Defining Variability In Residential Landscape Soils That Influence Nutrient Runoff

Stormwater runoff is a significant concern in urban landscapes when soil water infiltration rates are low.  This condition occurs when pore size is limited in fine texture soils or through soil compaction.  Soil samples were collected from widespread, existing, newly constructed landscapes in Central Florida to examine the relationship between soil texture, bulk density, and infiltration rate.  Infiltration rates were determined on site at the time of sampling.  Samples were also collected to examine soil-moisture retention characteristics.  The relationship of compaction and texture on infiltration rates and soil-moisture retention will be discussed.