Desert Grassland Productivity and Community Data from a 7-Year Nutrient Experiment

A 7-year nutrient-enrichment experiment in a desert grassland quantifies water availability and its effects on ecosystem properties. Data includes aboveground net primary productivity (ANPP), Hill–Chao diversity, functional group biomass, and community composition metrics. The dataset, shared under a CC-BY-4.0 license, was uploaded by Hui An in April 2026.

Use Cases

• Modeling the relationship between water availability and aboveground net primary productivity (ANPP) based on SPEI-derived metrics.
• Analyzing community reorganization and compositional shifts in response to long-term nutrient enrichment.
• Investigating the effects of temporal water availability scales (annual, growing season, stage-specific) on functional group biomass.
• Studying the mediation of nutrient effects on productivity through community reorganization as described in the experiment.

Strengths

• Data originates from a controlled 7-year field experiment, providing longitudinal insights.
• Includes multiple ecological metrics: ANPP, diversity indices, functional group biomass, and community composition.
• Water availability is quantified at three temporal scales (annual mean, growing season, and stages) using the SPEI index.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• The 146.9 KB file size indicates a relatively small dataset with limited scope.

Provenance

Source

figshare

Collection Method

Field experiment data collection.

Time Range

Covers a 7-year experimental period.

Freshness

Last updated 2026-04-20 06:57:59; freshness should be verified.

Geography

Desert grassland (specific location not provided).