Richard Skaggs

Youssef, M. A., Liu, Y., Chescheir, G. M., Skaggs, R. W., & Negm, L. M. (2021). DRAINMOD modeling framework for simulating controlled drainage effect on lateral seepage from artificially drained fields. AGRICULTURAL WATER MANAGEMENT, 254. https://doi.org/10.1016/j.agwat.2021.106944

Askar, M. H., Youssef, M. A., Vadas, P. A., Hesterberg, D. L., Amoozegar, A., Chescheir, G. M., & Skaggs, R. W. (2021). DRAINMOD-P: A MODEL FOR SIMULATING PHOSPHORUS DYNAMICS AND TRANSPORT IN DRAINED AGRICULTURAL LANDS: I. MODEL DEVELOPMENT. TRANSACTIONS OF THE ASABE, 64(6), 1835–1847. https://doi.org/10.13031/trans.14509

Askar, M. H., Youssef, M. A., Hesterberg, D. L., King, K. W., Amoozegar, A., Skaggs, R. W., … Ghane, E. (2021). DRAINMOD-P: A MODEL FOR SIMULATING PHOSPHORUS DYNAMICS AND TRANSPORT IN DRAINED AGRICULTURAL LANDS: II. MODEL TESTING. TRANSACTIONS OF THE ASABE, 64(6), 1849–1866. https://doi.org/10.13031/trans.14510

Ghane, E., Askar, M. H., & Skaggs, R. W. (2021). Design drainage rates to optimize crop production for subsurface-drained fields. AGRICULTURAL WATER MANAGEMENT, 257. https://doi.org/10.1016/j.agwat.2021.107045

Askar, M. H., Youssef, M. A., Chescheir, G. M., Negm, L. M., King, K. W., Hesterberg, D. L., … Skaggs, R. W. (2020). DRAINMOD Simulation of macropore flow at subsurface drained agricultural fields: Model modification and field testing. AGRICULTURAL WATER MANAGEMENT, 242. https://doi.org/10.1016/j.agwat.2020.106401

Skaggs, R. W., Amatya, D. M., & Chescheir, G. M. (2020). Effects of Drainage for Silviculture on Wetland Hydrology. WETLANDS, 40(1), 47–64. https://doi.org/10.1007/s13157-019-01202-6

Amatya, D. M., Chescheir, M., Williams, M., Skaggs, W., & Tian, S. (2020). Long-Term Water Table Dynamics of Forested Wetlands: Drivers and their Effects on Wetland Hydrology in The Southeastern Atlantic Coastal Plain. WETLANDS, 40(1), 65–79. https://doi.org/10.1007/s13157-019-01153-y

Vepraskas, M. J., Skaggs, R. W., & Caldwell, P. (2020). Method to Assess Climate Change Impacts on Hydrologic Boundaries of Individual Wetlands. WETLANDS, 40(2), 365–376. https://doi.org/10.1007/s13157-019-01183-6

Amatya, D. M., Williams, T. M., Nettles, J. E., Skaggs, R. W., & Trettin, C. C. (2019). COMPARISON OF HYDROLOGY OF TWO ATLANTIC COASTAL PLAIN FORESTS. TRANSACTIONS OF THE ASABE, 62(6), 1509–1529. https://doi.org/10.13031/trans.13387

Negm, L. M., Youssef, M. A., Chescheir, G. M., & Skaggs, R. W. (2019, December 20). DRAINMOD-based tools for quantifying reductions in annual drainage flow and nitrate losses resulting from drainage water management on croplands in eastern North Carolina (vol 166, pg 86, 2016). AGRICULTURAL WATER MANAGEMENT, Vol. 226. https://doi.org/10.1016/j.agwat.2019.105811

Liu, Y., Youssef, M. A., Chescheir, G. M., Appelboom, T. W., Poole, C. A., Arellano, C., & Skaggs, R. W. (2019). Effect of controlled drainage on nitrogen fate and transport for a subsurface drained grass field receiving liquid swine lagoon effluent. AGRICULTURAL WATER MANAGEMENT, 217, 440–451. https://doi.org/10.1016/j.agwat.2019.02.018

