Soil gas flux detector and determination method

A soil gas and measuring instrument technology, which is applied in the field of ecological automatic measuring devices, can solve the problems of large measurement error, exposed gas pipes and lines, and deviation of the position of the gas chamber, so as to be less prone to wear and tear, prolong service life, and seal good performance

Active Publication Date: 2013-08-07
北京萨维福特科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a soil gas flux measuring instrument to solve the problems of exposed gas pipes and lines, gas chamber position deviation, and large measurement errors of the soil gas flux measuring instrument

Method used

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  • Soil gas flux detector and determination method
  • Soil gas flux detector and determination method
  • Soil gas flux detector and determination method

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Experimental program
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Embodiment approach

[0062] When it is necessary to measure soil respiration in the field, the experimenter takes the soil gas flux meter and the measurement host to the field experiment site, and performs the following operations:

[0063] a) Pre-press the soil ring (1) into the soil 24 hours in advance to minimize the impact on soil respiration;

[0064] b) Install the soil gas flux measuring instrument, adjust the height of the legs (2), ensure that the soil ring (1) passes through the base (20), and the highest point of the soil ring (1) is 15mm below the top of the base (20)- 25mm;

[0065] c) Fix the leg (2), tighten the fastening screw (6) on the leg (2), so as not to cause the soil gas flux meter to slide during the measurement process;

[0066] d) Connect with the measuring host to ensure that the soil gas flux meter has sufficient power and the communication signal is normal;

[0067] e) Connect the inlet pipe and outlet pipe on the measuring host to the inlet pipe connector (19-2) and...

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Abstract

The invention relates to a soil gas flux detector comprising a soil ring (1), supporting legs (2), a pedestal (20), a gas chamber (7), a protective cover (8), a line passing shaft (9), and a control box (19). The flux detector is characterized in that a sealing ring (5) and a pressing ring (3) are arranged above the pedestal (20); the supporting legs (2) are arranged below the pedestal (20); supporting led slide grooves (16) and supporting leg rotation shafts (14) are arranged on the supporting legs (2); a buffering device (8-7) is arranged in the gas chamber (7), the protective cover (8), and the line passing shaft (9); and a return button (19-4) is arranged on the control box (19). With the device provided by the invention, problems such as exposed gas pipe and line, gas chamber offset, and large measuring error of soil gas flux detector can be solved.

Description

technical field [0001] The invention relates to the field of automatic measuring devices for ecology, in particular to a soil gas flux measuring instrument and a measurement method using the soil gas flux measuring instrument. Background technique [0002] Terrestrial soil respiration is the main way for gases to enter the atmosphere from the soil and is closely related to global climate change. Soil respiration has obvious seasonal and diurnal dynamics, and its seasonal dynamics are closely related to the characteristics of temperature changes. In addition, there are many factors that affect soil respiration. In addition to physical properties such as soil permeability and soil microbial characteristics, air temperature, soil temperature, Humidity, atmospheric CO2 concentration, content and composition of soil inorganic nutrients and organic matter will all affect soil respiration. [0003] The increasing content of greenhouse gases is one of the main reasons for the globa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 李晓波刘亚勇邢友武朱湘宁
Owner 北京萨维福特科技有限公司
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