Evidence details
07 Oct 2020
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Study
- Citation
- Hatt, B., Fletcher, T. D., & Walsh, C. J. (2004). The influence of urban density and drainage infrastructure on the concentrations and loads of pollutants in small streams. Environmental Management.
- Study description
- Spatial survey of water quality parameters in15 urban catchments that vary in urban density and proximity to stormwater drains.
Response
- Cause term/trajectory
-
Land use/land cover - urban
(Increase)
- Cause description
- Urban density, estimated by % imperviousness.
- Effect term/trajectory
-
Water quality - nutrients (phosphorus)
(Increase)
- Effect description
- Total phosphorus, event flows
- Response measure type
- Pearson correlation coefficient
- Response measure value
- 0.47
- Statistical significance
- <0.05
- Documentation
- Figure 3
Design
- Source data
- Field
- Study type
- Observation
- Study design
- Spatial gradient
- Number of independent control or reference sampling units
- 15
- Number of indendent impact or treatment sampling units
- not applicable (gradient)
- Sample size used in analysis
- 15
Context
- Climate
- Temperate
- Country
- Australia
- Habitat
- Stream/river
- Spatial extent
- Regional
- Temporal extent
- Years
- Context description
- urban stream and catchment