Luquillo Tropical Forest Net Primary Productivity, 1946-1994

Net primary productivity measurements for nine montane tropical rainforest sites in Puerto Rico's Luquillo Experimental Forest. The dataset includes above-ground and below-ground NPP estimates derived from litterfall, biomass increment, and herbivory, along with climate data from a local weather station. Field measurements span nearly five decades, from 1946 to 1994.

Use Cases

• Analyzing the relationship between elevation, rainfall, and above-ground net primary productivity (ANPP) across different forest sites.
• Modeling total net primary productivity (TNPP) using site-specific estimates for litterfall, biomass increment, and herbivory.
• Correlating long-term climate station data with forest productivity metrics over a 48-year period.
• Comparing ANPP values across forest types, such as Dwarf cloud rainforest, Palm floodplain, and Bisley (tabonuco) forests.
• Studying below-ground NPP dynamics using measurements from the Guzman and Bisley sites.

Strengths

• Provides nearly five decades of continuous field measurements from 1946 to 1994.
• Covers nine distinct forest sites along an environmental gradient of elevation (100-1,000 m), soils, and rainfall.
• Includes specific ANPP values ranging from 370 to 1,950 g/m2/year and TNPP estimates for three sites.

Limitations

• Below-ground NPP was directly measured at only two of the nine sites.
• Column names and exact row counts are not specified in the available metadata.
• Sources conflict on the last updated date (1994 vs. 2026), suggesting potential metadata inconsistency.

Provenance

Source

ORNL_CLOUD

Collection Method

Field measurements of litterfall accumulation, biomass increment, and herbivory estimates.

Time Range

1946-1994

Freshness

2026-03-12 23:06:06.842016

Geography

Luquillo Experimental Forest (LEF), Puerto Rico