Surface soil sampler capable of controlling sampling quantity

Abstract

The invention discloses a surface oil sampler capable of controlling the sampling quantity. The surface soil sampler comprises a handle and a sampling head which are connected with each other, wherein the sampling head comprises a fixed plate and a movable plate which are folded mutually with an adjustable interval; the fixed plate is fixedly connected with the handle; one sides, close to the handle, between the fixed plate and the movable plate, are of a sealed structure, and the other parts of the fixed plate and the movable plate are open. The surface oil sampler is simple and convenient to operate, capable of horizontally sampling and vertically sampling, large in sampling quantity and capable of freely controlling the sampling quantity. When a manner of horizontally sampling is selected, the specified layered soil can be collected, and the sectional properties of the soil sample can be completely preserved; when a manner of vertically sampling is selected, the damage to the soil layer structure and the plant root system of the constructed soil is tiny; workers can select different sampling manners as required or according to specific environments.

Description

technical field [0001] The invention relates to a soil sampling device, in particular to a surface soil sampler with controllable sampling volume. Background technique [0002] The collection of soil samples is the prerequisite for the evaluation and analysis of soil nutrients and pollution levels in the field of agricultural resource utilization and environmental science, and is one of the important basic tasks for scientific and technological workers engaged in soil research. Accurate and appropriate collection of soil at different depths and selection of representative samples directly affect the accuracy and precision of test analysis, and are important prerequisites for whether the measurement results can faithfully reflect the soil environment. The small amount of single sampling will not only lead to low sampling efficiency, but also make it difficult to distinguish the characteristics of the soil profile. [0003] According to soil science, soil topsoil generally re...

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Problems solved by technology

Its disadvantages are: horizontal sampling is inconvenient, samples cannot be accurately stratified, and the profile characteristics of soil samples are difficult to distinguish; the amount of samples collected each time is small, and continuous collection is required. Collection of a small amount of samples; in addition, due to its high degree of specialization, relatively complex structure, many parts and components, it is inconvenient to use and maintain

Its disadvantages are: the workload of sample collection is relatively large; it is inconvenient to carry out vertical sampling, and the soil layer structure of the facility soil and the root system of plants with a relatively close distance in the planting soil are greatly damaged by the way of digging holes; soil stratification Depth and sampling volume cannot be accurately controlled

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