Water
Oligotrophication of Lake Tegel and Schlachtensee, Berlin
Analysis of system components, causalities and response thresholds
Lake Tegel and Schlachtensee in Berlin show a uniquely pronounced trophic recovery in response to an abrupt and drastic (40- to 100-fold) reduction of their external phosphorus (P) load through P-stripping at their main inflow which exchanges the lake water volume about 5 times per year for Lake Tegel and about 1.5 times for Schlachtensee.