Arctic Vegetation and Soil Plot Data from Alaskan Flux Towers

Five eddy covariance flux tower footprints along a 300 km latitudinal gradient on Alaska's North Slope provide the spatial framework for this 2014 dataset. ORNL_CLOUD collected detailed vegetation, environmental, and soil measurements from 1x1-meter quadrats placed within dominant habitat types. Specific attributes include species cover, active layer thaw depth, moss depth, soil moisture, and Leaf Area Index (LAI).

Use Cases

• Analyzing correlations between species cover data and soil moisture status or active layer thaw depth across the latitudinal gradient.
• Modeling vegetation community distribution (via species cover and LAI) relative to environmental factors like moss layer depth and standing water.
• Ground-truthing remote sensing data using plot-level spectral and vegetation height measurements within flux tower footprints.
• Investigating the impact of micro-habitat types (via subjectively placed quadrats) on soil properties such as organic horizon depth and pH.

Strengths

• Data covers a significant 300 km north-south transect across the Alaskan Arctic, capturing latitudinal variation.
• Measurements integrate multiple domains: vegetation species cover, soil properties (depth, moisture, pH), and environmental factors (LAI, height).
• Plots are co-located within five eddy covariance flux tower footprints, enabling direct linkage to ecosystem carbon flux studies.

Limitations

• Key structural details like row count, column names, and exact dataset size are unavailable from all sources.
• Sources conflict on the last updated date, with one listing 2014-07-31 and others listing 2026-03-13.
• Quadrat placement is described as subjective, which may introduce sampling bias for habitat representation.

Provenance

Source

ORNL_CLOUD

Collection Method

Data collected from subjectively placed 1x1-meter quadrats within habitat types in five flux tower footprints.

Time Range

2014

Freshness

2026-03-13 14:53:58.192728

Geography

North Slope of Alaska, along a gradient from Barrow to Atqasuk to Ivotuk.