Single Chamber Long-Term
In addition to spatial heterogeneity, soils also exhibit both diurnal and seasonal patterns of variation in CO2 evolution due to changes in soil water content, temperature, soil organic carbon resources, etc. In order to capture these long term patterns, measurements must be made continuously for days, weeks, even months at a time. The LI-8100A and Long-Term Chambers were designed to be deployed, unattended, for these extended periods of time.
Both chambers are automated to move away from the measurement collar when not taking a measurement, minimizing perturbations to the natural microclimate at the measurement site. Soil temperature and moisture sensors are optional - readings from these auxiliary sensors are integrated into the dataset. The Analyzer Control Unit's weatherproof box is designed for long-term field deployment. DC power, provided by the user, is wired into a weather-tight box on the side of the ACU. The user can configure the system with a PC or the optional Wireless Communications Package. Data is stored on a removable Compact Flash card (included).
A Single Chamber Long-Term configuration includes...
- LI-8100A Analyzer Control Unit (ACU)
- Auxiliary sensor interface
- Compact Flash Card
- PC software for interfacing instrument and data analysis
- Choice of Long-Term Chambers:
- 8100-104
- 8100-104C Clear Chamber
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If you do not receive it within 24 hours or if you have any questions, please contact LI-COR at 1-402-467-3576.