Soil Respiration Responses to Nitrogen Addition in Cropland, Shrubland, and Forest

A three-year field experiment measured soil respiration rates under four nitrogen addition levels (0, 50, 150, and 300 kg N ha⁻¹ yr⁻¹) across three ecosystem types: cropland, shrubland, and forest. The dataset, created by Junjun Wu and last updated in April 2026, includes measurements of environmental variables, soil properties, and enzymatic activities to explore the mechanisms behind the ecosystem-specific responses.

Use Cases

• Modeling soil carbon flux under nitrogen fertilization based on measured respiration rates and treatment levels.
• Comparing ecosystem-specific sensitivity to nitrogen inputs based on data from cropland, shrubland, and forest sites.
• Investigating the relationship between soil enzyme activities (e.g., NAG, BG, PHO) and respiration responses described in the study.
• Analyzing the dose-response of soil respiration to low, medium, and high nitrogen addition treatments.

Strengths

• Includes data from a controlled three-year field experiment.
• Compares responses across three distinct ecosystem types: cropland, shrubland, and forest.
• Tests four specific nitrogen addition rates (0, 50, 150, 300 kg N ha⁻¹ yr⁻¹).
• Measures multiple explanatory variables, including soil properties and enzymatic activities.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is small (68.9 KB), indicating limited scope or number of observations.

Provenance

Source

figshare

Collection Method

Three-year field experiment with measured nitrogen addition treatments and soil respiration monitoring.

Time Range

Covers the duration of the three-year experiment; specific years are not stated.

Freshness

Last updated 2026-04-20 06:31:30; freshness should be verified.

Geography

The geographic location of the experimental sites is not specified in the provided metadata.