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Apparatus and method for detecting capability of releasing/mounting COx by land ecosystem

An ecosystem and CO2 technology, applied in the field of devices for measuring the capacity of terrestrial ecosystems to fix/emit CO2

Inactive Publication Date: 2009-11-04
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Globally, there is still a lack of effective methods to measure CO fixation / emission by terrestrial ecosystems more accurately. 2 Ability

Method used

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  • Apparatus and method for detecting capability of releasing/mounting COx by land ecosystem

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Embodiment Construction

[0026] The present invention will be described below in conjunction with the accompanying drawings. However, it should be understood that the following specific embodiments are only used to illustrate the present invention rather than limit the present invention.

[0027] Fig. 1 is that the present invention measures terrestrial ecosystem to fix / emit CO 2 Schematic diagram of the structure of the capable device. Firstly, the plexiglass box is covered on the plant 31 to be measured, and the tee pipe 1, the air flow meter 2 (model EM1, measuring range 0-200L / min, product of SENSIRION company), the air pump 3 (purchased in the market) are connected with the rubber tube 20. , flow rate 0~200L / min) is connected with the air outlet 5 of the plexiglass box 4, and the other interface of the three-way pipe 1 is connected with the solenoid valve 6 (market purchase, general-purpose type), CO 2 Concentration analyzer 7 (LI840, LI6260, LI700 etc., precision reaches 1.5% or higher, U.S. g...

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Abstract

A device for measuring the ability of terrestrial ecosystems to fix / emit CO2, including: a transparent box, air supply and metering equipment, CO2 concentration measurement equipment, data acquisition and control system, wherein the data acquisition and control system collects and enters from the CO2 concentration measurement equipment and Discharge the CO2 concentration data of the transparent box and calculate the concentration difference, compare the concentration difference with the concentration difference set inside the system, and control the air flow supplied by the air supply and metering equipment to the transparent box according to the comparison result And collect the air flow data, calculate and store the capacity of the terrestrial ecosystem to fix / emit CO2 according to the collected air flow data and concentration difference, so as to realize the automatic dynamic continuous measurement of the ability of the terrestrial ecosystem to fix / emit CO2.

Description

technical field [0001] The present invention relates to the measurement of CO fixation / emission by terrestrial ecosystems 2 capacity and use of the device to measure CO sequestration / emission by terrestrial ecosystems 2 ability method. In particular, the invention relates to terrestrial ecosystems that fix / emit CO 2 A fully automatic dynamic continuous measurement device and measurement method for the ability to study different types of terrestrial ecosystems such as swamp wetlands, farmland, etc. to fix / emit atmospheric CO 2 The total amount, characteristics of temporal and spatial changes, influencing factors and mechanisms. Background technique [0002] CO 2 It is one of the important greenhouse gases in the atmosphere and plays a very important role in global warming. Atmospheric CO 2 The concentration has increased from 280ppmv before the industrial revolution to the current 367ppmv, so the control of atmospheric CO 2 Elevated concentrations have become a serious...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N35/00
Inventor 丁维新蔡祖聪
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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