摘要
近年来生态系统氮素需求、投入和排放的研究和调控不断细化和深入,文章从食物链角度对氮素养分利用动态特征及其变化规律展开研究,综述了氮素养分流动消耗状况及其环境影响机理,指出了食物链氮素养分流动研究过程中存在的问题以及今后的发展方向,为实现氮素(或养分)资源的高效利用和综合管理提供科学依据。
On the basis of research results and literature data in recent years,research and regulation of nitrogen demand,inputs and emissions are more detailed and in-depth in ecological system.This paper studies on nitrogen dynamics from the perspective of food chain can fully explore nitrogen utilization of characteristics and change rules,which reviews flow characteristics of nitrogen and its environmental impacts,and points out the existing problems and the direction of development in the future in which the research process of nitrogen flow in food chain.Moreover, this provides a scientific basis for efficient utilization and comprehensive management of nitrogen or nutrients.
出处
《湖南农业科学》
2014年第6期42-45,共4页
Hunan Agricultural Sciences
基金
国家科技支撑计划课题(2012BAD15B04)
省教育厅平台项目(11K034)
关键词
食物链
氮素
养分流动
环境问题
综述
Food Chain
Nitrogen
Nutrient flow
Environmental problems
Review
