China County Nitrogen Deposition Rates For Agricultural Modeling

Nitrogen deposition rates in milligrams per liter of precipitation are provided for Chinese counties. This dataset is one of seven compiled in the early 1990s as inputs for the DNDC biogeochemistry model. The collection was assembled by SCIOPS from multiple Chinese sources, with all data representing the county scale for the year 1990.

Use Cases

• Model county-level nitrogen input from precipitation for the DNDC (Denitrification-Decomposition) biogeochemistry model.
• Analyze spatial variation in atmospheric nitrogen deposition rates across Chinese agricultural regions.
• Correlate nitrogen deposition data with other county-level features like crop types, livestock, and soil properties from the broader collection.
• Establish a 1990 baseline for nitrogen deposition to assess historical changes in agricultural nutrient cycles.

Strengths

• Data is spatially explicit at the county level for all of China.
• Compiled from multiple authoritative Chinese sources for consistency.

Limitations

• Temporal coverage is limited to a single year (1990), making it stale for contemporary analysis.
• The dataset contains only one variable (nitrogen deposition rate), requiring joins with other collection datasets for broader analysis.

Provenance

Source

Multiple Chinese sources, compiled by SCIOPS.

Collection Method

Compiled from various Chinese data sources for use as model inputs.

Time Range

1990

Freshness

Static dataset from 1990, no updates.

Geography

China, at the county level.