Amazon Forest Biophysical Measurements from Rainfall Exclusion Experiment

LBA-ECO LC-14 data reports forest biophysical measurements from a rainfall exclusion experiment at the km 67 Seca Floresta site in Brazil's Tapajos National Forest. The dataset contains monthly measurements from September 1998 through November 2006, designed to observe effects of severe water stress on a humid Amazonian forest. It includes six CSV files with data on stem inventory, tree diameter and height, growth increments, canopy density, leaf area index, and litter mass.

Use Cases

• Analyzing tree diameter growth increments from dendrometer data to quantify drought stress impacts on forest productivity.
• Modeling changes in leaf area index and canopy density to understand water stress effects on forest structure and light interception.
• Investigating relationships between rainfall exclusion and changes in coarse and fine litter mass for nutrient cycling studies.
• Using stem inventory and DBH measurements to assess forest biomass and carbon stock changes under experimental drought conditions.

Strengths

• Provides a long-term, monthly time series spanning over 8 years from 1998 to 2006.
• Captures multiple biophysical variables (DBH, height, LAI, litter mass) for a holistic view of forest response.
• Data originates from a controlled field experiment specifically designed to study Amazonian forest drought resilience.

Limitations

• Specific row counts and dataset size are not provided by any source.
• Conflicting last updated dates exist between platforms (2006-11-10 vs. 2026-03 13).
• Column names are not detailed, requiring inspection of the CSV files for precise variable identification.

Provenance

Source

ORNL_CLOUD / LBA-ECO project.

Collection Method

Monthly biophysical measurements from a field-based rainfall exclusion experiment.

Time Range

1998-09-28 to 2006-11-10

Freshness

2026-03-13 01:15:07.377100

Geography

km 67 Seca Floresta site, Tapajos National Forest, Brazil.