Water Column Chemical Dynamics Investigation via Multivariate Statistical Matrix Analysis to Evaluation of Hypoxia Potential Factors in Zarivar Lake

摘要

The relation of nutrients from agricultural activities in the Zarivar Lake catchment and hypoxia potential was examined using a novel application of a matrix analysis due to summer water column sampling in two routes, 6 stations and 4 various depths. It is surrounded by local agricultural activities and one seasonal river is terminated to it. Due to recent years the aquatic life of Zarivar Lake was under serious threat. Water quality study is one of the substantial measures that could be carried out since water quantity has been subjected to drought and low precipitation. Field study was planned in structured regular sampling stations in two straight routes and 24 samples in aggregation. Hypoxia potential investigation in closed shallow water body via current standards was done . Results of analysis demonstrate the potential of hypoxia in closed shallow water body. Significant effects of geological characteristics in hypoxia potential in figure out due to matrix analysis. Comparison of the results with the long-term data on water quality led the conclusion toward a suggestion on the effects of water catchments' activities during land use and land cover (LU/LC) changes over the years. Sources of nutrients associated biological parameters and macro indicators like submerged plants continue to verify and strengthen the relationship between the nitrogen loads of the LU/LC changes. The additional findings support the new hypoxia potential indicator in Zarivar Lake.