Soil respiration meter

Instrument Introduction

Soil respiration is an important process in the carbon cycle of soil ecosystems. It is the result of the balance of soil carbon assimilation and dissimilation. It is also the main way for carbon to return to the atmosphere from terrestrial ecosystems. It is a representation of life activities in soil. Accurately measuring its release is the 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. Soil CO2 flux is affected by a variety of complex physical and biological processes in time and space. Long-term, continuous and accurate measurement of soil carbon flux is of great significance to the study of carbon flux in terrestrial ecosystems. The soil respiration meter can simultaneously display the CO2 concentration, temperature and humidity changes inside the respiration chamber and the external photosynthetically active radiation intensity.

Soil respiration meters are widely used in agricultural ecological research, carbon source and carbon sink research, global climate change, changes in land use patterns, ecological restoration research, soil microbial activity assessment, plant ecology research, insect respiration, root respiration and fruit storage.

Technical indicators

CO2 analysis:

Dual-wavelength infrared carbon dioxide analyzer with temperature regulation, measuring range: 0-5000ppm, resolution: 0.1ppm; accuracy 3ppm. Carbon dioxide measurement is not affected by temperature changes, with stability, high accuracy, and sensitive response. Carbon dioxide difference acquisition can be completed within 1 second.

Temperature: German Heraeus high-precision digital temperature sensor, measuring range: -20-80℃, resolution: 0.1℃, error ±0.2℃

Humidity: Swiss imported high-precision digital humidity sensor, measuring range 0-85%, resolution: 0.1%, error ≤ 1%

Photosynthetically active radiation: Silicon photocell with correction filter, measuring range: 0-3000?molm ㎡/second, accuracy <1 molm ㎡/second.

Response wavelength range: 400~700nm

Flow measurement: glass rotor flowmeter, flow rate can be set arbitrarily in the range of 0-1.5L, error: 1%, in the range of 0.2~1L/min

Accuracy <±0.2%. Optional micro-electronic flowmeter, micro-electronic flowmeter, flow rate can be set arbitrarily in the range of 0-1L, resolution: 0.0001L.

Breathing chamber size: diameter 110mm, height 200mm, other sizes of breathing chambers can be customized.

Operating environment: temperature -20℃—60℃, relative humidity: 0-85% (no water vapor condensation)

Power supply: DC8.4V lithium battery, can work continuously for 10 hours.

Data storage: memory 16G, expandable to 32G.

Data transmission: USB connection to the computer can directly export data.

Display: 3.5" TFT true color LCD color display.

Resolution: 800×480, clearly visible under strong light.

Buttons: Six buttons, simple and convenient operation.

Volume: 260×260×130mm.

Weight: 3.25kg for main unit.

Optional: Soil moisture temperature sensor.

Product's Website：http://en.huoerd.com/trhxcdy/98.html