J4 ›› 2014, Vol. 13 ›› Issue (6): 60-62.

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Primary Study on Characteristics of Nitrogen and Phosphorus Losses in the Typical Small Watershed of
the Northern Area of Erhai Lake

  

  1. Institute of Eastern-Himalaya Biodiversity Research, Dali University, Dali, Yunnan 671003, China
  • Received:2014-02-27 Online:2014-06-15 Published:2014-06-15

Abstract:

The relationships of pollutant concentrations and precipitation-runoff were monitored at the outlets of the Fengyu River in July 2011. The results showed that the loads of nitrogen and phosphorus increased with the increasing of flux. Furthermore, the peak of pollutant concentrations early occurred than the peak of flux. For reasonably interpreting law of no-point source pollutants losses, the interval time of rainfall as well as production and life style of upstream should be considered in the future study.

Key words: no-point source pollution, rainfall-runoff, nitrogen and phosphorus

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