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System and method for separating and measuring atmospheric CO2/H2O concentration vertical profile and CO2/H2O storage flux

A measurement system and concentration technology, applied in the fields of ecological monitoring and micro-meteorology, can solve the problems of high cost, long measurement cycle, frequent maintenance, etc.

Inactive Publication Date: 2019-04-19
NORTHEAST FORESTRY UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The object of the invention is to provide a kind of atmospheric CO 2 / H 2 Vertical profile of O concentration and CO 2 / H 2 O storage flux separation measurement system and measurement method to solve traditional atmospheric CO 2 / H 2 Vertical profile of O concentration and CO 2 / H 2 O The measurement of storage flux needs to be carried out independently through two sets of systems, and the traditional measurement method has high cost, long measurement cycle and frequent maintenance.

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  • System and method for separating and measuring atmospheric CO2/H2O concentration vertical profile and CO2/H2O storage flux
  • System and method for separating and measuring atmospheric CO2/H2O concentration vertical profile and CO2/H2O storage flux
  • System and method for separating and measuring atmospheric CO2/H2O concentration vertical profile and CO2/H2O storage flux

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specific Embodiment approach 1

[0031] Specific implementation mode 1, such as figure 1 , image 3 with Figure 5 Shown, a kind of atmospheric CO of the present invention 2 / H 2 Vertical profile of O concentration and CO 2 / H 2 O storage flux separation measurement system, including a surface acquisition unit 1, a measurement analysis unit 2 and a pumping unit 3;

[0032] The surface acquisition unit 1 communicates with the pumping unit 3, and a measurement and analysis unit 2 is connected in parallel between the surface acquisition unit 1 and the pumping unit 3. The inlet and outlet ports of the measurement and analysis unit 2 are respectively connected to the surface acquisition unit 1 and the The pumping unit 3 is connected, and the measurement and analysis unit 2 is used to measure CO in the atmosphere collected by the analysis surface acquisition unit 1. 2 / H 2 The concentration vertical profile of O and the instantaneous 3D volume-averaged CO required for the storage flux 2 / H 2 O concentratio...

specific Embodiment approach 2

[0046] Specific implementation mode 2, such as figure 2 As shown, the difference from Embodiment 1 is that the gas analyzer 4 in this embodiment is an infrared gas analyzer, and also includes a calibration system 15. The calibration system 15 is composed of multiple calibration pipelines, and the multiple calibration pipelines are finally Converge into a gas inlet pipeline and communicate with the infrared gas analyzer 4, and each calibration pipeline is equipped with a solenoid valve 16, and the solenoid valve 16 controls which calibration pipeline is used to deliver the calibration gas, and the calibration gas can be CO 2 or an ideal gas.

[0047] One based on an atmospheric CO 2 / H 2 Vertical profile of O concentration and CO 2 / H 2 The measurement method of O storage flux separation measurement system, comprises the following steps:

[0048] Step 1, collect the gas to be detected; by controlling the switching of each outlet valve of the four-way solenoid valve and th...

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Abstract

The invention discloses a system and method for separating and measuring an atmospheric CO2 / H2O concentration vertical profile and a CO2 / H2O storage flux, belongs to the technical field of micro-meteorology and ecological monitoring, and aims to solve the problems that the conventional atmospheric CO2 / H2O concentration vertical profile and the CO2 / H2O storage flux are confused in concept and measurement, the measurement period is long, the measurement cost is high, and frequent maintenance is needed. A surface type collecting unit is communicated with a pumping unit, a measuring and analyzingunit is connected with the pumping unit in parallel, and the measuring and analyzing unit is used for measuring and analyzing the concentration vertical profile and the storage flux of CO2 / H2O in theatmosphere collected by the surface type collecting unit and the pumping unit. According to the system and method for separating and measuring the atmospheric CO2 / H2O concentration vertical profile and the CO2 / H2O storage flux, the instantaneous three-dimensional space average CO2 / H2O concentration change can be measured to calculate the storage flux, atmospheric CO2 / H2O average concentration vertical profiles are measured at almost the same time, and the optimal measurement according with the storage flux and the vertical profile theory can be realized in engineering technology.

Description

technical field [0001] The present invention relates to an atmospheric CO 2 / H 2 O concentration profile and storage flux measurement system and measurement method, in particular to an atmospheric CO 2 / H 2 Vertical profile of O concentration and CO 2 / H 2 The invention discloses a storage flux separation measurement system and a measurement method, which belong to the technical fields of micro-meteorology and ecological monitoring. Background technique [0002] The carbon and water exchange between forests and the atmosphere is a hot issue in the fields of earth science, ecology, forestry, etc., among which eddy covariance (EC) is a micrometeorology method for studying carbon and water fluxes in terrestrial ecosystems. represent. CO 2 / H 2 O storage flux is an important part of the exchange of atmospheric carbon and water between the forest ecosystem and the EC method, and the atmospheric CO 2 / H 2 The vertical profile of O concentration is an important supplement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3518G01N21/3554G01N21/39
CPCG01N21/3518G01N21/3554G01N21/39
Inventor 王兴昌刘帆王传宽
Owner NORTHEAST FORESTRY UNIVERSITY
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