Advances in Earth Science ›› 2022, Vol. 37 ›› Issue (10): 1037-1048. doi: 10.11867/j.issn.1001-8166.2022.065

Previous Articles     Next Articles

Research Progress on the Mechanisms of Nitrogen Transfer and Removal in Riparian Buffer Zones

Yuqing CHEN 1 , 2( ), Haiyang XI 1( ), Wenju CHENG 1 , 2, Xinyue ZHAO 1 , 2   

  1. 1.Northwest Institute of Eco-Environment and Resources, Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences, Lanzhou 730000, China
    2.University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-04-26 Revised:2022-08-01 Online:2022-10-10 Published:2022-10-18
  • Contact: Haiyang XI;
  • About author:CHEN Yuqing (1997-), female, Zibo County, Shandong Province, Master student. Research areas include hydrological and water resources in arid areas. E-mail:
  • Supported by:
    the “Western Light”—Key Laboratory Cooperative Research Cross-Team Project of Chinese Academy of Sciences “Research team of hydroecological processes in inland river basins”(xbzg-zdsys-202103);The Major Science and Technology Project in Inner Mongolia Autonomous Region of China “The fragile environmental security situation and its risk assessment of the Badain Jaran Desert”(zdzx2018057)

Yuqing CHEN, Haiyang XI, Wenju CHENG, Xinyue ZHAO. Research Progress on the Mechanisms of Nitrogen Transfer and Removal in Riparian Buffer Zones[J]. Advances in Earth Science, 2022, 37(10): 1037-1048.

As transitional zones between terrestrial and aquatic environments, riparian buffer zones play an important ecological role in preventing and regulating nitrogen (N) pollution in water bodies. Based on domestic and international research results, core issues, such as the N migration path, N removal method, proportion of the riverbank buffer zone, and the influence mechanisms of various factors in the riverbank buffer zone, were summarized. The results were as follows: the N migration process of the riparian buffer zone involved four pathways, including surface water runoff, downpour, and river-groundwater mutual transport. N could be consumed and converted by chemical or physical mechanisms during its transport in the riparian buffer zone, and the consumption rate exceeded 90%. The riparian buffer zone played an important role in preventing water pollution. The contribution rates of denitrification and plant uptake to N removal were 5.0%~82.0% and 0.6%~59.4%, respectively. The anaerobic ammonia oxidation process was an important method for removing N from the riverbank buffer zone. The efficiency of N removal from riverbank buffer zones could be improved by increasing the width of the riverbank buffer zone and improving the vegetation cover. A research framework for the N removal from the riverbank buffer zone has been established; however, further in-depth analysis and exploration studies based on methods and multi-factor coupling relationships are still required in the future.

No related articles found!
Full text