LBA-ECO ND-11: Forest Damage from Reduced Impact Logging in Brazil

2003 and 2004 data were collected in a logging concession at Fazenda Rohsamar in Juruena, northwestern Mato Grosso, Brazil. The dataset quantifies damage from reduced-impact logging operations, including measurements from 54 individual tree-felling gaps and stratified transects across two logging blocks. It records characteristics of harvested trees and surrounding damage to assess the environmental impact of forestry practices.

Use Cases

• Estimating biomass loss based on tree species, DBH, and height measurements.
• Assessing the spatial extent of logging damage from skid trails and road building using transect data.
• Comparing forest structure changes following reduced-impact logging based on canopy proportion and tree damage records.
• Modeling the area affected by different logging operations using gap and transect survey methodologies.

Strengths

• Contains detailed, ground-truthed measurements from 54 individual tree-felling gaps.
• Uses a stratified transect survey method with 26 transects in one block and 21 in another for systematic damage assessment.
• Provides coordinates for survey transect starting points, enabling geospatial analysis.

Limitations

• Metadata completeness is low: column names, row counts, and exact file sizes are unknown across all sources.
• Conflicting freshness information: one source lists a 2026 update date which is likely erroneous, while another cites 2005, suggesting the core data is historical.
• Documentation gaps exist, as specific data types and structures within the provided files (BIN, PDF, etc.) are not described.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Field surveys conducted post-logging, including gap surveys of felled trees and stratified transects to measure damage from roads and skid trails.

Time Range

2003-2004

Freshness

2005-07-06 23:59:59.999000

Geography

Fazenda Rohsamar, municipality of Juruena, northwestern Mato Grosso, Brazil