Nitrogen Pollution Characteristics and Genetic Analysis of FengHe River and its Tributaries

Abstract:

In December 2011,April 2012 and September 2012, the surface water of the Fenghe River and its tributaries were collected.The temporal variation characteristics of concentration of nitrate nitrogen (NO₃ ^-- N), ammonium nitrogen (NH₄ ⁺ - N), and total nitrogen (TN) in the water were studied. Combined with basin characteristics such as land use and precipitation, causes were analyzed. The results showed that NO₃^-- N content in water gradually increased along the direction of flow spatially, which was closely related to the spatial distribution of land use and pollution sources distribution. In dry period and flood period, the NO₃^-- N content in water was less than that in usual discharge period. NO3^-- N content t in April,2012 reflected the nitrate nitrogen pollution characteristics in storm period. Fenghe River and its tributaries, from source to import into the Weihe River, the concentration of ammonium salt little changed, and at the most sample sites the ammonium salt concentration were not more than 1 mg/L. NO₃ ^-- N is drainage nitrogen main stable form in Fenghe River. TN content in Fenghe River system was obviously higher than that of the vclass of the surface water environment quality standard.

• Periodical: Applied Mechanics and Materials (Volumes 316-317)
• Pages: 227-230
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.316-317.227
• Online since: April 2013
• Authors: Jian Hui Zhi, Ai Zhong Ding, Li Rong Cheng, Shu Rong Zhang, Xuan Zhao
• Keywords: Basin Characteristics, FengHe River, Nitrate Nitrogen (NO₃^-- N), Spatial Variation, Temporal Variation, Tributaries of FengHe River

References

[1] Ahti Lepistö, Kirsti Granlund, Pirkko Kortelainen, et al. Nitrogen in river basins: Sources, retention in the surface watersand peatlands, and fluxes to estuaries in Finland. Science of the Total Environment, 2006, 365: 238–259

DOI: 10.1016/j.scitotenv.2006.02.053

[2] Wulff F, Rahm L. Longterm, seasonal and spatial variations of nitrogen, phosphorus and silicate in the Baltic: an overview. MarEnviron Res,1988,26:19–37.

DOI: 10.1016/0141-1136(88)90032-3

[3] SU De-sen, CHEN Han-zhen, LIN Ru-kai et al. Nitrogen Pollution of Streams in Wuyishan National Key Scenic Area. Fujian Journal of Agricultural Sciences, 2011,26(4):642～645.

[4] WEI Zhen-zhen. The Research on the Nitrogen Pollution Status and Transmission Flux in Lanzhou Section of the Yellow River. Lanzhou University of Technology,2008.5.

[5] LI Zhi-bo, WANG Qi-chao, CHEN Jing. Research of agroecosystem nitrogen cycle. Soil and Environmental Sciences, 2002, 11(4):417~421.

[6] Brian H. Hill, David W. Bolgrien. Nitrogen removal by streams and rivers of the Upper Mississippi River basin..Biogeochemistry,2011, 102:183–194

DOI: 10.1007/s10533-010-9431-8

[7] Alexander R B, Boyer E W, Smith R A, et al. The role of head water streams in downstream water quality. J Am Water Res Assoc ,2007,43:41–59

DOI: 10.1111/j.1752-1688.2007.00005.x

[8] CHEN De-sheng. Simulation of water environment and assessment of water pollution control on Fenghe watershed. Beijng Normal University, 2011.5.