were identified: the water should flow throughout the whole year and should not dry out, the cross section should be as narrow as possible and the fall of the longitudinal profile as small as possible, the profile above, if possible, should have an extension for the greater water accumulation, the riverbed should not have too much silt, catchment area next to the profile should not be too big, the profile should be accessible and well connected to the road network, the location should be close to forest plantations