Basic features and monitoring methodologies of atmospheric nitrogen deposition
Atmospheric nitrogen (N) deposition,including dry and wet deposition,is an important inorganic and organic N source for ecosystems,and also a key link of the N biogeochemical cycle.Recently,considerable active nitrogen has been emitted into the atmosphere due to enhanced human activities.High N emission leads to high deposition which has caused a series of environment risks,and more attentions have been focused on this issue.This article gave an overview of the basic content about the present N deposition research,such as the component,process,spatial and temporal variation,as well as ecological effect.Then the sampling methods of wet and dry deposition in the field,analysis methods in laboratory and primary techniques of N source identification were summarized.The N deposition research trend in the future was emphasized.
atmospheric nitrogen depositiondry and wet depositionecological effectcritical loadsmonitoring method
国家科技期刊平台
NSTL
万方数据
维普
