Reduced additions to river phosphorus for three years following implementation of a lawn fertilizer ordinance

Lehman, John T.; Bell, Douglas W.; Doubek, Jon P.; McDonald, Kahli E.

doi:10.1080/07438141.2011.629769

Cited by 13 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…speculate that highly educated residents are more aware of the environmental problems associated with lawn fertilizers and pet waste containing phosphorus, and that they may be more likely to use phosphorus-free labeled products and to dispose of pet wastes properly (Fissore et al, 2011;Lehman, Bell, Doubek, & McDonald, 2011). This effect also suggests that community education delivered across a wider spectrum of socioeconomic status could be very important in future phosphorus mitigation programs.…”

Section: Path Model: Total Phosphorus As Outcome Variablementioning

confidence: 94%

Watershed features and stream water quality: Gaining insight through path analysis in a Midwest urban landscape, U.S.A.

Stewart

Thompson

et al. 2015

Landscape and Urban Planning

View full text Add to dashboard Cite

Section: Path Model: Total Phosphorus As Outcome Variablementioning

confidence: 94%

Watershed features and stream water quality: Gaining insight through path analysis in a Midwest urban landscape, U.S.A.

Stewart

Thompson

et al. 2015

Landscape and Urban Planning

View full text Add to dashboard Cite

“…However, those authors also found that relative abundance of impervious surface in the watershed increased as a function of percentage of residents with a college education, and that relationship was presumably due to more well-educated residents preferentially living in areas with wider roads and larger homes. Although it is suspected that highly educated residents are more aware of the impacts of lawn fertilizer applications and improper household waste disposal on streams, the effect of socioeconomic factors such as education on pro-environmental behavior is likely to be complex (Fissore et al 2011;Lehman et al 2011). This complexity might be the underlying reason for the inability to detect strong relationships between home value, educational attainment, and stream invertebrate community variables in our study.…”

Section: Factors Influencing Stream Invertebrates In Altered Landscapmentioning

confidence: 99%

Direct and indirect effects of human population density and land use on physical features and invertebrates of Iowa (U.S.A.) streams

Olson¹,

Stewart

Thompson

2015

Urban Ecosyst

View full text Add to dashboard Cite

To improve understanding of human impacts on headwater stream condition, we quantified relationships between human, terrestrial landscape, and stream system variables in 29 central Iowa watersheds. Across study watersheds, between 0 and 100 % of total land area was characterized as Burban^(developed and barren land), whereas cultivated land constituted between 0 and 71 % of watershed area. Several variables were measured for each stream and associated watershed. Strengths of correlative relationships were used to select variables for path analysis, which we used to gain insight into factors affecting stream condition by evaluating direct and indirect effects of human system variables, terrestrial landscape variables, and physical stream variables on stream invertebrates. Results indicated that in predominantly urban watersheds, contaminant inputs to streams (measured by streamwater conductivity) negatively affected invertebrates, including EPT taxa (Ephemeroptera, Plecoptera, Trichoptera), and streamwater contaminant concentrations increased with impervious surface and human population density in the watershed. In rural watersheds, high streamwater nitrogen concentrations associated with cultivated land were related to declines in invertebrate taxon richness. Independent of land use, invertebrate abundance and taxonomic diversity were positively related to coarse substrate abundance on the streambed. Additionally, stream flow (discharge) increased with watershed area, which in turn increased invertebrate taxonomic diversity. Apparently, mechanisms responsible for human impacts on stream condition in central Iowa depend on dominant land use in the watershed. Additionally, stream ecosystems with high quality benthic habitat, and those located in large watersheds with greater flow, appear to be more resilient to land use effects.

show abstract

“…In the same way, we found ordinance timing plays a significant role in reducing nutrient loading to adjacent waterbodies. Not all ordinances have the same water quality impact, which likely explains the mixed conclusions of fertilizer ordinance impacts (Lehman et al 2009(Lehman et al , 2011Kirkpatrick et al 2014). For example, Krismky et al (2021) found fertilizer ordinances had no impact in Satellite Beach, Florida (Brevard County).…”

Section: Fertilizer Timingmentioning

confidence: 99%

“…Florida has been particularly active in adopting these regulations given its history with harmful algal blooms and red tide events that have challenged the local economy (Bechard 2020). However, ordinances have been documented to both impact (Lehman et al 2009(Lehman et al , 2011Qiu et al 2014;Vega and Ryan 2016;Motsch 2018) and not impact (Kirkpatrick et al 2014(Kirkpatrick et al , 2021 water quality in both inland and marine settings.…”

mentioning

confidence: 99%

Impacts of residential fertilizer ordinances on Florida lacustrine water quality

Smidt

Avilés

Belshe

et al. 2022

Limnol Oceanogr Letters

View full text Add to dashboard Cite

Despite the assumption that residential fertilizer ordinances improve regional water quality, their impacts across space and time largely remain unknown. Here, we analyze changes in water quality of lakes throughout the State of Florida from 1987 to 2018, comparing trends in water quality parameters before and after implementation of county‐wide fertilizer ordinances. We used a large dataset of publicly collected water quality data and linear mixed models to analyze ordinance impacts on total nitrogen, total phosphorus, chlorophyll a, and Secchi depth across 160 lakes throughout Florida. We further analyze water quality impacts relative to the type of ordinance (winter fertilizer ban, summer ban, nonseasonal ban, no ban). We found fertilizer ordinances favorably impacted lacustrine water quality, and winter (dry season) fertilizer bans had the greatest effect across all water quality metrics. Results of this study can be used to support the effectiveness of fertilizer ordinances across humid tropical and subtropical climate regions.

show abstract

Reduced additions to river phosphorus for three years following implementation of a lawn fertilizer ordinance

Cited by 13 publications

References 3 publications

Watershed features and stream water quality: Gaining insight through path analysis in a Midwest urban landscape, U.S.A.

Watershed features and stream water quality: Gaining insight through path analysis in a Midwest urban landscape, U.S.A.

Direct and indirect effects of human population density and land use on physical features and invertebrates of Iowa (U.S.A.) streams

Impacts of residential fertilizer ordinances on Florida lacustrine water quality

Contact Info

Product

Resources

About