Technique of plant hedgerows is a favorable measure for utilization of slopelands and plays an important role in the sustainable development of eco-enviroment

resources and economy. Experiment s on the purple soil fer-tility of a plant hedgerows system were conducted on a slope cropland of 25 degree in the Three Gorges Reservoir area. Result s show that the plant hedgerow system is effective for soil fertility improvement . The root system of hedgerows is functioned as a“nut rient pump”to uptake soil nut rient s f rom deep soil and return them to topsoil by pruning of hedgerows

which promotes soil nut rient circulation and redist ribution. Runoff detention by hedgerows and mulching can effectively reduce soil nut rient loss by cont rolling soil loss and runoff.