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2017 | 26 | 6 |

Tytuł artykułu

Water quality variation characteristics in stormwater period and on weihe river time scale

Autorzy

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Based on 2005-15 water quality data and measured flood data in 2006-12 at Tongguan Bridge Section, storm-period water-quality characteristics and different time-scale water-quality characteristics have been analyzed for the Weihe River and its basins. The interannual and quarterly mean concentrations of COD, NH₃-N, DO, and river pH value are calculated to evaluate pollution characteristics. Water quality in flood and non-flood periods were monitored to explore the relationship between peak flows and water quality in stormwater. The results showed that in the stormwater period, index concentrations and their fluctuation ranges decreased and were reduced gradually with the increase of peak flow. When peak flow was in the range of 480-680m³/s, concentrations of COD and NH₃-N had the same trend of increasing and decreasing in general. During 2005-15, river pH value fluctuated in the range of 7 to 8, and pH value in the second quarter was slightly higher than in the other three quarters. Water quality of the Weihe improved significantly after 2010.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

26

Numer

6

Opis fizyczny

p.2495-2505,fig.,ref.

Twórcy

autor
  • University of Chinese Academy of Sciences, Beijing, China
  • Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
autor
  • State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi’an 710048, China
autor
  • University of Chinese Academy of Sciences, Beijing, China
  • Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
  • Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China.
  • Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences,Beijing, China
autor
  • University of Chinese Academy of Sciences, Beijing, China
  • Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China

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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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