BALWOIS 2004 Ohrid, Macedonia, 25-29 May 2004   WATERSHED REGULATION AND MANAGEMENT OF METROPOLITAN CITY OF ISTANBUL   Ahmet Demir, Mehmet Emin Birpinar, Gürdal Kanat Yýldýz Technical University, Istanbul, TURKEY kanat@yildiz.edu.tr Istanbul is one of the world’s most important cities in terms of history, culture, trade and tourism. Annual population increase is approximately 400.000. […]