LBA-ECO TG-08: Soil Gas Flux after Forest and Pasture Fertilization

Nitric oxide, nitrous oxide, and carbon dioxide flux measurements from a mature tropical forest and an 11-year-old pasture in the Brazilian Amazon reveal the impact of nitrogen and phosphorus fertilization. The dataset includes soil nitrogen and phosphorus pools, net mineralization and nitrification rates, and soil moisture measurements from 1998 and 1999. Its cross-platform presence on NASA and government portals signals its importance for studying greenhouse gas dynamics in land-use change.

Use Cases

• Modeling soil greenhouse gas emissions based on nitrogen and phosphorus fertilization treatments.
• Analyzing the relationship between soil moisture and nitrous oxide flux in tropical soils.
• Comparing net nitrogen mineralization rates between mature forest and established pasture ecosystems.
• Studying the impact of land-use change on soil nutrient pools in the Amazon basin.

Strengths

• Provides direct measurements of three key soil greenhouse gases (NO, N2O, CO2) from a well-defined field experiment.
• Includes paired data from two distinct land covers (mature forest and 11-year pasture) for comparative analysis.
• Supported by a major research organization, NASA, indicating rigorous collection standards.

Limitations

• Metadata completeness is low: column names and exact row counts are unknown across all sources.
• Conflicting freshness: one source lists a last update in 2026, while another indicates data collection ended in 1999.
• The dataset's scale is limited to a single site (Nova Vida, Rondonia) over two years.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Field measurements from soil fertilization treatments.

Time Range

1998-1999

Freshness

1999-03-10 23:59:59.999000

Geography

Nova Vida, Rondonia, Brazilian Amazon