Ｒesearch on the Water Quality Trend of Input Ｒivers of Urban Drinking Water Source of a High Plateau City
———Taking Muyanghe of Songhuaba Ｒeservoir for Example
1．Kunming Songhuaba Ｒeservoir Management Office，Kunming 650201，China;
2．Kunming Institute of Environmental Science，Kunming 650032，China，;
3．Yunnan Institute of Water Conservancy and Hydropower Science Ｒesearch Institute，Kunming 650228，China;
4．Institute o
Plateau city reservoir appears to be the uppermost and only root of drinking water source, the water quality of joint river resdirect will influence on water resources security and ecological civilization construction.Based on the investigation data of the Muyanghe of jointing river in Kunming songhuaba reservoir from 1996 to 2017, the fractal theory and the R/S model were used to analyze the change trend of the annual mean amount and parameter values in different water periods of total nitrogen,total phosphorus,ammonia nitrogen and permanganate index, the results showed that Hurst phenomenon of total nitrogen,ammonia nitrogen,permanganate index of annual average and its indexes in different water periods were obvious, total phosphorous and ammonia nitrogen continuously decreased,other two indexes continuously increased.Except for total phosphorous ,persistent strength of change trend of three indexes in dry season were more than year-round, wet season and normal water season.
DUAN Shun-qiong，YANG Yan，MA Xian-ying，WANG Jing，LI Jing，LUO Shao-qin.
Ｒesearch on the Water Quality Trend of Input Ｒivers of Urban Drinking Water Source of a High Plateau City
———Taking Muyanghe of Songhuaba Ｒeservoir for Example[J].China Rural Water and Hydropower, 2019(3): 55-57
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