{"id":{"repo_id":"sdstate","oai_identifier":"oai:openprairie.sdstate.edu:etd-1232"},"canonical_url":"https://search.dev.ndltd.org/etd/sdstate/oai:openprairie.sdstate.edu:etd-1232","repository":{"repo_id":"sdstate","name":"South Dakota State University","base_url":"https://openprairie.sdstate.edu/do/oai/"},"display":{"title":"Nutrient Transport in the Lake Poinsett System","abstract":"Concentrations and loads of nutrients transported through the Lake Poinsett system were monitored from April 1, 1970 to April 1, 1971. An annual 2.07x 10~ m3 surface discharge into Lake Poinsett transported 1.66 x 104 kg (PO4) phosphorus, 1.28 x 104 kg nitrate nitrogen, and 3.90 x 104 kg organic carbon. The Big Sioux River-Dry Lake system contributed 63% of the phosphorus, 45% of the nitrate nitrogen, and 43% of the organic carbon load. The remaining portion entered Lake Poinsett from the Lake Albert drainage. Of the annual load of nutrients transported into Lake Poinsett, 33% of the nitrate nitrogen load, 40% of the organic card load, and 70% of the phosphorus load was retained by the lake or lost by ways other than water discharge. Average annual phosphorus concentrations decreased through the system from 1.9 mg/l (PO4) in the Big Sioux River of 0.22 mg/l (PO4) in Lake Poinsett. Soluble inorganic phosphorus constituted 71% of the total phosphorus which entered Lake Poinsett and comprised 50% of the phosphorus in the lake. The average annual concentration of nitrate nitrogen in Lake Poinsett was 0.52 mg/l. Average annual organic carbon concentrations increased through the system from 12.27 mg/l in the Big Sioux River to 18.40 mg/l in Lake Poinsett. Nutrient concentrations in Lake Poinsett, relative to the needs of aquatic plants in the lake, are in a state of super-saturation. The advanced degree of eutrophication in Lake Poinsett is ascribable to the large annual nutrient load entering and retained by the lake.","abstract_html":"Concentrations and loads of nutrients transported through the Lake Poinsett system were monitored from April 1, 1970 to April 1, 1971. An annual 2.07x 10~ m3 surface discharge into Lake Poinsett transported 1.66 x 104 kg (PO4) phosphorus, 1.28 x 104 kg nitrate nitrogen, and 3.90 x 104 kg organic carbon. The Big Sioux River-Dry Lake system contributed 63% of the phosphorus, 45% of the nitrate nitrogen, and 43% of the organic carbon load. The remaining portion entered Lake Poinsett from the Lake Albert drainage. Of the annual load of nutrients transported into Lake Poinsett, 33% of the nitrate nitrogen load, 40% of the organic card load, and 70% of the phosphorus load was retained by the lake or lost by ways other than water discharge. Average annual phosphorus concentrations decreased through the system from 1.9 mg/l (PO4) in the Big Sioux River of 0.22 mg/l (PO4) in Lake Poinsett. Soluble inorganic phosphorus constituted 71% of the total phosphorus which entered Lake Poinsett and comprised 50% of the phosphorus in the lake. The average annual concentration of nitrate nitrogen in Lake Poinsett was 0.52 mg/l. Average annual organic carbon concentrations increased through the system from 12.27 mg/l in the Big Sioux River to 18.40 mg/l in Lake Poinsett. Nutrient concentrations in Lake Poinsett, relative to the needs of aquatic plants in the lake, are in a state of super-saturation. The advanced degree of eutrophication in Lake Poinsett is ascribable to the large annual nutrient load entering and retained by the lake.","abstract_has_math":false,"creators":["Skille, Jack M."],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis - Open Access","degree_discipline":"Wildlife Management","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1971,"date_issued":"1971-01-01T08:00:00Z","date_published":"1971-01-01T08:00:00Z","updated_at":"2026-07-24T04:27:44Z","subjects":["Natural Resources and Conservation"],"languages":["en"],"rights":["<p>No Copyright - Non-Commercial Use Only<br /><a href=\"http://rightsstatements.org/vocab/InC-EDU/1.0/\">http://rightsstatements.org/vocab/NoC-NC/1.0/</a></p>"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://openprairie.sdstate.edu/etd/232","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Skille, Jack M."