1、 Instrument Overview

Soil respiration is an important process in the carbon cycle of soil ecosystems, resulting from the balance of soil carbon assimilation and assimilation. It is also the main pathway for carbon to return to the atmosphere from terrestrial ecosystems and a representation of life activities in soil. Accurately measuring its release is key to evaluating biological processes in ecosystems; By monitoring soil respiration and its related parameters, the response of roots and soil microorganisms to climate change can be estimated. The soil respiration meter can simultaneously display CO inside the breathing chamber₂、 H₂O、 Temperature and humidity changes. Widely used in agricultural ecological research, carbon source and sink research, global climate change, land use change, ecological restoration research, soil microbial activity assessment, plant ecology research, insect respiration, root respiration, and fruit storage.

2、 Instrument features:

1. Android operating system, more convenient human-computer interaction operation

2. 7-inch high-definition touch screen, easy to operate and clear interface;

3. The gas flow rate can be set by the instrument, and experiments on soil respiration intensity can be conducted at different flow rates;

4. Specialized dynamic analysis software that can display the experimental process in real-time on Android screens, eliminating the need to copy data to the computer and organize analysis;

5. Support WiFi and 4G networking; Data can be wirelessly uploaded to the cloud platform;

6. Storage space of 16GB, capable of storing over 100000 pieces of data;

7. Data can be directly exported to a USB drive through the USB interface;

8. After the detection is completed, the detection data results can be directly printed and uploaded;

9. Support GPS positioning;

3、 Technical indicators

CO₂Measurement range 0-5000ppm accuracy 1% VOL resolution 1ppm detection lower limit ≤ 1% VOL

H₂O (water vapor): measurement range 0- * * * RH accuracy 1% RH resolution 0.001 detection lower limit ≤ 1% RH

Atmospheric pressure: measurement range 300-1100 hPa resolution 1 hPa error 10 hPa

Respiratory chamber temperature: measurement range 0-50 ℃ resolution 0.001 error s ± 0.2 ℃

Respiratory intensity/carbon flux: unit: μ mol/m²·s. According to CO₂Automatic conversion of measurement data by instruments

Gas flow rate: standard 800ml/min adjustable

Breathing chamber size: 180mm (H) x100mm (D)

Respiratory chamber volume: 1413 cm³

Power supply: 12V DC lithium battery, with a full charge range of 8 hours

Breathing chamber size: 180mm (H) x100mm (D)

Respiratory chamber volume: 1413 cm³

Power supply: 12V DC lithium battery, with a full charge range of 8 hours

4、 Packing list

Number Name Quantity Unit

1 host, 1 unit

2 breathing rooms 1

3 chargers 1

1 set of 4 data cables (pipes)

5 manuals, 1 copy

6 USB drives, 1 unit

7 packing lists, 1 copy

8 certificates of conformity, 1 copy