Data Sheet 1_Carbon sequestration capacity of roadside vegetation along a high-traffic exp

33,165 tons of annual carbon sequestration were measured for vegetation along a 158 km section of the G4 Expressway in Hubei Province. The dataset quantifies the capacity of 31 tree species, 18 shrub species, and four herbaceous combinations using field measurements of net photosynthetic rate and leaf area index. Authored by Chen Chen and last updated in 2026, it provides a basis for low-carbon expressway greening.

Use Cases

• Ranking plant species for carbon sequestration efficiency based on measured photosynthetic rates and leaf area indices.
• Modeling the carbon sink potential of multi-layered 'tree–shrub–herb' roadside configurations.
• Informing species selection for low-carbon expressway greening projects in temperate regions.
• Validating ecological models of carbon sequestration using field data from a high-traffic corridor.

Strengths

• Includes specific annual carbon sequestration totals (33,165 tons) and species-level contributions (trees 57%, shrubs 37%, herbs 6%).
• Provides quantified performance data for 53 distinct plant species and combinations, including high-efficiency examples like Pterocarya stenoptera (128.10 g m⁻²·d⁻¹).
• Employs two quantification methods (assimilation and biomass) and cluster analysis for species classification.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset's scope is limited to a single 158 km expressway section in central China.

Provenance

Source

figshare, authored by Chen Chen.

Collection Method

Field measurements of net photosynthetic rate and leaf area index, with carbon sequestration quantified using assimilation and biomass methods.

Freshness

Last updated 2026-05-29 06:17:05; freshness should be verified.

Geography

A 158 km section of the G4 Expressway in Hubei Province, central China.