This decrease in areal extent is in accordance with the lake level measurements, which show a constant drawdown of the water level, which, during this time period, was
primarily due to increased agricultural use and, secondarily, due to dewatering of the mines and industrial use. In the Amynteon basin, which is a sub-basin of the Vegoritida
basin, the number of water wells used for irrigation has constantly increased during the last 30 years (Fig. 4), as has the amount of irrigated land (Dimitrakopoulos 2001; Lykoudi et al. 2003). Additionally, from Fig. 3, it is Table 1 Decreases in the areal extent of the lake relative to the reference topographic map
LANDSAT 1986 SPOT 1996 LANDSAT 1999 ASTER 2001
-7.4