CO₂ soil respiration

The CO₂ respiration from soil is a good indicator of overall biological activity of the soil, and is often used when studying the carbon cycle. The CO₂ flux can be measured on the soil surface in respiration chambers. Belowground CO₂ profile measurements can be made at variable depths in the soil.

GMP343 Carbon Dioxide Probe

Accurate and rugged probe-type instrument for ecological measurements. Diffusion based design - no sampling systems needed. A flow-through model is also available.

GMT220 Series Carbon Dioxide Transmitters

Designed for harsh and humid environments. Provides several alternatives for measurement range from ppm to percentage level. The housing is IP65 (NEMA 4) compliant.

HM70 Hand-Held Humidity and Temperature Meter

Rugged and reliable high-accuracy meter for demanding applications. Ideal for on-site checking and transmitter calibrations. Accredited calibration available.

In-soil Adapter for GMP220 Series Probes (PDF 165 KB)
Soil Adapter Kit for Horizontal Positioning of GMP343 (PDF 184 KB)
Soil Adapter Kit for Vertical Positioning of GMP343 (PDF 194 KB)
GMP343 in-soil measurements (PDF 76 KB)
GMP343 soil chamber measurements (PDF 80 KB)
GMP343 Equilibrium sampling in soil, snow and aquatic ecosystem (PDF 941 KB)

Surge in studies on Carbon Cycles of the Ecosystems of the World (PDF 96 KB)
Diffusion-Based Soil Respiration Measurements (PDF 82 KB)
Meeting the Challenge of Outdoor Carbon Dioxide Measurements (PDF 247 KB)
Free Air CO2 Enrichment experiment in Northern Japan (PDF 206 KB)
From the woods and into the air (PDF 193 KB)

Publications

Tang, J., L. Misson, A. Gershenson, W. Cheng, A. Goldstein, 2005. Continuous measurements of soil respiration with and without roots in a ponderosa pine plantation in the Sierra Nevada Mountains. Agricultural and Forest Meteorology, 132, 212-227.

Tang, J., D.D. Baldocchi, L. Xu, 2005. Tree photosynthesis modulates soil respiration on a diurnal time scale. Global Change Biology, 11, 1298-1304.

R.S. Jassal, T.A. Black, G.B. Drewitt, M.D. Novak, D. Gaumont-Guay, Q, Nesic., 2004. A model of the production and transport of CO₂ in soil: predicting soil CO₂ concentrations and CO₂ efflux from a forest floor. Agricultural and Forest Meteorology 124, 219-236

Tang J, Baldocchi D D., Qi Y, Xu L. 2003. Assessing soil CO₂ efflux using continuous measurements of CO₂ within the soil profile with small solid-state sensors.Agricultural and Forest Meteorology. 118, 207-220.

Articles in the web

Re-produced articles

Measuring CO₂ from our breathing soil, published in AWE International, June 2005

FLUXNET sites

Research

Societies and organizations

This page was printed from www.vaisala.com on May 12, 2008
URL: http://www.vaisala.com/instruments/applications/earth/co2soilrespiration

Applications

CO2 soil respiration