Sampling method for large undisturbed soil, and sampling equipment thereof

Abstract

The invention relates to a sampling method for large undisturbed soil, and sampling equipment thereof, and belongs to the ecological research fields of soil science and environmental science. The sampling equipment for the large undisturbed soil comprises a soil sample fixing machine, a tool face separating base plate, a latch, a gradient support and a hydraumatic push-pull apparatus. Tracks in alower portion of the soil sample fixing machine are snapped with grooves on the tool face separating base plate. The latch is sleeved on outer side of the soil sample fixing machine and is connected with the gradient support. The hydraumatic push-pull apparatus is provided on the gradient support. One end of the hydraumatic push-pull apparatus hooks a sleeving hook of the tool face separating base plate, and the other end of the hydraumatic push-pull apparatus rests against a moving rod. Beckets are provided above four corners of the soil sample fixing machine. The sampling method is performed based on the sampling equipment for the large undisturbed soil. According to the method and the equipment provided by the present invention, soil disturbance is reduced, original layers of the soil are maintained through in situ sampling, such that authenticity of the sampling is ensured; the large undisturbed soil with different size can be sampled according to different requirements of scienceresearch; labor is saved due to adopting the hydraumatic push-pull apparatus.

Description

technical field [0001] The invention relates to a large-scale undisturbed soil sampling method and sampling equipment thereof, belonging to the fields of ecological research such as soil science and environmental science. Background technique [0002] Soil is the foundation of agricultural production. There are many differences in soil properties and fertility levels in different regions, different climatic conditions and different parent materials. At the same time, it is extremely difficult to conduct research on different soils in different regions. Therefore, disciplines such as agronomy, soil science and ecology The researchers moved the undisturbed soil with different parent material development in different regions to the same ecological environment to carry out scientific research. [0003] Soil sampling is an important means of research in disciplines such as agronomy, soil science, and ecology. The current collection of soil samples mostly adopts destructive e...

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Problems solved by technology

[0003] Soil sampling is an important means of research in disciplines such as agronomy, soil science, and ecology. The current collection of soil samples mostly adopts destructive excavation methods, which seriously destroys the original layer and structure of the soil and brings many difficulties to scientific research. , and the existing soil sampling equipment or less sampling can not meet the requirements of the undisturbed soil micro-plot test, or sampling by punching holes will inevitably cause compaction and soil structure damage, these methods and equipment are mainly for relatively The collection of small soil samples, but the sampling of large undisturbed soils with a volume of more than 1 cubic meter and a weight of more than 2 tons is difficult, and there is no corresponding equipment and technology at present

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