Vertical movement patterns of inorganic nitrogen in the ErBai Fang Zi Wetland
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DOI：10.7606/j.issn.1000-7601.2005.02.14
Key Words: wetland  nitrate nitrogen  ammonia nitrogen  penetration curve  vertical movement
Author NameAffiliation
BAI Jun-hong Institute of Geographic Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China；Northeast Institute of Geography and Agricultural Ecology，Chinese Academy of Sciences， Changcun Jilin 30012，China 
OUYANG Hua Institute of Geographic Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China 
DENG Wei Northeast Institute of Geography and Agricultural Ecology，Chinese Academy of Sciences， Changcun Jilin 30012，China 
WANG Qing-gai ．Chinese Research Academy of Environmental Sciences，Beijing 130012，China 
SONG Xin-shan College of Environmental Sciences and Engineering，Donghua University，Shanghai 200051，China 
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Abstract:
      The Er Bai Fang Zi wetland was chosen as the research target in simulating the vertical movement of nitrate nitrogen and ammonia nitrogen in wetlands at a certain water table. The results revealed that the penetration curve of nitrate nitrogen in wetland soils had an asymmetric multi-peak structure while the penetration curve of ammonia nitrogen had a structure its peak inclining toward one side and its tails protracting; the peaks and peak times and peak values of the penetration curves of nitrate nitrogen and ammonia nitrogen significantly differed among different soil layers.
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