[1]
|
United States Environmental Protection Agency, “Environmental indicators of water quality in the United States,” 1996, EPA 841-R-96-002.
|
[2]
|
R. Howarth and H. Paerl, “Coastal Marine Eutrophication: Control of both nitrogen and phosphorus is necessary,” Proceedings of the National Academy of Sciences of the United States of America, Vol. 105, No. 49, 2008, p. E103. doi:10.1073/pnas.0807266106
|
[3]
|
D. Schindler, R. Hecky, D. Findlay, M. Stainton, B. Parker, M. Patterson, K. Beaty, M. Lyng and S. Kasian, “Eutrophication of lakes cannot be controlled by reducing nitrogen inputs: Results of a 37-year whole-ecosystem experiment,” Proceedings of the National Academy of Sciences of the United States of America, Vol. 105, No. 32, 2008, pp. 11254-11258.
doi:10.1073/pnas.0805108105
|
[4]
|
W. Dodds, “Trophic state, eutrophication and nutrient criteria in streams,” Trends in Ecology & Evolution, Vol. 22, No. 12, 2007, pp. 669-676.
doi:10.1016/j.tree.2007.07.010
|
[5]
|
R. McDowell, A. Sharpley and A. Chalmers, “Land use and flow regime effects on phosphorus chemical dynamics in the fluvial sediment of the Winooski River, Vermont,” Ecological Engineering, Vol. 18, No. 4, 2002, pp. 477-487. doi:10.1016/S0925-8574(01)00108-2
|
[6]
|
R. Lottig and E. Stanley, “Benthic sediment influence on dissolved phosphorus concentrations in a headwater stream,” Biogeochemistry, Vol. 84, No. 3, 2007, pp. 297-309.
doi:10.1007/s10533-007-9116-0
|
[7]
|
B. Gainswin, W. House, B. Leadbeater, P. Armitage and J. Patten, “The effects of sediment size fraction and associated algal biofilm on the kinetics of phosphorus release,” Sciences of the Total Environment, Vol. 360, No. 1-3, 2006, pp. 142-157. doi:10.1016/j.scitotenv.2005.08.034
|
[8]
|
A. Mehlich, “Mehlich-3 soil test extractant: A modification of Mehlich 2 extractant,” Communications in Soil Science and Plant Analysis, Vol. 15, No. 12, 1984, pp. 1409-1416. doi:10.1080/00103628409367568
|
[9]
|
B. Haggard, D. Smith and K. Brye, “Variations in stream water and sediment phosphorus among select Ozark catchments,” Journal of Environmental Quality, Vol. 36, No. 6, 2007, pp. 1725-1734. doi:10.2134/jeq2006.0517
|
[10]
|
K. Brye and C. West, “Grassland management effects on soil surface properties in the Ozark Highlands,” Soil Scienc, Vol. 170, No. 1, 2005, pp. 63-73.
doi:10.1097/00010694-200501000-00008
|
[11]
|
G. Brion, K. Brye, B. Haggard, C. West and J. Brahanna, “Land-use effects on water quality of a first-order stream in the Ozark Highlands, Mid-Southern United States,” River Research and Applications. doi:10.1002/rra.1394
|
[12]
|
T. Sauer, P. Moore, J. Ham, W. Bland, J. Prueger and C. West, “Seasonal water balance of an Ozark hillslope,” Agricultural Water Management, Vol. 55, No. 1, 2002, pp. 71-82. doi:10.1016/S0378-3774(01)00185-8
|
[13]
|
A. Sharpley, S. Herron and T. Daniel, “Overcoming the challenges of phosphorus-based nutrient management in poultry farming,” Journal of Soil and Water Conservation, Vol. 62, No. 6, 2007, pp. 375-389.
|
[14]
|
N. Slaton, K. Brye, M. Daniels, T. Daniel, R. Norman and D. Miller, “Nutrient input and removal trends for agricultural soils in nine geographic regions in Arkansas,” Journal of Environmental Quality, Vol. 33, No. 5, 2004, pp. 1606-1615. doi:10.2134/jeq2004.1606
|
[15]
|
S. Ekka, B. Haggard, M. Matlock and I. Chaubey, “Dissolved phosphorus concentrations and sediment interactions in effluent-dominated Ozark streams,” Ecological Engineering, Vol. 26, No. 4, 2006, pp. 375-391.
