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<p>Stormwater ponds (SWPs) are one of the most common approaches for managing stormwater runoff, particularly in Florida. These engineered ecosystems are built and managed to reduce flooding and nutrient loading from the surrounding landscape to downstream aquatic ecosystems. However, the influence of the built environment surrounding SWPs on the export and transformation of macronutrients (i.e., C, N, and P) in SWPs is poorly understood. We sampled 19 SWPs in two planned residential communities in north-central and southwest Florida monthly from January to November 2024 to assess the quantity and quality of dissolved organic matter (DOM) as well as the concentrations of dissolved inorganic and organic nitrogen and phosphorus. We found that patterns of housing development (e.g., housing density and age) were better predictors of spatial variation in macronutrients between the two communities than biochemical variables (e.g., pH and specific conductance). Aged and denser homes surrounding ponds were associated with greater terrestrially derived humic-like DOM and higher nitrogen concentrations. In contrast to spatial variation among communities, we did not observe seasonal variations in DOM or nutrients between dry and wet seasons, potentially due to pond and/or landscape management. These results suggest that the built environment is more important than hydroclimatic influences in shaping water quality in SWPs. Further, altered macronutrients led to imbalanced stoichiometric ratios in SWPs, potentially mediating ecosystem functioning differently. Collectively, this study can inform future management by incorporating residential community dynamics to improve SWP functions and achieve their dual purposes as engineered units and aesthetic amenities.</p>

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Effects of the built environment on the quantity, quality, and ecological functions of dissolved organic matter and nutrients in the residential stormwater ponds (Florida, USA)

  • 期刊论文

  • 发表日期：

    2026年6月30日

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  • Shuo Chen,
  • Forrest W. Lefler,
  • H. Dail Laughinghouse IV,
  • Paul F. Monaghan,
  • Alexander J. Reisinger

摘要

Stormwater ponds (SWPs) are one of the most common approaches for managing stormwater runoff, particularly in Florida. These engineered ecosystems are built and managed to reduce flooding and nutrient loading from the surrounding landscape to downstream aquatic ecosystems. However, the influence of the built environment surrounding SWPs on the export and transformation of macronutrients (i.e., C, N, and P) in SWPs is poorly understood. We sampled 19 SWPs in two planned residential communities in north-central and southwest Florida monthly from January to November 2024 to assess the quantity and quality of dissolved organic matter (DOM) as well as the concentrations of dissolved inorganic and organic nitrogen and phosphorus. We found that patterns of housing development (e.g., housing density and age) were better predictors of spatial variation in macronutrients between the two communities than biochemical variables (e.g., pH and specific conductance). Aged and denser homes surrounding ponds were associated with greater terrestrially derived humic-like DOM and higher nitrogen concentrations. In contrast to spatial variation among communities, we did not observe seasonal variations in DOM or nutrients between dry and wet seasons, potentially due to pond and/or landscape management. These results suggest that the built environment is more important than hydroclimatic influences in shaping water quality in SWPs. Further, altered macronutrients led to imbalanced stoichiometric ratios in SWPs, potentially mediating ecosystem functioning differently. Collectively, this study can inform future management by incorporating residential community dynamics to improve SWP functions and achieve their dual purposes as engineered units and aesthetic amenities.