Cacho, J. F., Youssef, M. A., Shi, W., Chescheir, G. M., Skaggs, R. W., Tian, S., … Arellano, C. (2019). Impacts on soil nitrogen availability of converting managed pine plantation into switchgrass monoculture for bioenergy. SCIENCE OF THE TOTAL ENVIRONMENT, 654, 1326–1336. https://doi.org/10.1016/j.scitotenv.2018.11.133

Strock, J. S., Hay, C. H., Helmers, M. J., Nelson, K. A., Sands, G. R., Skaggs, R. W., & Douglas-Mankin, K. R. (2018). ADVANCES IN DRAINAGE: SELECTED WORKS FROM THE TENTH INTERNATIONAL DRAINAGE SYMPOSIUM. TRANSACTIONS OF THE ASABE, Vol. 61, pp. 161–168. https://doi.org/10.13031/trans.12668

Youssef, M. A., Abdelbaki, A. M., Negm, L. M., Skaggs, R. W., Thorp, K. R., & Jaynes, D. B. (2018). DRAINMOD-simulated performance of controlled drainage across the US Midwest. AGRICULTURAL WATER MANAGEMENT, 197, 54–66. https://doi.org/10.1016/j.agwat.2017.11.012

Poole, C. A., Skaggs, R. W., Youssef, M. A., Chescheir, G. M., & Crozier, C. R. (2018). EFFECT OF DRAINAGE WATER MANAGEMENT ON NITRATE NITROGEN LOSS TO TILE DRAINS IN NORTH CAROLINA. TRANSACTIONS OF THE ASABE, Vol. 61, pp. 233–244. https://doi.org/10.13031/trans.12296

Skaggs, R. W. (2017). COEFFICIENTS FOR QUANTIFYING SUBSURFACE DRAINAGE RATES. APPLIED ENGINEERING IN AGRICULTURE, 33(6), 793–799. https://doi.org/10.13031/aea.12302

Ssegane, H., Amatya, D. M., Muwamba, A., Chescheir, G. M., Appelboom, T., Tollner, E. W., … al. (2017). Calibration of paired watersheds: Utility of moving sums in presence of externalities. Hydrological Processes, 31(20), 3458–3471. https://doi.org/10.1002/hyp.11248

Muwamba, A., Amatya, D. M., Chescheir, G. M., Nettles, J. E., Appelboom, T., Ssegane, H., … Tian, S. (2017). Water Quality Effects of Switchgrass Intercropping on Pine Forest in Coastal North Carolina. Transactions of the ASABE, 60(5), 1607–1620. https://doi.org/10.13031/trans.12181

Negm, L. M., Youssef, M. A., Chescheir, G. M., & Skaggs, R. W. (2016). DRAINMOD-based tools for quantifying reductions in annual drainage flow and nitrate losses resulting from drainage water management on croplands in eastern North Carolina. AGRICULTURAL WATER MANAGEMENT, 166, 86–100. https://doi.org/10.1016/j.agwat.2015.12.014

Skaggs, R. W., Tian, S., Chescheir, G. M., Amatya, D. M., & Youssef, M. A. (2016). Forest drainage. Forest Hydrology: Processes, Management and Assessment, 124–140. https://doi.org/10.1079/9781780646602.0124

McDaniel, V., Skaggs, R. W., & Negm, L. M. (2016). INJURY AND RECOVERY OF MAIZE ROOTS AFFECTED BY FLOODING. APPLIED ENGINEERING IN AGRICULTURE, 32(5), 627–638. https://doi.org/10.13031/aea.32.11633

Muwamba, A., Amatya, D. M., Ssegane, H., Chescheir, G. M., Appelboom, T., Tollner, E. W., … Tian, S. (2015). Effects of Site Preparation for Pine Forest/Switchgrass Intercropping on Water Quality. Journal of Environment Quality, 44(4), 1263. https://doi.org/10.2134/jeq2014.11.0505

