淮安市有渍害低产田32.6万亩,虽已建立了灌排水系和田间墒网,由于土壤透水性差,雨后涝去渍存,仍制约农业生产的发展,粮食亩产徘徊在300kg左右.为改造低产田,1989年水利部下达12万亩鼠道排水工程试验示范任务,由南京水科院、省水利厅、淮安市水利局共同承担,在 Huai’an City, there are 136,000 mu of low-yielding paddy soil damage, although irrigation and drainage systems have been established and the field moisture network, due to poor soil water permeability, rain and waterlogging to survive, still restricts the development of agricultural production, grain hovering around 300kg per mu. In order to transform the low-yielding fields, in 1989, the Ministry of Water Resources issued a test demonstration task of releasing 120,000 mu of rat drains. It was jointly undertaken by Nanjing ASTRI, the Provincial Department of Water Resources and Huai’an Water Resources Bureau.