Szukana fraza: [Abstract = "Aeration in the bay \(1\) is useful to the extent that it cheeks rotting and prevents further degradation. Aeration in the profundity \(2\), however, has negligible effects. It does limit the internal supply, but its range is small. The installation ofthis set of aerators was certainly a mistake. Such a big lake cannot be restored with the help of artificial point aeration, especially when the amount of biogens reaching the lake from the catchment is very great. By Vollenweider's criterion, the phosphorus inflow is 6\-9 times higher than the dangerous level."]

Wyników: 1