区域粮食生产和消费中的氮素循环及向环境中的输出  

Nitrogen Cycling and Output to Environment Associated with Food Production and Consumption in Region

作　　者：韩秉进[1] 波多野隆介[2] 

机构地区：[1]中国科学院东北地理与农业生态研究所黑土生态重点实验室,黑龙江哈尔滨150081 [2]日本北海道大学大学院

出　　处：《农业系统科学与综合研究》2008年第3期289-291,共3页System Sciemces and Comprehensive Studies In Agriculture

基　　金：国家重点基础研究发展计划(2005CB121101)资助

摘　　要：地球变暖化、富营养化和酸性化是人类面临的严重生态环境问题。研究表明,这些问题的产生是氮碳循环量增加和向环境输出量增加的原因造成的。尤其是农田N的投入量年年在增加,N2O、N-NO3-发生量在迅速增长,对大气和地下水的影响日益严重。结合氮素循环研究现状,重点阐述氮素流通量收支模型的构成要素、如何根据氮素流通量收支模型推定农田的剩余氮素和废弃氮素,并简明扼要地阐明了向环境输出的氮素引发赤潮、地球变暖、酸化的过程及机理。Globle warming, eutrophication and acidity are the serious environment problems that the human beings have to face.The production of N2O and N-NO3^- increases rapidly with the rising N input to farm field year by year,which influences air and underground water more serious than ever before. The components in the model of input and output of N were discussed based on the resent research on N cycling. In addition, the surplus and discarded N was spectdated according to this model, and the process and mechanism for red tide, global warming and acidi- fication associated with the input of N to environment was also clarified.

关 键 词：氮素循环 粮食生产 氮素负荷 环境监测 

分 类 号：X131.3[环境科学与工程—环境科学]