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Intact soil core collection device for determining soil volume weight of marsh wetland and application method of intact soil core collection device

A soil bulk density and collection device technology, which is applied to sampling devices and other directions to achieve the effects of simple operation, low cost and solving compaction problems

Inactive Publication Date: 2018-03-30
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is an urgent need for a swamp wetland undisturbed soil core sampling device to avoid the problem of soil compaction in the sampling process, so as to meet the needs of accurate determination of swamp wetland soil bulk density and microscopic mechanism research of soil nutrient cycle.

Method used

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  • Intact soil core collection device for determining soil volume weight of marsh wetland and application method of intact soil core collection device
  • Intact soil core collection device for determining soil volume weight of marsh wetland and application method of intact soil core collection device
  • Intact soil core collection device for determining soil volume weight of marsh wetland and application method of intact soil core collection device

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specific Embodiment approach 1

[0023] Specific implementation mode one: combine figure 1 and 2 Describe this embodiment mode, a kind of undisturbed soil core collection device for swamp wetland soil bulk density measurement of this embodiment mode, it comprises acrylic cylinder 1, cutting head 2, plunger 3 and rubber cap 9;

[0024] The cutting head 2 and the acrylic cylinder 1 are hollow cylinders with upper and lower openings; the inner diameter of the cutting head 2 is smaller than the inner diameter of the acrylic cylinder 1; the upper part of the cutting head 2 is inserted into the lower part of the acrylic cylinder 1; There is a through hole 3 9-1 in the middle of the rubber cap 9;

[0025] The plunger 3 is made up of a stainless steel handle 4, a wooden T-shaped handle 5 and a rubber piston 6; the middle of the wooden T-shaped handle 5 is provided with a through hole 5-1, and the middle of the rubber piston 6 is provided with a through hole 2 6 -1; both ends of the stainless steel handle 4 are prov...

specific Embodiment approach 2

[0027] Specific implementation mode two: combination figure 1 and 2 Describe this embodiment, the first difference between this embodiment and the specific embodiment is: the cutting head 2 is composed of an aluminum core 2-1 and a stainless steel razor 2-2, wherein the stainless steel razor 2-2 has two sides inside and outside. The inclined plane is sharpened and riveted to the inner side wall or the outer side wall of the aluminum core 2-1. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0028] Specific implementation mode three: combination figure 1 and 2 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is: the razor is 1.7 cm wide and 0.025 cm thick. Other compositions and connection methods are the same as those in Embodiment 1.

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Abstract

The invention provides an intact soil core collection device for determining soil volume weight of a marsh wetland and an application method of the intact soil core collection device and relates to the intact soil core collection device and the application method thereof, aiming at solving the problems of soil compaction in a current marsh wetland soil core collection process. The device providedby the invention comprises an acrylic cylinder, a cutting head part, a plunger piston and a rubber cap. According to the intact soil core collection device of the marsh wetland, provided by the invention, a rubber piston is combined with a sharp razor, so that plant root systems and organic residues, which are not completely decomposed, can be effectively cut in an inserting process. The transparent acrylic cylinder is visually inspected so that the position of the piston is effectively controlled through upward pulling a wooden T-shaped handle, and furthermore, a suction force is generated inthe acrylic cylinder. Finally, an undisturbed intact soil core of the marsh wetland is obtained and the compaction difficulty in an intact soil core collection process of the marsh wetland is completely solved; the device provided by the invention is simple to operate and low in cost and can be widely applied to sampling and research work of the intact soil core of the marsh wetland in China.

Description

technical field [0001] The invention relates to an undisturbed soil core collection device and a using method thereof. Background technique [0002] The dry soil weight per unit volume of undisturbed soil is the bulk density. Soil bulk density is one of the most basic and important indicators for the observation and research of marsh wetland soil. The soil bulk density of marsh wetland is closely related to soil permeability, organic matter content, soil fertility, and soil nutrient cycle. The high-precision swamp wetland soil sample collection device is an important guarantee for accurate determination of soil bulk density. However, compared with other types of soils such as forests and grasslands, marsh wetland soils are usually characterized by porosity and high organic matter content due to the influence of water. At the same time, the root system of swamp wetland often forms a unique grass root layer due to the interlaced coiling. In typical marsh wetlands such as t...

Claims

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Application Information

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IPC IPC(8): G01N1/08
Inventor 王国栋王铭姜明吕宪国
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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