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In this paper, aboveground biomass and basic nutrients removal, nitrogen (N) and phosphorus (P), was analyzed by the use of reed as the main component of Constructed Wetland System (CWS) “Gložan”. In almost ideal conditions of temperate continental climate, with favorable substrate humidity, due to the constant inflow of municipal wastewater, reed populations reach a high density, on average 217 ind/m 2 . The reed produces significant aboveground biomass, fresh weight (FW) of 144.21 g/plant and dry weight (DW) of 77.04 g/plant, with the largest share being per tree (87.49 g FW/plant, 48.17 g DW/plant), then leaf (49.45 g FW/plant, 24.89 g DW/plant) and the smallest inflorescence (7.27 g FW/plant, 3.99 g DW/plant). The results obtained in this way indicate that the largest amount of nitrogen was removed by leaves, then by stems and, the smallest by inflorescences, 181.07 g/m 2 , 97.73 g/m 2 , 23.41 g/m 2 , respectively. Thus, an average of 302.21 g/m 2  of nitrogen was removed by the entire aboveground part of the reed. Also, the largest amount of phosphorus was removed by leaves, then by stems, and the smallest by inflorescences, 5.72 g/m 2 , 4.82 g/m 2  and 2.57 g/m 2 , respectively, while the entire aboveground part of the reed is on average about 13.11 g/m 2 .

international journal of phytoremediation

Removal of nitrogen and phosphorus by aboveground biomass of  Phragmites australis  in Constructed Wetland System under the conditions of temperate continental climate