Abstract：
:Urmia Lake, as the largest lake in Iran borders, has a special role in the ecosystem of the region. The water level in this lake declines in recent year remarkably, so monitoring the lake water quality is important from an environmental view. In this research, the changes in the qualitative variables of the lake water (including electrical conductivity (EC), pH, total dissolved solids (TDS), and sodium adsorption ratio (SAR)) are compared with the changes in the lake's water level based on the Mann-Kendall nonparametric test. Further, abrupt change points in the time series of quality variables were detected by the Pettitt test. Studies were carried out on samples collected from five different stations during 2005-2015. The results showed that the water level of Urmia Lake had a significant decreasing trend and also, except for TDS, the other investigated quality variables had negative trends during the studied period. It was observed that in general, the values of the Z statistic in the stations located in the eastern part of the lake were more than the stations located in the western part, and also the stations located in the northern parts had a higher trend than those in the south of the bridge.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Sattari MT,Mirabbasi R,Jarhan S,Shaker Sureh F,Ahmad Sdoi
10.1007/s10661-020-08577-8subject
Has Abstractpub_date
2020-09-07 00:00:00pages
623issue
10eissn
0167-6369issn
1573-2959pii
10.1007/s10661-020-08577-8journal_volume
192pub_type
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