Soil water automatic sampling and monitoring method

A soil water automatic sampling and monitoring method includes four steps: 1, embedding a sampling probe at a preset soil layer, wherein the embedding depth is 15-100cm, and the sampling probe is connected with a sampling bottle through a polyvinyl butral (pvb) tube; 2, controlling an intelligent vacuum pump to operate automatically through a time switch, and enabling the intelligent vacuum pump to automatically stop operating when the air pressure in the sampling bottle reaches 0.6 barometric pressure; 3, enabling the pressure of the sampling bottle to be maintained of 0.6 barometric pressure for 5-6 hours, enabling water in soil to permeate into the sampling probe, and further guiding the water into the sampling bottle through the pvb tube; and 4, enabling samples in the sampling bottle to automatically enter into a multifunctional water quality automatic detector after 6 hours, and enabling the multifunctional water quality automatic detector to automatically detect and record various water quality data. The soil water automatic sampling and monitoring method is simple in structure, easy and convenient to operate, and suitable for areas rich in soil water. A solar system is added, and the soil water automatic sampling and monitoring method can adapt to rural areas conveniently.