Part III The Cycle-transformation Theory of Ecological Economy System 2.The regression from economic matter-flow to natural matter-flow The regression from agricultural economic matter- flow to natural matter-flow The regression from industrial economic matter-flow to natural matter-flow The regression from productive and life consumption matter-flow to natural matter-flow The environment quality spoilage in the course of regression Part III The Cycle-transformation Theory of Ecological Economy System 2. The regression from economic matter-flow to natural matter-flow ⚫ The regression from agricultural economic matter￾flow to natural matter-flow ⚫ The regression from industrial economic matter-flow to natural matter-flow ⚫ The regression from productive and life consumption matter-flow to natural matter-flow ⚫ The environment quality spoilage in the course of regression