Amazon Forest Canopy Damage and Recovery from Selective Logging

Eastern Amazon forests in Juruena, Mato Grosso, Brazil were studied to quantify canopy damage and recovery from selective logging. The dataset integrates field measurements of canopy gap fraction and ground damage with spectral mixture analysis of Landsat ETM+ satellite imagery across a 450-km² region. This first regional-scale study, created by ORNL_CLOUD, tracks post-harvest regrowth over 0.5 to 3.5 years, comparing reduced-impact and conventional logging practices.

Use Cases

• Comparing canopy damage between reduced-impact and conventional logging practices using canopy cover fraction estimates.
• Modeling post-harvest forest recovery over time using multitemporal sequences of 0.5-3.5 year regrowth.
• Assessing the spatial extent and impact of different logging infrastructure like log decks, roads, skids, and tree falls.
• Validating satellite-derived forest canopy cover fractions with field-based measurements of gap fraction.
• Analyzing regional landscape dynamics by integrating field data, satellite observations, and spectral mixture models.

Strengths

• Integrates field measurements with satellite imagery (Landsat ETM+) for validation across a 450-km² study area.
• Tracks canopy damage and recovery over a defined temporal sequence of 0.5 to 3.5 years post-harvest.
• Employs a spectral mixture model with Monte Carlo analysis to estimate subpixel cover of forest canopies, NPV, and soils.
• Provides comparative analysis of damage across specific landscape strata: log decks, roads, skids, tree falls, and intact forest.

Limitations

• Specific row count, file size, and detailed column names are not provided by any source.
• Conflicting last updated dates: one source lists 2002-11-15, while others list 2026 03-13, indicating potential metadata inconsistency.

Provenance

Source

ORNL_CLOUD

Collection Method

Combined field study of canopy gap fraction with spectral mixture analysis of Landsat ETM+ satellite imagery.

Time Range

2002 (study publication date), with field data covering post-harvest regrowth sequences of 0.5-3.5 years.

Freshness

2026-03-13 01:02:33.111905

Geography

Juruena, Mato Grosso, Brazil (eastern Amazon forest).