The Concept

A complete system for measurement of soil respiration in the field. Place the soil chamber directly on the soil surface, or attach it to a collar that has been buried in advance. Air is re-circulated through the chamber and through an NDIR CO2 analyzer by a battery powered DC Pump. CO2 accumulation is monitored in software, and simple data analysis tools are used to calculate the rate of soil CO2 efflux. The system is easily portable and assembles in minutes. The NDIR CO2 analyzer, pump, interface and software are components of our CO650 Plant CO2 Analysis Package and RP1LP Low Range Respiration Package, so it is easy and inexpensive to build several different packages from modular components.

SR1LP Package Components:

G103 DC Pump
G118 Soil Chamber
G180 Soil Chamber With Collars (OPTIONAL)
S151 Infrared CO2 Analyzer (0-2000 ppm) (Includes CO2 and H2O scrubbers)
S132 Temperature Sensor
G265 Mass Flow Controller and Monitor
A247 Battery Pack and Charger
C410 LabPro Interface
C901 Logger Pro Software
C404 Customized Setup Software
Instructor Manual
 

     

      Soil respiration data collected using the SR1LP

Optional Additions:

For a less expensive system to measure soil respiration, consider the SR1LP package which uses a rotameter flow meter instead of the Digital Flow Controller & Monitor.

Producing Area:Canada