THE PERMISSIBLE INPUT OF BIOGENIC ELEMENTS TO WATER BODIES WITH SLOWED AND MODERATE WATER EXCHANGE

The article presents the outputs of researches on determination of permissible input of biogenic matter to water bodies with different types of moderate and slowed water exchange: that is phytoplankton, phytoplankton/macrophyte, and macrophyte types. We have shown that the permissible input of biogenic matter to water bodies with moderate and slowed water exchange should be determined with the focus on their actually registered trophic level and its permissible changes appointed depending on the types of this water bodies use. Determination of the admissible increase of the total phosphorous inflow to water bodies of phytoplankton, phytoplankton/macrophyte and macrophyte types is to be done through determination of the permissible, from the point of view of the water user, increase of either the biomass or the phytoplankton, or the supreme aquatic vegetation. The author gives the equations for determination of the permissible inflow of the total phosphorous to phytoplankton, phytoplankton/macrophyte and macrophyte water bodies