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| Reservoir Pollution by Dry and Wet Deposition of Atmospheric Nitrogen in Typical Sand Area |
| Received:May 11, 2015 |
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| KeyWord:sand source areas;Dahekou Reservoir;total nitrogen;dry deposition;wet deposition |
| Author Name | Affiliation | E-mail | | LU Jun-ping | Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China | | | MA Tai-ling | Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
School of Management, Sanya University, Sanya 572000, China | nmg-hippo@163.com | | ZHANG Xiao-jing | Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China | | | LIU Ting-xi | Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China | | | YU Shu-yu | Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China | |
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| Abstract: |
| The water pollution caused by dry and wet deposition of atmospheric nitrogen has aroused wide concerns. In this study, Dahekou Reservoir, located in Beijing and Inner Mongolian sand source area, was chosen to quantify the contribution of dry and wet deposition of atmospheric nitrogen to reservoir pollution in sand area. The effects of different seasons on deposition fluxes were also compared. Results showed that the highest cumulative TN of dry deposition and wet deposition appeared in April and August, which was 382.02 kg·km-2 and 195.53 kg·km-2, respectively. Dry deposition was the main form of the atmospheric nitrogen deposition. The monthly mean TN dry deposition flux was 2.9 folds of the monthly mean wet deposition flux. The wet TN deposition increased with increasing rainfall. In 2014, the atmospheric TN deposition contributed 7.15 t to Dahekou Reservoir, accounting for 19.91% of TN loads combined from Luan river and Tuligen river during the same period. |
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