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三江平原是我国沼泽化土地集中分布最大的地区．本课题应用农业生态系统学和地表排水原理，采取工程措施、农业耕作措施与土肥改良相结合实现了沼泽化土地和沼泽地资源的优化配置和综合开发利用，建立了“旱田、水田、草场”三元结构土地资源利用模式．通过综合治理取得了较好经济效益、社会效益和生态效益，为沼泽化土地及中低产田改良提供了范例．
Sanjiang Plain is China’s swampy land concentrated distribution of the largest area. This project applied the principles of agroecology and surface drainage to take the engineering measures, the combination of agricultural tillage and soil improvement to realize the optimal allocation and comprehensive utilization of the resources of swampy land and marshes, and set up “dryland, paddy field and pasture” Ternary structure of land resource utilization model. Through comprehensive management has made good economic, social and ecological benefits, for the swamp of land and middle and low yield fields to provide an example of improvement.