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Effects of Suburban Land Use on Phosphorus Fractions and Speciation in the Upper Peruque Creek, Eastern Missouri
Author(s) -
Keller S.,
Zhang T. Q.,
Webb S.,
Brugam R.,
Johnson K.,
Lin Z.Q.
Publication year - 2008
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143007x221283
Subject(s) - phosphorus , environmental chemistry , environmental science , sediment , genetic algorithm , phosphate , hydrology (agriculture) , chemistry , ecology , geology , biology , paleontology , geotechnical engineering , organic chemistry
This field study was conducted to explore the spatial and seasonal changes in total phosphorus and fraction distribution in relation to land uses. Water samples were collected biweekly at four sampling locations, which represented different potential phosphorus sources along the Upper Peruque Creek in Eastern Missouri. Total phosphorus concentrations of >0.8 mg/L appeared sporadically at site 2, downstream of a small community, with an average of 0.82 ± 0.14 mg/L in fall. Particulate phosphorus accounted for approximately 80% of total phosphorus at all sampling sites, except for site 2, where approximately 50 to 75% of dissolved phosphorus was often observed. Approximately 71 and 85% of total phosphorus in the sediment was in the form of iron(III) phosphate at the headwaters and downstream sites, respectively; 29 and 15% was in the form of phytic acid at the two sites. Land uses affect the total phosphorus concentration and alternate phosphorus fraction and speciation in the creek.