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Soil respiration chamber

A technology of soil respiration and leaf chamber, applied in the field of soil respiration chamber

Active Publication Date: 2017-10-24
BEIJING PRI ECO TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The measurement chamber is the most widely used method for collecting and measuring the gas from the soil, but there are many problems in this measurement method

Method used

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  • Soil respiration chamber
  • Soil respiration chamber
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Examples

Experimental program
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Embodiment 1

[0043] This embodiment provides a soil breathing chamber, which includes a bottom case, a support plate, a support leg, a sealing box, a circuit board, a control case, a long shaft, a driven shaft and a leaf chamber cavity.

[0044] The bottom shell includes a left bottom plate and a right bottom plate. In this embodiment, both the left bottom plate and the right bottom plate are square, for example, the left bottom plate is a square, the right bottom plate is a rectangle, and the side length of the left bottom plate is less than The width of the right base plate; in this embodiment, the left base plate is connected to one end in the length direction of the right base plate.

[0045] The left end of the front side wall and the rear side wall of the left bottom plate is respectively equipped with a strut; An arc-shaped groove, the center of which is coincident with the axis of the hinged hole.

[0046] The upper end of the leg is hinged in the hinge hole through a hinge shaft,...

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PUM

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Abstract

The invention discloses a soil respiration chamber. The soil respiration chamber comprises a bottom case, supporting plates, supporting legs, a sealed box, a circuit board, a control case, a long shaft, a driven shaft, a travel switch and a blade chamber cavity. When the soil respiration chamber is in use, the bottom case is adjusted to be at an appropriate height relative to the ground, a motor is controlled to rotate so as to make the blade chamber cavity cover a through hole in a right bottom plate, the blade chamber cavity and the soil surface form an airtight space through a soil ring, one end of the soil ring is buried in earth by 2-5 cm, and the other end of the soil ring is closely combined with a U-shaped sealing ring. When gas released by soil is collected, the respiration chamber is closed, a control system with a pump extracts the gas into the control system from one end of a gas inlet of the respiration chamber, then the gas is delivered into a gas analyzer from the control system, the gas analyzer analyzes the gas and then delivers the gas back into a control box, and the gas is delivered back into the respiration chamber through the control box, so that a complete closed cycle of gas extraction, collection and analysis is formed. When the respiration chamber is not use, the motor is controlled to rotate backwards so as to separate the blade chamber cavity from the right bottom plate.

Description

technical field [0001] The invention relates to soil measuring equipment, in particular to a soil breathing chamber. Background technique [0002] In the context of global warming, the global carbon cycle has become one of the common concerns of earth sciences, biological sciences and social sciences (Chen Panqin, 2004). play a very important role in the change. Since soil respiration is the main way for soil carbon pools to enter atmospheric carbon pools (Schimel, 1995), relatively small changes in soil respiration rate will significantly change atmospheric CO 2 The concentration of soil carbon and the accumulation rate of soil carbon, thus exacerbating or slowing down global warming (Schlesinger&Andrews, 2000). Therefore, there is an urgent need for the scientific community to provide quantitative soil respiration measurement techniques and accurate data. The measurement chamber is the most widely used method for collecting and measuring the gas from the soil, but this ...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N33/00
CPCG01N33/0004G01N33/24
Inventor 张光辉温学发孙晓敏
Owner BEIJING PRI ECO TECH
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