Amazon Litter Decomposition and Phosphorus Immobilization Study

LBA-ECO TG-07 data tracks litter decomposition in a lowland Amazonian rain forest on highly weathered soils. The 11-month study from 2000-2001 measured mass loss and nutrient dynamics across treatments with varying soil phosphorus availability. Approximately 50% of litter mass was lost over the study period, with significant phosphorus immobilization observed in fertilized plots.

Use Cases

• Analyzing the relationship between soil phosphorus availability and litter decomposition rates.
• Modeling carbon and nitrogen remaining as predictors of mass loss over time.
• Studying nutrient immobilization, particularly phosphorus, during the late stages of decomposition.
• Comparing decomposition dynamics between native and artificially fertilized soil treatments.
• Investigating nutrient retention mechanisms in low-nutrient ecosystems.

Strengths

• Data originates from a controlled, 11-month field experiment with specific temporal bounds.
• Treatments included native and artificially elevated phosphorus availability, allowing for comparison.
• Key metrics like mass remaining, carbon, nitrogen, and C:N ratios were tracked over time.
• Cross-platform presence on NASA EarthData and Data.gov signals its recognized importance.

Limitations

• Specific row counts, column names, and dataset size are not provided by any source.
• Sources conflict on the 'last updated' date (2001-02-21 vs 2026-03-13).
• The exact data collection methodology and file structure within the archives (ZIP, PDF, etc.) are not detailed.

Provenance

Source

ORNL_CLOUD

Collection Method

Field experiment using a common substrate to study litter decomposition under different soil phosphorus treatments.

Time Range

2000-2001

Freshness

2026-03 13 00:58:32.618353

Geography

Tapajos National Forest, Para, Brazil