摘要: This paper summaries the ecological and environmental research works in the Four Lake Area. A great deal of research and developing works have been done, which may be concluded into three kinds of models for a agricultural development. They are Model Ⅰ-developing and protecting of the lowland from lake reclamation, Model Ⅱ-development of ecological,three-dimensional agriculture, Model Ⅲ-the symbiotic and mixed culture in various types of waters.Great benefits of economy, society and ecology have been gained through the applications of experimental results of three agricultural developing models.