Layered soil structure in inverse circular-truncated-cone barrel bag and intelligent control system of water irrigation and drainage

The invention provides a layered soil structure in an inverse circular-truncated-cone barrel bag and an intelligent control system of water irrigation and drainage. The structure comprises the woven inverse circular-truncated-cone barrel bag, a bottom soil layer, a middle soil layer, a top soil layer, a humidity measuring sensor, a temperature measuring sensor, a water level sensor, a water inletpipeline with an electromagnetic valve, air convection holes and an air convection pipe; the bottom soil layer, the middle soil layer and the top soil layer are arranged in the inverse circular-truncated-cone barrel bag, the humidity measuring sensor and the temperature measuring sensor are inserted in the soil layers in the barrel bag, the water level sensor is fixed to the inner wall of a groove-body type bed with water tightness, the water inlet pipeline with the electromagnetic valve is welded to the side surface of the inner wall of the groove body, and the air convection pipe is welded to the inner wall of the o