Hyytiälä SMEAR II Scots pine shoot and forest floor CO2 and water vapour exchange rates 20

2009-2019 measurements of CO2 and H2O exchange rates from Scots pine shoots and the forest floor at the Hyytiälä SMEAR II station in southern Finland. The dataset was created by Juho Aalto of the University of Helsinki and includes separate files for each year and measurement chamber. Methodology and data columns are documented in accompanying text files.

Use Cases

• Modeling net ecosystem exchange (NEE) based on shoot and soil chamber gas exchange rates.
• Analyzing seasonal and interannual variability in forest floor respiration based on soil chamber data.
• Studying Scots pine photosynthetic and transpiration responses based on shoot chamber measurements.
• Calibrating or validating ecosystem process models using long-term, site-specific flux data.

Strengths

• Provides an 11-year continuous record (2009-2019) of gas exchange measurements.
• Data is separated by chamber type (2-digit for soil, 3-digit for shoots), allowing for targeted analysis.
• Includes documentation files explaining the methodology and data columns.

Limitations

• Row count and file size are unknown, which may limit suitability assessment.
• Column-level documentation is absent from the provided metadata; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of Helsinki

Collection Method

Gas exchange measurements from shoot and soil chambers at the Hyytiälä SMEAR II station.

Time Range

2009-2019

Geography

Hyytiälä, southern Finland