Abstract: The investigation on different integrated management models in four experimental sites in the lower and middle reaches of Yangtze River shows that after integrated management, the plant coverage percentage is increased, soil erosion and soil bulk density are decreased, soil water content is increased, and the contents of organic matter and N, P and K are substantially improved.

Key words: River floodplain management, Agroforestry system, Soil fertility, Soil erosion, Low hills, The lower and middle reaches of Yangtze River, available nitrogen, biological soil crusts, simulated grazing, total nitrogen, microbial biomass nitrogen