农业非点源模型——AGNPS概述  

Introduction to Agricultural Non-point Pollution Source Model——AGNPS

作　　者：张瑛[1] 阮晓红[1] 

机构地区：[1]河海大学环境科学及工程学院,江苏南京210098

出　　处：《四川环境》2003年第5期63-66,共4页Sichuan Environment

摘　　要：非点源污染在国内外已越来越受到关注,其中农业非点源又占相当大的份额。由于非点源污染产生机制的特殊性,导致实地调查和试验研究不易实行。故而数学模型方法在这一领域尤其能够体现出它的优点,对它的研究也受到了学术界越来越多的重视。目前,国外已开发出了大量的非点源数学模型,而其中AGNPS模型是应用较为广泛者之一,并已在我国得到了应用。基于此,文中介绍了AGNPS模型的基本结构,主要包括水文、侵蚀和化学污染物的迁移三部分。自从该模型被建立以来,国外已对它进行了大量的研究,本文从研究最多的几个方面进行了讨论,即计算网格的优化、模型输入输出与GIS的结合以及模型的风险性等,以期为在我国的具体应用提供一定的参考。Nowadays,nonpoint source(NPS)pollution,which comes mainly from agricultural activities,is concerned as one important factor for water quality degradation in China and abroadBecause of the speciality of the generation of NPS pollution,the in situ investigation and experimental study are somewhat infeasibleTherefore,numerical methods appear to be useful in this research area,and more and more researchers pay attention to the study of numerical modeling Presently,plenty of numerical models are developed abroad,among which AGNPS is one of the most practicalThe basic structures(including hydrologic,erosion and pollutant transport)are introduced in this paper Since it was developed,much study has been carried out In this paper,aspects what are paid more attention are discussed,such as the optimization of cell design,the coupling of input and output with GIS,and the risk in practical usage Hope it can provide some references for application of this model in China

关 键 词：非点源污染 AGNPS 模型结构 

分 类 号：X592[环境科学与工程—环境工程]