摘要
大气氮沉降作为营养源和酸源,沉降数量的急速增加,将严重影响生态系统的生产力和稳定性,对农田生态系统的影响日益显现。本文简要介绍了大气氮沉降的概念、来源和研究方法,梳理了近年来我国红壤区大气氮沉降的形态、数量及其对农田生态系统的影响,提出了红壤农田生态系统大气氮沉降当前存在的问题及今后的发展趋势。
An important source of plant nutrient and soil acidification, increased N deposition from the atmosphere will greatly impact the production and stability of global terrestrial and aquatic ecosystems. This paper introduced the concepts, sources and methods of atmospheric nitrogen deposition and reviewed recent literatures on the forms and amounts of atmospheric nitrogen as well as its ecological effects on red soil agro-ecosystems. Finally, the existing problems and research trends of atmospheric nitrogen deposition were proposed in red soil agro-ecosystems.
出处
《土壤》
CAS
CSCD
北大核心
2015年第2期245-251,共7页
Soils
基金
重大科学研究计划项目(2014CB953802)
国家青年基金项目(41201206)
国家支撑计划项目(2011BAD41B01)资助
关键词
大气氮沉降
红壤
生态效益
活性氮
农田生态系统
Atmospheric nitrogen deposition
Red soil
Ecological effect
Reactive nitrogen
Agro-ecosystem
