Pürgschachen Moor

raised bog

The upland bog in the Ennstal, a valley in the Austrian province of Styria, is located near the municipality of Ardning, 632 metres above sea level. With a size of 62 hectares, it is the largest, largely intact pine peat bog of Austria. Thus, it is a good example of the formerly widely distributed peat bogs of inner-alpine valleys.

The typical plant communities of the Pürgschachen Moor are Sphagnum magellanicum, Pinus mugo and Calluna vulgaris.

Eddy Covariance System

The Eddy Covariance method is one of the most accurate, direct and defensible approaches available to date for measurements of gas fluxes and monitoring of gas emissions from areas with sizes ranging from a few hundred to millions of square meters. Furthermore it allows measurements of fluxes of sensible heat, latent heat and momentum, integrated over an area.

LI-COR Biosciences | Brief Guide To Eddy Covariance Measurements

Instrumentation:

  • LI-7200RS Enclosed CO2/H2O Analyzer
  • Gill® Windmaster Pro
  • LI-7700 Open Path CH4 Analyzer
  • Standard Biomet Package
    • Vaisala HMP155 Humidity and Temperature Probe with RM Young Radiation Shield
    • Texas Electronics TR-525M Tipping Bucket Rain Gauge
    • LI-190R Quantum Sensor
    • Stevens Hydra Probe II Soil Probes (3)
    • Kipp & Zonen CNR4 Net Radiometer
    • HukseFlux HFP01 Soil Heat Flux Plates (3)

Automatic soil greenhouse gas chambers

12 transparent chambers (50x50x30 cm) are designed for long-term net carbon exchange measurements on different plant communities. They are distributed over three main plant types of the raised bog (Sphagnum magellanicum, Pinus mugo, Calluna vulgaris) such that each type dominated plot is measured with 4 replicates. The chambers, equipped with two ventilators each are connected in turn for 5 minutes to a LI-840A CO2 gas analyzer .