WANG Ji-zeng, WAN Hong-fu, WU Zhi-feng, et al. Monitoring on Loss Characteristics of Non-point Source Pollutants——An Case Study at Zhengkeng Watershed in Zhuhai City of Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2003, 22(1): 56-59.
WANG Ji-zeng, WAN Hong-fu, WU Zhi-feng, et al. Monitoring on Loss Characteristics of Non-point Source Pollutants——An Case Study at Zhengkeng Watershed in Zhuhai City of Guangdong Province[J]. Bulletin of Soiland Water Conservation, 2003, 22(1): 56-59.DOI:
the concentration of the non-point source pollutants in runoff changes are monitored and studied.The results are as follows:the concentration of every pollutant is high in early stage of producing flow
then tends to decline.For the soluble pollutant
the concentration ranges small
like milder wavilness in the course of whole precipitation-runoff.As for difficult dissolving pollutant
particularly for total phosphorus
the concentration in the course of whole changes acutaly like zigzag.This indicates that there is certain confinement to the concentration scope dissolved and achieved for dissolve component under a certain water environment condition.Its dissolving characteristics are influenced obviously possibly by the water environment condition than by the flow rate change.