NPP and Climate for Lowland Rainforests in Gunung Mulu, 1977-1978

Four Net Primary Productivity (NPP) and three climate data files document contrasting lowland rainforest ecosystems within Gunung Mulu National Park, Borneo, Malaysia. The NPP data includes estimates of above-ground biomass, annual litterfall, standing litter, and nutrient content for four distinct forest types along an elevation gradient from 50 to 300 meters. Climate records span from 1915 to 1990, providing long-term context for the primary productivity study conducted from June 1977 to September 1978.

Use Cases

• Comparing above-ground biomass and litterfall rates across alluvial, heath, mixed dipterocarp, and limestone forest types.
• Analyzing long-term climate trends (1915-1990) for a tropical rainforest region influenced by the Indo-Australian monsoon.
• Modeling carbon storage and nutrient cycling in primary lowland evergreen rainforests on varying soil substrates.
• Calibrating remote sensing or ecological models with ground-truthed NPP estimates from a well-defined environmental gradient.

Strengths

• Provides detailed, site-specific NPP measurements (e.g., litterfall ranging 886-1203 g/m2/year) for four distinct tropical forest ecosystems.
• Includes a long-term climate record (75 years from 1915-1990) for contextualizing the primary productivity study.
• Data collection is precisely documented, including study period (Jun 1977-Sep 1978), site elevations (50-300m), and forest plot sizes (~1.0 hectare).

Limitations

• Column names and exact data structure are unknown, which may complicate initial analysis.
• The dataset's last update date conflicts across sources (1990 vs. 2026), suggesting metadata may not reflect actual data currency.
• Spatial scale is limited to four specific 1-hectare plots within a single national park.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Scientific expedition and weather station observations.

Time Range

1915 to 1990 (climate data); primary study from June 1977 to September 1978 (NPP data).

Freshness

Last updated date conflicts: one source lists 1990-10-31, others list 2026-04-09.

Geography

Gunung Mulu National Park (544 km2), Borneo, Malaysia.