Device for measuring soil water movement and soil structure and method

Abstract

The invention discloses a device for measuring soil water movement and a soil structure. A water supply part comprises a water supply tank, a plug, a valve and a Mahalanobis bottle. The water tank is communicated with the Mahalanobis bottle through a pipeline. The top of the Mahalanobis bottle is provided with a first through hole. The plug is arranged at the position of the first through hole. The valve is arranged at the lower part of the Mahalanobis bottle. A testing soil column comprises an upper cover and a body. The top part of the upper cover is provided with a second through hole. Thesecond through hole is connected with the valve through a pipeline. A glass screen is arranged inside the body. The lower part of the glass screen is provided with filter paper. The lower part of thebody is provided with a water outlet. The side wall of the body is provided with a third through hole. A soil moisture sensor is arranged at the position of the third through hole. The soil moisture sensor is connected to an acquisition device through a lead wire. A data acquisition part comprises the acquisition device, an X-ray machine and a computer. Output ends of the acquisition device and the X-ray machine are connected to an input port of the computer. The invention also discloses a method for measuring the soil water movement and the soil structure.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a device and method for measuring soil water movement and soil structure. Background technique [0002] As a heterogeneous complex system, soil consists of solid, liquid and gas phases. Among them, the solid phase constitutes the skeleton of the soil, and its structure is usually expressed by the size, shape and spatial arrangement of solid particles. The particles and pores that make up soil come in different sizes and shapes, and they are linked together in a variety of ways. Research results show that soil is a complex system with self-similar characteristics, that is, soil has obvious fractal characteristics. It is extremely important to quantitatively describe the complexity of abnormal soil structure properties and the relationship between soil water movement and soil structure, because the water movement in soil is largely determined by the arrangement and connectivity of soil...

AI Technical Summary

Problems solved by technology

This method cannot realize the implementation monitoring of the whole process, and the process of the whole experiment also limits the accuracy of the measurement

[0004] Existing devices for measuring soil moisture movement and soil structure, when measuring soil structure, use digital camera photography technology to take pictures of soil samples after the test, which not only destroys the original structure of soil, but also suffers from the impact of shooting accuracy and shooting personnel. The influence of subjectivity

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