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Wildlife Management"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - Open Access"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Natural Resources and Conservation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["<p>No Copyright - Non-Commercial Use Only<br /><a href=\"http://rightsstatements.org/vocab/InC-EDU/1.0/\">http://rightsstatements.org/vocab/NoC-NC/1.0/</a></p>"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://openprairie.sdstate.edu/etd/232"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Concentrations and loads of nutrients transported through the Lake Poinsett system were monitored from April 1, 1970 to April 1, 1971. An annual 2.07x 10~ m3 surface discharge into Lake Poinsett transported 1.66 x 104 kg (PO4) phosphorus, 1.28 x 104 kg nitrate nitrogen, and 3.90 x 104 kg organic carbon. The Big Sioux River-Dry Lake system contributed 63% of the phosphorus, 45% of the nitrate nitrogen, and 43% of the organic carbon load. The remaining portion entered Lake Poinsett from the Lake Albert drainage. Of the annual load of nutrients transported into Lake Poinsett, 33% of the nitrate nitrogen load, 40% of the organic card load, and 70% of the phosphorus load was retained by the lake or lost by ways other than water discharge. Average annual phosphorus concentrations decreased through the system from 1.9 mg/l (PO4) in the Big Sioux River of 0.22 mg/l (PO4) in Lake Poinsett. Soluble inorganic phosphorus constituted 71% of the total phosphorus which entered Lake Poinsett and comprised 50% of the phosphorus in the lake. The average annual concentration of nitrate nitrogen in Lake Poinsett was 0.52 mg/l. Average annual organic carbon concentrations increased through the system from 12.27 mg/l in the Big Sioux River to 18.40 mg/l in Lake Poinsett. Nutrient concentrations in Lake Poinsett, relative to the needs of aquatic plants in the lake, are in a state of super-saturation. The advanced degree of eutrophication in Lake Poinsett is ascribable to the large annual nutrient load entering and retained by the lake."]},{"key":"dc:title","label":"Title","values":["Nutrient Transport in the Lake Poinsett System"]}]}],"canonical_facts":{"dc:creator":["Skille, Jack M."],"dc:description.abstract":["Concentrations and loads of nutrients transported through the Lake Poinsett system were monitored from April 1, 1970 to April 1, 1971. An annual 2.07x 10~ m3 surface discharge into Lake Poinsett transported 1.66 x 104 kg (PO4) phosphorus, 1.28 x 104 kg nitrate nitrogen, and 3.90 x 104 kg organic carbon. The Big Sioux River-Dry Lake system contributed 63% of the phosphorus, 45% of the nitrate nitrogen, and 43% of the organic carbon load. The remaining portion entered Lake Poinsett from the Lake Albert drainage. Of the annual load of nutrients transported into Lake Poinsett, 33% of the nitrate nitrogen load, 40% of the organic card load, and 70% of the phosphorus load was retained by the lake or lost by ways other than water discharge. Average annual phosphorus concentrations decreased through the system from 1.9 mg/l (PO4) in the Big Sioux River of 0.22 mg/l (PO4) in Lake Poinsett. Soluble inorganic phosphorus constituted 71% of the total phosphorus which entered Lake Poinsett and comprised 50% of the phosphorus in the lake. The average annual concentration of nitrate nitrogen in Lake Poinsett was 0.52 mg/l. Average annual organic carbon concentrations increased through the system from 12.27 mg/l in the Big Sioux River to 18.40 mg/l in Lake Poinsett. Nutrient concentrations in Lake Poinsett, relative to the needs of aquatic plants in the lake, are in a state of super-saturation. The advanced degree of eutrophication in Lake Poinsett is ascribable to the large annual nutrient load entering and retained by the lake."],"dc:identifier":["https://openprairie.sdstate.edu/etd/232"],"dc:language":["en"],"dc:rights":["<p>No Copyright - Non-Commercial Use Only<br /><a href=\"http://rightsstatements.org/vocab/InC-EDU/1.0/\">http://rightsstatements.org/vocab/NoC-NC/1.0/</a></p>"],"dc:subject":["Natural Resources and Conservation"],"dc:title":["Nutrient Transport in the Lake Poinsett System"],"thesis:degree_discipline":["Wildlife Management"],"thesis:degree_level":["Thesis - Open Access"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T04:27:44Z"}