Because of the special geographical position,topographical condition and unsuitable interference in the waterlogging land of Jianghan Plain, the flood disaster and waterlogging disaster often occur, and the agricultural ecological environment is seriously damaged.

The forming reason of the waterlogging land in Jianghan Plain is about the factor of geology and geomorphology,the factor of meteorology and hydrology,and the factor of agricultural activity.

The agricultural ecological environment in waterlogging land has been becoming fragile because of the increasing pressure of severe outside ecological environment in the Yangtze basin and the unreasonable reclaimed land from marshes, and exploitation and utilization in lake areas.

According to the vast scale datum of investigation and experiment,from the basical ecological factors of water?soil?climate?biology and social economy condition,the paper evaluates the agricultural ecological environment of drainagerelated area in Jianghan plain,and gives the ecoeconomic harnessing cuntermeasures.

Study on Model of artificial pasture establishment in waterlogged land;

A definition of waterlogged land was given,and the connection and distinction between waterlogged land and cropland vulnerable to waterlogging, and wetland were pointed out .

Taking Sanhu Farm in Hubei Province as an example and by means of the geo-statistical method, the paper studied the spatial variability of four soil fertility factors including organic matter, available nitrogen, available phosphorus, and available potassium in waterlogged land.

In 1988,four clossed fish ponds (4-1,4-2,4-3,4-4) were selected to study the different types of main cultivated fingerlings in fish ponds in the saline-alkali wetland in Yucheng County of Shandong Province.