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International Workshop on Diffuse Pollution-Management Measures and Control Technique (IWDCT 2010 E-BOOK)

Huainan,China,10.27-10.29,2010

ISBN: 978-1-935068-38-9 Scientific Research Publishing, USA

E-Book 394pp Pub. Date: October 2010

Category: Earth & Environmental Sciences

Price: $70

Title: Migration and Transformation of Ammonia-Nitrite-Nitrate in Groundwater in the Jinghuiqu Irrigation Area
Source: International Workshop on Diffuse Pollution-Management Measures and Control Technique (IWDCT 2010 E-BOOK) (pp 138-142)
Author(s): Ling Jiang, School of Environmental Science and Engineering, Chang’an University, Xi’an, 710054, China
Xiu Yi, School of Environmental Science and Engineering, Chang’an University, Xi’an, 710054, China
Kun-rong Lai, School of Environmental Science and Engineering, Chang’an University, Xi’an, 710054, China
Abstract: The current situation of nitrogen contamination indicates that the spatial distribution of 3-nitrogen content is characterized by strong anisotropy and declining pollution. By analyzing the influencing factors and source of 3-nitrogen, this paper concludes the factors that the groundwater is polluted by nitrogen is the excessive use of chemical fertilizer in the farmlands, the leakage of the sanitary and industrial sewage and dry and wet deposition contamination of atmospheric nitrogen oxide. The migration and transformation of 3-nitrogen are influenced by aquifer lithological character and groundwater depth. The nitrate nitrogen in soil profile increases with depth reduction, and the ammonia nitrogen remains, which indicate that nitrate nitrogen is easier dissolved in water than ammonia nitrogen.
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