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现代农业面源污染是导致河湖水体富营养化的主要诱因之一。本文分析了现代农业面源污染的产生及其特征,按“源头控制、过程拦截、末端处理、灌溉回用”的思路,提出了现代农业面源污染控制系统(NPCMA),阐述了该系统中生态拦截沟、复合人工湿地、调蓄-灌溉等子系统的构建方法,并以巢湖西北角的东大圩现代农业示范区工程实例对该系统进行验证。分析表明NPCMA系统对现代农业面源污染控制与农业尾水再生利用具有显著的效果,可为类似经济发展模式地区的农业面源污染控制提供参考。
Modern agricultural non-point source pollution is one of the major causes of eutrophication of rivers and lakes. This paper analyzes the generation and characteristics of modern agricultural non-point source pollution. According to the idea of “source control, process interception, end treatment and irrigation reuse”, a modern agricultural non-point source pollution control system (NPCMA) This system is validated by the construction example of ecological interception ditch, composite constructed wetland, storage-irrigation subsystem and so on. The system is validated by the example of Dongdawei modern agricultural demonstration area in the northwestern corner of Chaohu Lake. The analysis shows that the NPCMA system has significant effects on modern agricultural non-point source pollution control and agricultural tailrace water recycling and can provide reference for agricultural non-point source pollution control in areas with similar economic development patterns.