Soil aggregate in-situ observation, collection and screening device

Abstract

The invention discloses a soil aggregate in-situ observation, collection and screening device. The in-situ observation, collection and screening device comprises an in-situ observation and collection device and a screening device. The in-situ observation and collection device comprises a box body, a top cover, an observation interlayer, a soil CT scanning probe in the observation interlayer and a soil quadrat collection mechanism. The screening device comprises an outer barrel, an inner barrel, a vibration device, a sleeve screen, a weighing sensor and a drying device, a through hole is formed in the side wall of the inner barrel, and the bottom of a circulation cavity between the outer barrel and the inner barrel communicates with a water supply pipeline and a drainage pipeline. High-pressure cleaning nozzles are arranged at the top of the inner barrel. According to the invention, in-situ observation can be carried out on soil aggregates, the real characteristics of the soil are obtained, the soil quadrat is directly collected after observation, the original real structure of the soil quadrat can be furthest maintained in the collection process, and subsequent observation in a laboratory stage is facilitated. The screening device can be used for dry screening and wet screening, the structure of a screening instrument is simplified, the screening efficiency and convenience are improved, and convenience is provided for soil characteristic analysis work.

Description

technical field [0001] The invention relates to the technical field of soil characteristic exploration, in particular to a device for in-situ observation, collection and screening of soil aggregates. Background technique [0002] Soil aggregates have a great influence on soil structure, nutrients and moisture, and plant growth, and it is of great scientific significance to ascertain their internal structural characteristics. [0003] The existing method of soil aggregate observation is usually to collect soil samples and observe them. The problem is that in the process of sampling and transferring samples, the soil is prone to deformation and even microstructure changes, and the real soil characteristics cannot be obtained. [0004] In addition, the commonly used grouping methods for soil aggregates are dry sieving method and wet sieving method. The two methods have different requirements. For example, dry sieving equipment needs to be equipped with a drying device or an air...

AI Technical Summary

Problems solved by technology

[0003]The existing soil aggregate observation method is usually to collect soil sample quadrats for observation, the problem is that in the process of sampling and transferring samples, the soil It is easy to produce deformation or even microstructural changes, and it is impossible to obtain real soil characteristics

In view of the above reasons, many instruments are required, the steps are cumbersome, and the analysis efficiency is low.

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