Chemical characteristics of the lower Kissimmee River, Florida, with emphasis on nitrogen and phosphorus

Lamonds, A.G.

doi:10.3133/ofr75412

Cited by 4 publications

(3 citation statements)

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“…Drainage and development irreversibly altered the natural Everglades watershed and had severe environmental consequences. Early drainage lowered water tables up to 6 ft below predevelopment levels and resulted in conditions favorable for severe fires that damaged and eliminated vegetation (Alexander and Crook, 1973;1975). Peat burned and oxidized, and the land subsided as much as 6 ft below predevelopment levels.…”

Section: Drainage and Developmentmentioning

confidence: 99%

“…As a result, about 40,000 to 50,000 acres of flood plain marsh disappeared, resulting in a significant loss of habitat for wading birds and other aquatic animals (South Florida Water Management District, 1989) and in a loss of the natural nutrient-filtering effects of these wetlands. Drainage also eliminated the river's natural oxbows and stimulated agricultural development in flood plain and adjacent wetlands, all of which have contributed to the increased nutrient loading to Lake Okeechobee (Lamonds, 1975;Federico, 1982). The environmental impacts of channelization were quickly recognized, and calls for restoration of the river began even during canal construction.…”

Section: Drainage and Developmentmentioning

confidence: 99%

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The south Florida environment: A region under stress

McPherson¹,

Halley²

1996

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In 1991, the USGS began to implement a full-scale NAWQA Program. The three major objectives of the NAWQA Program are to provide a consistent description of current water-quality conditions for a large part of the Nation's water resources, to define long-term trends (or lack of trends) in water quality, and to identify, describe, and explain the major factors that affect observed water-quality conditions and trends. These objectives are being met (1) by conducting retrospective analyses of existing data, (2) by establishing a long-term nationwide monitoring network designed to assess existing water-quality conditions and provide a data base for trend analyses, and (3) by conducting process-oriented studies designed to provide a better understanding of the relation between land-and water-use activities and water-quality conditions. The NAWQA Program is providing an improved scientific basis for evaluating the effectiveness of water-quality management programs and practices.The NAWQA Program is being implemented through investigations of hydrologic systems in 60 study units that include parts of most major river basins and aquifer systems in the United States. Study units range in size from 1,200 to about 65,000 mi2 and incorporate 60 to 70 percent of the Nation's water use and population served by public water supply. The south Florida study unit includes most of the southern half of the Florida Peninsula and contains a major urban complex of more than 5 million people. The study unit in this report was included in the NAWQA Program in 1993.

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Section: Drainage and Developmentmentioning

confidence: 99%

Section: Drainage and Developmentmentioning

confidence: 99%

The south Florida environment: A region under stress

McPherson¹,

Halley²

1996

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“…The meandering river was considered having aerobic bottom conditions with a release rate of 4.2 mg (PO4-P) m-2 day-l . Studies in Canal C-38 showed that dissolved-oxygen concentrations near the bottom were often near zero (Lamonds, 1975) generating releases as great as 92 mg (PO4--P) m-* dayp1. As shown in Table 1, sediment release rates from 39 x 10-to 184 x lop7 mM(P) Q-lhr-l were determined.…”

Section: Pnmentioning

confidence: 99%

TRANSPORT CHARACTERISTICS OF PHOSPHORUS IN CHANNELIZED AND MEANDERING STREAMS¹

Rosendahl

Waite

1978

J American Water Resour Assoc

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Comparisons were made between rates of movement of orthophosphate in a canal and a meandering stream. The meander system had greater algal and macrophyte phosphate uptake rates, and lower plankton and sediment release rates compared to the canal. Chemical precipitation and direct rainfall influences on orthophosphate movement were insignificant relative to other terms. The major source of phosphorus to both systems was from upland runoff. The impact of this source was greater on the meandering system due to the smaller channel volume. When secondary effects of meandering were considered such as marsh inundation, the net orthophosphate movement within the meandering channel was less than that for the canal; due to the lower concentrations of phosphorus in marsh effluent waters. Field experiments were conducted to compare the longitudinal dispersion coefficient between a canal and meandering river system; the meandering stream had a dispersion coefficient over 17 times that measured for the canal. Rates of orthophosphate movement were combined into a single mass transport equation, and a numerical solution was obtained. Internal river and canal channel processes were overshadowed by external point source loadings. (KEY TERMS: nutrient modeling; water quality; meandering streams; channelization; orthophosphate; Kissimmee River Basin.)

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Chemical characteristics of the lower Kissimmee River, Florida, with emphasis on nitrogen and phosphorus

Cited by 4 publications

References 0 publications

The south Florida environment: A region under stress

The south Florida environment: A region under stress

TRANSPORT CHARACTERISTICS OF PHOSPHORUS IN CHANNELIZED AND MEANDERING STREAMS¹

Bibliography of U.S. Geological Survey reports on the water resources of Florida, 1886-1995

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Chemical characteristics of the lower Kissimmee River, Florida, with emphasis on nitrogen and phosphorus

Cited by 4 publications

References 0 publications

The south Florida environment: A region under stress

The south Florida environment: A region under stress

TRANSPORT CHARACTERISTICS OF PHOSPHORUS IN CHANNELIZED AND MEANDERING STREAMS1

Bibliography of U.S. Geological Survey reports on the water resources of Florida, 1886-1995

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TRANSPORT CHARACTERISTICS OF PHOSPHORUS IN CHANNELIZED AND MEANDERING STREAMS¹