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SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER

XIA Xing-hui CHEN Jing-sheng CAI Xu-yi

XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. 中国地理科学, 2001, 11(4): 315-320.
引用本文: XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. 中国地理科学, 2001, 11(4): 315-320.
XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. Chinese Geographical Science, 2001, 11(4): 315-320.
Citation: XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. Chinese Geographical Science, 2001, 11(4): 315-320.

SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER

基金项目: Under the auspices of the National Natural Science Foundation of China (No. 49671017).
详细信息
    作者简介:

    XIA Xing-hui(1971- ), female, a native of Hunan Province, Ph. D. Her research interest includes environmental chemistry.

  • 中图分类号: X143

SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER

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出版历程
  • 收稿日期:  2001-10-16
  • 刊出日期:  2001-12-20

SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER

    基金项目:  Under the auspices of the National Natural Science Foundation of China (No. 49671017).
    作者简介:

    XIA Xing-hui(1971- ), female, a native of Hunan Province, Ph. D. Her research interest includes environmental chemistry.

  • 中图分类号: X143

摘要: Spectrum analyses of water quality time series have been carried out for five hydrometric stations including Wuhan hydrometric station of the Changjiang (Yangtze) River, etc. The fluctuations of Ca2+, Mg2+ and HCO3- concentra tions in river water under different physical geography conditions have about two-year cycle which is corresponding to hydrometeorological quasi-biannual-oscillation(QBO). Na+, Cl- SO42- have about two-year cycle in the area lightly affected by human activities while two-year cycle doesn't exist in the area heavily affected by human activities. All the fluctuations of major ions have about three-month cycle. The river discharge fluctuation accounts for 43.9%,45.1%, 54. 3%, 33.9%, 30.3% and 42.7% of the variance of Ca2+, Mg2+, HCO3-, Na+, Cl-, SO42-, respectively, at Wuhan from 192 to 1985. According to the spectrum characteristic of major ions, the duration of the time series has to be at least 13 years for trend analysis of monthly water quality data.

English Abstract

XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. 中国地理科学, 2001, 11(4): 315-320.
引用本文: XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. 中国地理科学, 2001, 11(4): 315-320.
XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. Chinese Geographical Science, 2001, 11(4): 315-320.
Citation: XIA Xing-hui, CHEN Jing-sheng, CAI Xu-yi. SPECTRUM CHARACTERISTICS OF MAJOR IONCONCENTRATIONS AT WUHAN SECTOIN OF THECHANGJIANG RIVER[J]. Chinese Geographical Science, 2001, 11(4): 315-320.

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