Soil CO2, CH4 and N2O flux cooperative measuring device

A measuring device, CO2 technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., to reduce the intensity of field work, save space, and speed up the response speed

Active Publication Date: 2015-01-28
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS +1
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  • Abstract
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Problems solved by technology

And in regard to soil CO 2 In terms of flux observations, it is only for CO 2 flux assay

Method used

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  • Soil CO2, CH4 and N2O flux cooperative measuring device
  • Soil CO2, CH4 and N2O flux cooperative measuring device
  • Soil CO2, CH4 and N2O flux cooperative measuring device

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Embodiment Construction

[0033] Such as figure 1 As shown, soil CO 2 、CH 4 and N 2 O Flux cooperative determination device mainly comprises sampling system (19), control system (20) and analysis system (21), is provided with a plurality of air chambers (1) in sampling system (19), in control system (20) There is a main control board (15), and an air inlet electromagnetic valve (3) and an air outlet electromagnetic valve (5) connected to each air chamber (1), between the air chamber (1) and the air inlet electromagnetic valve ( 3) There is a control system filter (2) between them, and a synchronous pump (4) connected to the main air pipe connected to the air inlet solenoid valve (3) is provided on the main air pipe connected to the air outlet electromagnetic valve (5) , with CO in the analysis system (21) 2 / CH 4 analyzer(7) and N2 O analyzer (9), CO 2 / CH 4 analyzer(7) and N 2 O analyzer (9) in parallel, CO 2 / CH 4 Analyzer(7) with N 2 The O analyzer (9) is provided with an analysis system ...

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Abstract

The invention relates to a soil CO2, CH4 and N2O flux cooperative measuring device which mainly comprises a sampling system (19), a control system (20) and an analyzing system (21), and is characterized in that a plurality of gas chambers (1) are arranged in the sampling system (19), a main control board (15), a gas inlet electromagnetic valve (3) and a gas outlet electromagnetic valve (5) are arranged in the control system (20), and each gas chamber (1) is respectively connected with the gas inlet electromagnetic valve (3) and the gas outlet electromagnetic valve (5). The soil CO2, CH4 and N2O flux cooperative measuring device has the beneficial effects that data of soil CO2, CH4 and N2O fluxes can be simultaneously measured, and can be automatically observed and acquired in a measuring process, and thus the field work strength can be lightened.

Description

technical field [0001] The invention relates to the field of soil gas flux measurement devices and methods, in particular to a soil CO 2 、CH 4 and N 2 O flux co-determination device. Background technique [0002] The research methods of ecosystem carbon and nitrogen cycle process response to global change are mainly based on eddy covariance (EC) technology and box method ground flux observation, control experiment, model simulation, satellite remote sensing and other technical methods. However, among many methods, the EC technology has less disturbance to the ecosystem. Through long-term observations, the response information of the ecosystem to global changes under natural conditions can be obtained, which is the biophysical control mechanism of carbon flux. , carbon source / sink potential and its dynamic changes are more direct methods. [0003] At the same time, the static box-gas chromatography method is an important method for observing soil greenhouse gases (CO 2 ,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N35/00
Inventor 于贵瑞温学发李晓波刘亚勇邢友武朱湘宁
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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