doi:10.1016/j.ecoleng.2006.01.002
|
[16]
|
R. Maguire, G. Rubaek, B. Haggard and B. Foy, “Critical evaluation of mitigation of options for phosphorus from field to catchment,” Journal of Environmental Quality, Vol. 38, No. 5, 2009, pp. 1989-1997.
doi:10.2134/jeq2007.0659
|
[17]
|
Center for Advanced Spatial Technology (CAST), “Arkansas Land Use and Land Cover,” 2006.
http://www.geostor.arkansas.gov/G6/Home.html
|
[18]
|
Environmental Systems Research Institute, “ArcGIS 9.2,” Redlands, 2006.
|
[19]
|
Arkansas State Land Information Board (ASLIB), “2006 5-Meter Resolution Digital Elevation Model,” 2007,
http://www.geostor.arkansas.gov/G6/Home.html
|
[20]
|
American Public Health Association (APHA), “Standard Methods for the Examination of Water and Wastewater,” 20th Edition, Washington, DC, 1998.
|
[21]
|
M. Hosomi and R. Sudo, “Simultaneous determination of total nitrogen and total phosphorus in freshwater samples using persulphate digestion,” International Journal of Environmental Studies, Vol. 27, No. 3-4, 1986, pp. 267-275. doi:10.1080/00207238608710296
|
[22]
|
D. Lamber and W. Maher, “An evaluation of the efficiency of the alkaline persulfate digestion for the determination of total phosphorus in turbid waters,” Water Research, Vol. 1, No. 1, 1995, pp. 7-9.
doi:10.1016/0043-1354(94)00141-S
|
[23]
|
M. Arshad, B. Lowery and B. Grossman, “Physical Tests for Monitoring Soil Quality,” In: J. W. Doran and A. J. Jones, Eds., Methods for Assessing Soil Quality. Soil Science Society of America, Madison, 1996, pp. 123-141.
|
[24]
|
A. Sharpley, T. Daniel, J. Sims and D. Pote, “Determining environmentally sound soil phosphorus levels,” Journal of Soil and Water Conservation, Vol. 51, No. 2, 1996, pp. 160-166.
|
[25]
|
P. Vadas, P. Kleinman and A. Sharpley, “Relating soil phosphorus to dissolved phosphorus in runoff: A single extraction coefficient for water quality modeling,” Journal of Environmental Quality, Vol. 34, No. 2, 2005, pp. 572-580. doi:10.2134/jeq2005.0572
|
[26]
|
J. Sims, R. Maguire, A. Leytem, K. Gartley and M. Pautler, “Evaluation of Mehlich-3 as an agri-environmental soil phosphorus test for mid-Atlantic United States of America,” Soil Science Society of America Journal, Vol. 66, No. 6, 2002, pp. 2016-2032.
doi:10.2136/sssaj2002.2016
|
[27]
|
D. Ige, O. Akinremi and D. Flaten, “Environmental index for estimating the risk of phosphorus loss in calcareous soils of Manitoba,” Journal of Environmental Quality, Vol. 34, No. 6, 2005, pp. 1944-1951.
doi:10.2134/jeq2004.0468
|
[28]
|
D. D’Angelo, J. Webster and E. Benfield, “Mechanisms of stream phosphorus retention: an experimental study,” Journal of the North American Benthological Society, Vol. 10, No. 3, 1991, pp. 225-237. doi:10.2307/1467596
|
[29]
|
P. McCormick, R. Shuford and M. Chimney, “Periphyton as a potential phosphorus sink in the Everglades Nutrient Removal Project,” Ecological Engineering, Vol. 27, No. 4, 2006, pp. 279-289. doi:10.1016/j.ecoleng.2006.05.018
|
[30]
|
R. McDowell and A. Sharpley, “Uptake and release of phosphorus from overland flow in a stream environment,” Journal of Environmental Quality, Vol. 32, No. 3, 2003, pp. 937-948. doi:10.2134/jeq2003.0937
|
[31]
|
A. Sharpley, S. Chapra, R. Wedepohl, J. Sims, T. Daniel and K. Reddy, “Managing agricultural phosphorus for protection of surface waters: issues and options,” Journal of Environmental Quality, Vol. 23, No. 3, 1994, pp. 437-451. doi:10.2134/jeq1994.00472425002300030006x
|