摘要
本文系赴美考察报告。指出美国河流、湖泊和地下水等主要水源的水质良好。当前，影响水源利用的主要因素是非点源污染，约占水污染的６８％，并详细介绍了美国为控制非点源污染采取的各种措施。
Abstract,A study tour report points outthe American main water sources-rivers,lakes and groundwater arein good quality, Recently, non-point source contamination playsa key role in water utilization,aecounting for 68 percent inwater pollution.And it introduces various measuresto control non-point sourcecontamination in America.
出处
《农业环境与发展》
1994年第1期23-26,共4页
Agro-Environment and Development
