knoben, J. Kranenbarg, R. Noordhuis; F. Twisk and K. Wolfstein (2004): Referenties en maatlatten voor meren ten behoeve van de Kaderrichtlijn Water. STOW A, Utrecht. Willby, N„ J.-A. Pitt and G. Phillips (2006): Summary of approach used in LEAFPACS for defining ecological quality of rivers and lakes using macrophyte composition. - In: Poikane, S. and Tierney, D.: Milestone 6 report Lake GIGs: AGIG, Macrophyte Technical Report, Annex A Part IIIC, European Commission DG JRC: 19 30. WFD (2000): Directive 2000/60/EC of the European Parliament and the Council of 23 October 2000 establishing a framework for Community action in the field of water policy. - Official Journal of the European Communities L. 327/1-72. 3. ábra: Az összesített ökológiai állapot osztályzatok %-os eloszlása az L-CB1, L-CB2 és L-CB3 tavaknál féljegyekkel (A), azok lefelé (B) és felfelé kerekítése után (C) Comparison of different macrophyte based assessment methods within the Lakes-Central/Baltic GIG G.-Tóth, L.- S. Poikane —G. Free - E. Penning -H. Mäemets - A, Kolada, -J. Hanganu - Jo-A. Pitt —M. Van Den Berg Abstract: A common botanical dataset was established containing abundance data of 789 macrophyte species from 313 different lakes from ten European countries. Various common species and genera were identified to be indicative for reference and impacted conditions within the whole Central-Baltic GIG. Macrophyte assemblages of sites do not necessarily cluster per lake type and correspond better to the source countries. Other factors such as regional climate effects and/or artificial effects due to differences in monitoring techniques might also contribute to this effect. When applying a variety of available national methods for macrophyte status assessment, the results produced sometimes differed 1 to 2 full quality classes for the same site. It is foreseen that the intercalibration exercise need to be based on more detailed data considering the seasonal patterns and also the latitudinal differences within the L-CB GIG. Keywords: Ecological status, macrophyte indicators, national methods, Water Framework Directive Klossy Irén alkotása (Fametszet, Magyar képek sorozat)
