Water table, drainage, and yield response to drainage water management in southeast Iowa M Helmers, R Christianson, G Brenneman, D Lockett, C Pederson Journal of soil and Water Conservation 67 (6), 495-501, 2012 | 119 | 2012 |
Hydraulic property determination of denitrifying bioreactor fill media L Christianson, A Castelló, R Christianson, M Helmers, A Bhandari Applied Engineering in Agriculture 26 (5), 849-854, 2010 | 100 | 2010 |
Beyond the nutrient strategies: Common ground to accelerate agricultural water quality improvement in the upper Midwest R Christianson, L Christianson, C Wong, M Helmers, G McIsaac, D Mulla, ... Journal of environmental management 206, 1072-1080, 2018 | 96 | 2018 |
Nitrate-Nitrogen Losses through Subsurface Drainage under Various Agricultural Land Covers Z Qi, MJ Helmers, RD Christianson, CH Pederson Journal of Environmental Quality 40 (5), 1578-1585, 2011 | 93 | 2011 |
Modeling and calibration of drainage denitrification bioreactor design criteria L Christianson, R Christianson, M Helmers, C Pederson, A Bhandari Journal of irrigation and drainage engineering 139 (9), 699-709, 2013 | 42 | 2013 |
Saturated buffers: What is their potential impact across the US Midwest? JM Chandrasoma, RD Christianson, LE Christianson Agricultural & Environmental Letters 4 (1), 180059, 2019 | 29 | 2019 |
Modeling Effectiveness of Bioretention Cells for Control of Stormwater Quantity and Quality RD Christianson, BJ Barfield, JC Hayes, K Gasem, GO Brown ASCE, 2004 | 21 | 2004 |
Effectiveness of cover crops for water pollutant reduction from agricultural areas R Christianson, J Fox, N Law, C Wong Transactions of the ASABE 64 (3), 1007-1017, 2021 | 17 | 2021 |
Curve number estimation accuracy on disturbed and undisturbed soils RD Christianson, SL Hutchinson, GO Brown Journal of Hydrologic Engineering 21 (2), 04015059, 2016 | 16 | 2016 |
Literature review and synthesis of the effectiveness of cover crops for water quality management in the Upper Mississippi River Basin (white paper) R Christianson, J Fox, C Wong, D Caraco, A Daniels, N Law, B Stack Center for Watershed Protection, Inc., Ellicott City, Maryland, 2017 | 15 | 2017 |
Effectiveness of conservation crop rotation for water pollutant reduction from agricultural areas L Koropeckyj-Cox, RD Christianson, Y Yuan Transactions of the ASABE 64 (2), 691-704, 2021 | 14 | 2021 |
Iowa Nutrient Reduction Strategy: A science and technology-based framework to assess and reduce nutrients to Iowa waters and the Gulf of Mexico IDALS, IDNR, ISU | 13 | 2013 |
Frontier: eating the metaphorical elephant: meeting nitrogen reduction goals in upper Mississippi River basin states. GW Feyereisen, CH Hay, RD Christianson, MJ Helmers | 12 | 2022 |
Calibration of stainless steel-edged V-notch weir stop logs for water level control structures LE Christianson, RD Christianson, AE Lipka, S Bailey, J Chandrasoma, ... Applied Engineering in Agriculture 35 (5), 745-749, 2019 | 9 | 2019 |
A Qualitative Assessment Tool for Ecologically based Stormwater Systems T Moore, SL Hutchinson, RD Christianson Ecological Engineering Journal, 2011 | 9 | 2011 |
Efficacy of heated tourmaline in reducing biomass clogging within woodchip bioreactors C Ma, L Christianson, X Huang, R Christianson, RA Cooke, R Bhattarai, ... Science of the Total Environment 755, 142401, 2021 | 8 | 2021 |
Nitrate removal and woodchip properties across a paired denitrifying bioreactor treating centralized agricultural ditch flows B Maxwell, L Christianson, RAC Cooke, M Foltz, N Wickramarathne, ... Water 14 (1), 56, 2021 | 6 | 2021 |
Modeling Field-Scale Bioretention Cells with Heterogeneous Infiltration Media RD Christianson, GO Brown, RA Chavez, DE Storm Transactions of the ASABE 55 (4), 1193-1201, 2012 | 6 | 2012 |
Impacts of biota on bioretention cell performance during establishment in the Midwest AM Greene, SL Hutchinson, R Christianson, TL Moore World Environmental and Water Resources Congress 2009: Great Rivers, 1-13, 2009 | 6 | 2009 |
Denitrifying bioreactor woodchip sourcing guidance based on physical and hydraulic properties GM Johnson, RD Christianson, RAC Cooke, C Díaz-García, ... Ecological Engineering 184, 106791, 2022 | 5 | 2022 |