Surface /subsurface hydrology and phosphorus transport in the Kissimmee River Basin, Florida

• Published in: Ecological engineering Vol. 5; no. 2; pp. 301 - 330
• Main Authors: Campbell, Kenneth L., Capece, John C., Tremwel, Terry K.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-11-1995
• Subjects: Flatwoods soils; Hydrologic modeling; Hydrology; Phosphorus; Runoff; Tracers; Hydrology; Phosphorus; Hydrologic modeling; Flatwoods soils; Runoff; Tracers
• ISSN: 0925-8574; 1872-6992
• DOI: 10.1016/0925-8574(95)00029-1

A comprehensive research program was conducted to enhance understanding of the hydrologic and phosphorus movement relationships of flat, sandy, high-water-table soils pervasive in the Kissimmee River Basin Region of Florida which drains into Lake Okeechobee. This region generates high phosphorus loads into the lake relative to other basins, causing environmental concerns. Field instrumentation and monitoring wells were installed at four experimental pasture sites in the Kissimmee River Basin to conduct research concerning water and phosphorus movement in flat, sandy, high-water-table soils. The focus was to obtain hydrologic /water quality data sufficient to determine surface /subsurface flow partitioning, and thus phosphorus flowpaths from the land phase to stream channels. A field-scale model was developed to simulate water and phosphorus movement from individual fields. This model, named FHANTM, is based on DRAINMOD with modifications to include simulation of phosphorus movement and routing of overland flow. The field monitoring data were used to calibrate and verify the modified model. This model was developed for use in predicting the effects on phosphorus movement to streams from application of management practices on the dairies.