2007
DOI: 10.2134/jeq2006.0037
|View full text |Cite
|
Sign up to set email alerts
|

Relative Effects of Land Use and Near‐Stream Chemistry on Phosphorus in an Urban Stream

Abstract: Elevated levels of P in urban streams can pose significant water quality problems. Sources of P in urban streams, however, are difficult to identify. It is important to recognize both natural and anthropogenic sources of P. We investigated near-stream chemistry and land use factors on stream water P in the urbanizing Johnson Creek watershed in Portland, OR, USA. We sampled stream water and shallow groundwater soluble reactive P (SRP) and total P (TP) and estimated P flux at 13 sites along the main stem of John… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

2
13
0

Year Published

2009
2009
2013
2013

Publication Types

Select...
6
2

Relationship

0
8

Authors

Journals

citations
Cited by 21 publications
(15 citation statements)
references
References 22 publications
2
13
0
Order By: Relevance
“…The elevated SRP concentrations likely resulted from sewage inputs, as well as fewer wetlands and altered soils (Walsh et al, 2005). Sonoda & Yeakley (2007) demonstrated that soils adjacent to urban streams have lower capacities for retaining P than those in non-urban areas. We observed a highly significant correlation between SRP in stream water and distance from an urban center, as well significant trends for dissolved Mg, Ca, Si, DOC, and pH, but not dissolved NH 4 ?…”
Section: Streams In Contrasting Landscapesmentioning
confidence: 99%
“…The elevated SRP concentrations likely resulted from sewage inputs, as well as fewer wetlands and altered soils (Walsh et al, 2005). Sonoda & Yeakley (2007) demonstrated that soils adjacent to urban streams have lower capacities for retaining P than those in non-urban areas. We observed a highly significant correlation between SRP in stream water and distance from an urban center, as well significant trends for dissolved Mg, Ca, Si, DOC, and pH, but not dissolved NH 4 ?…”
Section: Streams In Contrasting Landscapesmentioning
confidence: 99%
“…This did not follow the patterns we expected to see for forest herbaceous plant-stream water relationships, but it supports the hypothesis that P is lost to streams when soils (and plants) are saturated (Sonoda and Yeakley 2007). Few studies have been able to make clear linkages for P with vegetation (Siccama et al 1970) and land use because soil chemistry (Clark et al 2000;Sonoda and Yeakley 2007), discharge (Banner et al 2009), groundwater, and seasonality (Sonoda and Yeakley 2007) may all interact.…”
Section: Meanmentioning
confidence: 63%
“…ter conditions (Sonoda et al 2007), which we did not measure, or a number of other system inputs. Precipitation fluctuations impacting stream flow and a potential threshold at which system response changes may also be factors influencing the trends we see (Banner et al 2009).…”
Section: Journal Of Soil and Water Conservationmentioning
confidence: 96%
See 1 more Smart Citation
“…Third, together with point source pollution, increases in storm runoff will deliver more urban and agricultural nonpoint source pollutants, such as thermal or nutrient pollution to water bodies, yet the concentration of constituents is likely to remain high during the low-flow season (Sonoda & Yeakley, 2007). As a result, highly developed watersheds tend to have more impaired water quality and thus have increased vulnerability whereas less developed watersheds may be more resilient.…”
Section: Introduction a Water Sustainabilitymentioning
confidence: 99%