摘要
农业非点源污染是一种间歇发生、随机性、突发性、不确定性很强的复杂过程,因此,模型化研究一直是非点源污染研究领域的一个核心内容。该文回顾了农业非点源污染预测模型的发展,简要阐述了国外农田尺度和流域规模尺度农业非点源污染模拟模型的功能和研究进展,对中国非点源污染预测、模型发展及存在问题进行了论述,提出从农业生产和水环境保护的角度去探讨污染物运移特征和定量预测模型,结合3S技术,并考虑非点源污染的不确定性将是今后非点源污染模型研究的主要内容之一。
Agricultural non-point source pollution is a kind of complex process with the characteristics of intermittent, random, sudden and uncertain emergence. Thus, the modeling study is an important content in the field of non-point source pollution at all times. This paper reviews the development of the prediction model of agricultural non-point source pollution, briefly illustrates the function and research advances of foreign agricultural non-point source models at the field scale and watershed scale, discusses the prediction, model development and available problems of non-point source pollution in China. It is proposed that the study of pollutant transport and prediction model should be based on the point of view of integrated agricultural production and water environmental protection. And one of main contents of non-point source pollution is to consider the uncertain characteristics of non-point source pollution and to combine 3S techniques with non-point source model.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2007年第5期265-271,共7页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金重点项目(50639040)
水利部"948"计划技术创新与转化项目(CT200404)
关键词
农业非点源
污染
预测模型
地理信息系统
agricultural non-point source pollution prediction model GIS
