Overview

This knowledge graph synthesizes decades of research on carbon cycling in urban stormwater management ponds. As cities expand, these engineered water features have become significant—yet understudied—components of the urban carbon cycle.

The graph connects findings from over 45 peer-reviewed studies, revealing complex relationships between pond characteristics, management practices, and greenhouse gas dynamics. Key debates in the field—such as whether ponds are net carbon sources or sinks—are mapped alongside the evidence supporting different positions.

This resource is valuable for environmental engineers designing low-carbon stormwater infrastructure, researchers identifying knowledge gaps, and policymakers seeking evidence-based guidelines for urban water management.

What's in This Graph

• **688 knowledge nodes** representing concepts, findings, and relationships extracted from scientific literature
• **45+ source publications** from journals including Water Research, Science of the Total Environment, and Biogeochemistry
• **5 node types**: Factors (key variables), Inference Chains (reasoning pathways), Evidence References (citations), Reasoning Checkpoints (logical steps), and Associations (claimed relationships)
• **Carbon flux measurements** including CO₂, CH₄, and N₂O emissions from various pond zones
• **Spatial analysis** comparing forebay, open water, and littoral zone contributions
• **Temporal patterns** showing seasonal and diurnal variation in emissions

Questions You Can Explore

• Which pond zones act as carbon sources vs. sinks?
• How does ebullition affect methane emissions?
• What role does vegetation play in carbon sequestration?
• How do seasonal changes affect greenhouse gas fluxes?
• What are the knowledge gaps in stormwater carbon research?

Data Access

Download: JSON Data

Citation: Fylo. (2025). NSERC Stormwater Carbon Research Knowledge Graph. https://fylo.io/nserc

License: CC BY 4.0 - Free to use with attribution