摘要

Ex situ research was carried out under aerobic and anoxic conditions, pertaining to the undisturbed cores of the bottom sediments within the Solina and Myczkowce complex of dammed reservoirs, within the scope of assessing their capacities related to retention of phosphates. The sediments, in the examined reservoirs (excluding the sandy littoral deposits) turned out to have a great phosphorus retention capacity, especially under aerobic conditions. Phosphorus retention, under anoxic conditions, was less intense within the sediments of both reservoirs. The sandy littoral deposits, even though the total phosphorus, mobile fractions and organic matter contents were lower, turned out to be in possession of the highest capacity to release the phosphates under anoxic conditions (the highest value of zero equilibrium phosphate concentration EPC-0). At the same time, the capacity of phosphorus retention was insignificant. In case of the Solina and Myczkowce reservoirs, phosphorus deposition in bottom sediments outweighed the processes of phosphorus release. This is proven mainly by the low capacity to release the phosphates, and high level of retention capacity in most of the sediments.

  • 出版日期2016