Thesis - Open Access
Master of Science (MS)
Available phosphorus, organic carbon, and organic nitrogen were measured in bottom sediments of 16 lakes and ponds in northeast South Dakota. These lakes were glaciated, relatively shallow, and productive. Ranges of the surface sediments were: available phosphorus, 2 to 42 ppm; organic carbon, 0.94 to 5.34 percent; and organic nitrogen, 0.29 to 0.79 percent. Ranges of subsurface sediments were: available phosphorus, 2 to 39 ppm; organic carbon, 0.54 to 6.06 percent; organic nitrogen, 0.19 to 0.88 percent. Concentrations in most lakes varied little from top to bottom. Hard-bottomed lakes generally decreased in nutrient concentrations from sediment surface of subsurface. Lower concentrations of carbon and nitrogen appeared to indicate higher rates of deposition of material from the watershed. Sediments from lakes in northeast South Dakota appeared to have lower concentrations of organic carbon and organic nitrogen than sediments from lakes studied in Wisconsin. Levels of organic carbon and organic nitrogen appeared to be related, although this relationship was not reflected by carbon: nitrogen ratios.
Library of Congress Subject Headings
Lakes -- South Dakota
Includes bibliographical references (pages 29-30)
Number of Pages
South Dakota State University
Swanson, Alan Ross, "Chemical Survey of Selected South Dakota Lake Sediments" (1973). Theses and Dissertations. 245.