Urban Lawn Litter Decomposition Rates for 8 Tree and Shrub Species

A study by Tom Künnemann assessed litter decomposition dynamics in urban green spaces. Decomposition rates for eight tree and shrub litters were measured using litterbags in adjacent open and wooded lawns, with microclimate and soil properties monitored. The dataset, last updated in April 2026, indicates litter quality is a stronger driver of decomposition than the microclimatic effect of trees.

Use Cases

• Comparing decomposition rates (k values) between open and wooded lawns based on the litterbag experiment described.
• Modeling the influence of litter lignin and soluble compound content on decomposition based on the reported R² values.
• Assessing the contribution of macrofauna to labile litter decomposition based on the mesh size exclusion method mentioned.
• Evaluating the relative impact of microclimate (temperature, moisture) versus soil properties on decomposition dynamics as described in the study.

Strengths

• Includes decomposition rate constants (k) for eight specific tree and shrub species, with values ranging from 0.29 to 6.23 y⁻¹.
• Reports specific quantitative findings, such as a 1.6°C average temperature difference between lawn types and decomposition rate increases of 87% and 54% for two oak species in wooded lawns.
• Provides R² values (0.59–0.92) for the relationship between decomposition rates and litter quality metrics like lignin content.

Limitations

• Row count and column-level documentation are absent; field semantics must be inferred after download.
• The dataset is very small (131.2 KB), indicating limited scope, likely containing summary results rather than raw observational data.
• Geographic location of the study is not specified in the provided metadata.

Provenance

Source

figshare, authored by Tom Künnemann.

Collection Method

Experimental data from a litterbag study measuring decomposition rates in urban lawns.

Freshness

Last updated 2026-04-30 05:39:05; freshness should be verified.