20131125

Author : Donald Hagan, Francisco Escobedo, Gurpal Toor, Henry Mayer, Joy Klein and Cynnamon Dobbs
Year : 2010
Title : Soil Bulk Density and Organic Matter in Urban Miami-Dade County, Florida
Journal :This document is SL 327, one of a series of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida.
Comment :
In fact, most soil surveys do not even describe urban soils and delineate them as blank areas on regional soil maps. Recent studies have shown, however, that the physical, chemical, and biological properties of urban soils are quite variable, with conditions ranging from highly modified to relatively natural. In general, soil organic matter was highest in recreational and residential land uses and lowest in forested and agricultural land uses. Some areas in Miami-Dade with low bulk density (e.g. older residential areas with high tree cover and recreational areas like parks and golf courses) were also very high in organic matter.

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The concurrent decline of soil lead and children’s blood lead in New Orleans