University of Tehran Press Journal of Ecohydrology 2423-6098 5 1 2018 03 21 Evaluate the Water Quality and Trend of changes in quality parameters of ‎Kashkan basin Evaluate the Water Quality and Trend of changes in quality parameters of ‎Kashkan basin 23 36 64818 10.22059/ije.2017.228466.490 FA Hasan Torabi Poudeh 0000-0001-8157-7853 Parastoo Hamezadeh Journal Article 2017 03 09 In this paper Kashkan basin from upstream to downstream water quality changes were evaluated. First, the ‎process of long-term qualitative changes in two branches Kashkan (Khorramabad and Horod) was evaluated. ‎Mann-Kendall test was used to determine Routing data. For examination of water quality AqQA software ‎Schoeller diagram extracted and analyzed for each station. Information needed to assess water quality in terms ‎of agriculture was transferred to the diagram Will Cox and Classification of water was determined. At all ‎stations trend of discharge, negative and to further Water Quality Indicators the trend was positive. The results ‎showed that in both branch water quality parameters Decreased. Water quality changes after joining the two ‎branch Khorramabad and Herod At the station Poldokhtar was investigated‏.‏‎ At the station Poldokhtar Many ‎parameters were In a range between the value of them In two branches before joining But in some of them ‎also was violated this law and increased At the station Poldokhtar. Due to the reduction in flow rate and ‎increase of quality parameters, the basic premise was proven.‎ In this paper Kashkan basin from upstream to downstream water quality changes were evaluated. First, the ‎process of long-term qualitative changes in two branches Kashkan (Khorramabad and Horod) was evaluated. ‎Mann-Kendall test was used to determine Routing data. For examination of water quality AqQA software ‎Schoeller diagram extracted and analyzed for each station. Information needed to assess water quality in terms ‎of agriculture was transferred to the diagram Will Cox and Classification of water was determined. At all ‎stations trend of discharge, negative and to further Water Quality Indicators the trend was positive. The results ‎showed that in both branch water quality parameters Decreased. Water quality changes after joining the two ‎branch Khorramabad and Herod At the station Poldokhtar was investigated‏.‏‎ At the station Poldokhtar Many ‎parameters were In a range between the value of them In two branches before joining But in some of them ‎also was violated this law and increased At the station Poldokhtar. Due to the reduction in flow rate and ‎increase of quality parameters, the basic premise was proven.‎ https://ije.ut.ac.ir/article_64818_864b2e82af1c9cd3a129536508a5ca1b.pdf