Evaluating the Biogenic Load of Water Ecosystem in the Lake Sevan

Abstract

Investigations have been conducted to evaluate the biogenic load of water ecosystems caused by harmful emissions from the settlements near the catchment basin of the Lake Sevan, livestock farms and complexes, rangelands, as well as from coastal flooded areas.
According to calculations, residual amount of biogenic elements (nitrogen, phosphorus) is accumulated in water ecosystem in case of positive lake water balance, which gets increased parallel to the continuous water level rise. Hence, discharging the biogenic elements from the streams flowing into the lake and cleaning the flooded areas are considered to be priority measures.