Meadow alkaline soil was taken as research object in Songnen plain.Water-stable aggregates and carbon distribution in meadow alkaline soil were studied through long-term fertilization of manure. The recults indicated that the larger water-stable aggregate content(>1 mm) was decreased with planting years increasing by long-term fertilization of manure

but 0.25-0.5 mm water-stable aggregates was increased significantly.The soil organic carbon(SOC) contents were increased in various size with planting years increasing

SOC contents in size of 2-5 mm were highest

and SOC contents decreased with size decreasing.Using correlation analysis

0.25-0.5 mm water-stable aggregates were significantly related to SOC contents.Water-stable aggregates and SOC contents in meadow alkaline soil slightly increased after continuous 4-year planting.