Device for measuring different-depth water content of soil

Abstract

The invention discloses a device for measuring different-depth water content of soil. The device comprises a box body, a soil drilling cavity with a downward opening is formed in the box body, a drilling sampling device is arranged in the soil drilling cavity, three same soil stirring cavities in a communicating mode are arranged on the left side of the soil drilling cavity, measuring cavities arearranged on the right sides of the soil stirring cavities, a drying box is arranged on the right end wall of the measuring cavities, and three same weighting blocks are arranged between the left endwall and the right end wall of the drying box. According to the device for measuring the different-depth water content of the soil, the water content of the soil at different depths can be measured, during sampling, rolling wheels can be retracted into the box body so as to make the box body to be stably attached to the ground, the soil at different depths is taken out through drilling, the watercontent of the soil is calculated by calculating the mass reduced by water evaporation, the sampling and measuring are carried out in the same device, the measuring precision cannot be affected by water loss in the soil transportation process, and the measuring precision is improved.

Description

technical field [0001] The invention relates to the related field of measuring instruments, in particular to a device for measuring soil water content at different depths. Background technique [0002] Soil water content generally refers to the absolute water content of the soil. Determination of soil water content can grasp the water demand of crops, which has very important guiding significance for agricultural production. Generally, the drying weighing method is used to measure soil water content. The drying equipment needed for the dry weighing method is inconvenient to carry. During the measurement, the staff must transport the collected soil to the drying equipment for drying after sampling. During the transportation, the water in the soil will evaporate, which will make the measurement As a result, there are different degrees of error, and each measurement can only measure the soil at a certain depth. The device for measuring the water content of soil at different dep...

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Problems solved by technology

[0002] Soil water content generally refers to the absolute water content of the soil. Determination of soil water content can grasp the water demand of crops, which has very important guiding significance for agricultural production. Generally, the drying weighing method is used to measure soil water content. The drying equipment required by the dry weighing method is inconvenient to carry during measurement. During the measurement, the staff must transport the collected soil to the drying equipment for drying after sampling. During the transportation, the water in the soil will evaporate, which will make the measurement As a result, there are different degrees of error, and at the same time, only the soil at a certain depth can be measured during each measurement. A device for measuring the water content of soil at different depths set forth in the present invention can solve the above problems

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