Grassland Biomass and NPP Estimates from 31 Global Sites

1,477 monthly field measurements of grassland biomass components and climate data were compiled for 31 sites across five ecoregions worldwide. The dataset, produced by NASA, includes net primary productivity estimates calculated using six different algorithms to assess methodological bias. Measurements span from 1948 to 1994, with sites providing between 1 and 29 years of data.

Use Cases

• Comparing six different NPP estimation algorithms using site-specific biomass measurements like aboveground live material and standing dead.
• Analyzing the relationship between climate variables (rainfall, temperature) and biomass components across different grassland ecoregions.
• Modeling carbon sequestration and ecosystem productivity dynamics over time using the multi-year monthly time-series data.
• Studying belowground versus aboveground biomass allocation using data from the 17 sites that measured total belowground biomass.

Strengths

• Includes 1,477 field measurements, ensuring a substantial observational basis for analysis.
• Covers five distinct ecoregions (e.g., cold desert steppe, humid savanna), providing broad ecological representation.
• Provides NPP estimates from six different algorithms, allowing for direct methodological comparison and bias assessment.
• Contains long-term data for some sites, with a maximum record of 29 years.

Limitations

• Data completeness varies; not all 31 sites measured all biomass components (e.g., only 6 sites separated live and dead root components).
• Conflicting metadata exists: the last update date is listed as both 1994-12-15 and 2026-03-12, indicating a potential revision conflict.
• Specific column names and the exact row count for the CSV files are not provided by any source.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Compilation of peer-reviewed field measurements from published literature, with NPP calculated using standardized algorithms.

Time Range

1948-1994

Freshness

2026-03-12 23:08:56.986694

Geography

31 grassland study sites across major global grassland types.