The Odra Estuary as a Filter and Transformation Area

✍ Scribed by Lampe, R.

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 372 KB
• Volume: 27
• Category: Article
• ISSN: 0323-4320
• DOI: 10.1002/(sici)1521-401x(199911)27:5<292::aid-aheh292>3.0.co;2-z

✦ Synopsis

The Odra Estuary is one of the most polluted coastal waters of the southern Baltic. To investigate how and whether the estuary acts as a filter and transformation area for the fluviogenic material, different models were developed and an intensive monitoring programme was carried out. Summarizing different methodological approaches, it could be shown that the total system filter capacity reaches 2...5 % for nutrients and 10...15 % for some heavy metals related to the current mean annual input. In the western part of the estuary, the retention is more important and amounts to 10...40 % of the annual nutrient yield. Carbon flux studies revealed that both a reduction of the inputs and more internal and external nutrient sinks are needed to reverse the anthropogenic eutrophication process.