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Responses of riverine nitrogen export to net anthropogenic nitrogen inputs: A review.

ZHANG Wang-shou1,2, LI Xu-yong1, SU Jing-jun1   

  1. (1State Key Laboratory of Urban and Regional Ecology, Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; 2University of Chinese Academy of Sciences, Beijing 100049, China)
  • Online:2014-01-18 Published:2014-01-18

Abstract: Nitrogen (N) inputs caused by human activities potentially influences the aquatic environment. However, researches on N pollution in China are mainly discussed from the microscopic point of view, i.e. field experiment. Watershedscale diagnosis of N pollution has just started, leading to ambiguous identification of ecological problems, pollution issues and pollution potential at watershed scale. In this paper, relationships between net anthropogenic N inputs (NANI) and riverine N flux (RNF) and factors influencing these relationships at watershed scale had been investigated. This would help diagnose ecological and environmental problems at watershed scale, understand the roles of natural climate and human activities  in affecting N fluxes, and ultimately provide both theoretical and practical insights into environmental management decisions.