THE GOULANDRIS NATURAL HISTORY MUSEUM
GREEK BIOTOPE WETLAND CENTRE

   
   



Funded by the Hellenic Ministry of Foreign Affairs
HELLENIC AID

 

RESTORATION MEASURES: Application of environmental friendly agricultural practices

The objective of this measure is to promote/increase the application of environmental friendly agricultural practices, for water saving and environmental protection purposes.

Although it is well known that surface water use for any purpose in the catchment affects the Lake’s water level, the question arising is whether groundwater exploitation affects it as well, or not. Within the framework of the present project, EKBY has elaborated a relevant investigation, which was based on available (although limited) data and on the use of a specialized software (MIKE SHE - Danish Hydraulic Institute) for the simulation of the lake’s hydroperiod. Three simulation scenarios were examined and the conclusions drawn are:

a)   Irrigation affects the lake’s water level since reduction of the irrigated area by 10%, 30% and 100% (no irrigation), shows a relevant water level rise by 0.15 m, 0.3 m and 0.40 m respectively.

b)   Even in the case of no irrigation in the catchment, water level drops following the same general trend observed in the cases of irrigated scenarios. This shows that the lake’s hydroperiod is mainly affected by the prevailing environmental conditions (precipitation and temperature).

c)   The transportation of water from an external source, positively affected the lake’s water level.

The following agro-environmental practices are proposed:

  • Implementation of an agro-environmental measure aiming at the reduction of the total irrigated area, by at least 30%. This may be achieved through the replacement of irrigated crops by non irrigated ones or by expanding the fallow areas or both. The measure should be applied to the areas adjacent to the lake.
  • Public awareness concerning the use of water saving irrigation techniques and farmers training. Proper irrigation scheduling should be part of the training for the farmers and for water users’ associations in the region.
  • Setting up of experimental fields where water saving techniques can be applied. Additionally, establishment of a meteorological station for the collection of data and further calculation of evapotranspiration in the cultivated areas.
  • According to the results of Scenario 3, water transportation from an external source to Lake Doiran at a rate of 0,25 m3/sec, is estimated to lead in approximately 1,4 m rise in the water level (at the end of the examined period). In the last years, FYROM transports water from 10 wells in the area of Gjavato, via a hydro-system to the Lake . It is noted that in case of water transportation from an external source to Lake Doiran, an Environmental Impact Assessment should precede, taking into account its transboundary character and according to the relevant provisions of national, European Union and international legislation.                                                                                                     Previous   Next
 

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