Arnold, J. G., Youssef, M. A., Yen, H., White, M. J., Sheshukov, A. Y., Sadeghi, A. M., … Gowda, P. H. (2015). Hydrological processes and model representation: Impact of soft data on calibration. Transactions of the ASABE, 58(6), 1637–1660. https://doi.org/10.13031/trans.58.10726

Cacho, J. F., Youssef, M. A., Chescheir, G. M., Skaggs, R. W., Leggett, Z. H., Sucre, E. B., … Arellano, C. (2015). Impacts of switchgrass-loblolly pine intercropping on soil physical properties of a drained forest. Transactions of the ASABE, 58(6), 1573–1583. https://doi.org/10.13031/trans.58.11238

Tian, S., Youssef, M. A., Sun, G., Chescheir, G. M., Noormets, A., Amatya, D. M., … Domec, J.-C. (2015). Testing DRAINMOD-FOREST for predicting evapotranspiration in a mid-rotation pine plantation. FOREST ECOLOGY AND MANAGEMENT, 355, 37–47. https://doi.org/10.1016/j.foreco.2015.03.028

Negm, L. M., Youssef, M. A., Skaggs, R. W., Chescheir, G. M., & Kladivko, E. J. (2014). DRAINMOD-DSSAT Simulation of the Hydrology, Nitrogen Dynamics, and Plant Growth of a Drained Corn Field in Indiana. JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING, 140(8). https://doi.org/10.1061/(asce)ir.1943-4774.0000738

Brown, R. A., Skaggs, R. W., & Hunt, W. F., III. (2013). Calibration and validation of DRAINMOD to model bioretention hydrology. Journal of Hydrology, 486, 430–442. https://doi.org/10.1016/j.jhydrol.2013.02.017

Poole, C. A., Skaggs, R. W., Cheschier, G. M., Youssef, M. A., & Crozier, C. R. (2013). Effects of drainage water management on crop yields in North Carolina. JOURNAL OF SOIL AND WATER CONSERVATION, 68(6), 429–437. https://doi.org/10.2489/jswc.68.6.429

Kim, H. W., Amatya, D. M., Chescheir, G. M., Skaggs, W. R., & Nettles, J. E. (2013). Hydrologic Effects of Size and Location of Fields Converted from Drained Pine Forest to Agricultural Cropland. JOURNAL OF HYDROLOGIC ENGINEERING, 18(5), 552–566. https://doi.org/10.1061/(asce)he.1943-5584.0000566

Tian, S., Youssef, M. A., Skaggs, R. W., Chescheir, G. M., & Amatya, D. M. (2013). [Review of Predicting dissolved organic nitrogen export from a drained loblolly pine plantation]. WATER RESOURCES RESEARCH, 49(4), 1952–1967. https://doi.org/10.1002/wrcr.20157

Amatya, D. M., Rossi, C. G., Saleh, A., Dai, Z., Youssef, M. A., Williams, R. G., … Tian, S. (2013). [Review of Review of nitrogen fate models applicable to forest landscapes in the southern US]. Transactions of the ASABE, 56(5), 1731–1757. https://doi.org/10.13031/trans.56.10096

Skaggs, R. W., Youssef, M. A., & Chescheir, G. M. (2012). A Drainmod-based method to estimate effects of drainage water management on annual nitrogen loss to surface water. Transactions of the ASABE, 55(3), 799–808. https://doi.org/10.13031/2013.41515

Skaggs, R. W., Fausey, N. R., & Evans, R. O. (2012). Drainage water management. JOURNAL OF SOIL AND WATER CONSERVATION, Vol. 67, pp. 167A–172A. https://doi.org/10.2489/jswc.67.6.167a

Skaggs, R. W., Youssef, M. A., & Chescheir, G. M. (2012). Drainmod: model use, calibration, and validation. Transactions of the ASABE, 55(4), 1509–1522. https://doi.org/10.13031/2013.42259

Tian, S., Youssef, M. A., Skaggs, R. W., Amatya, D. M., & Chescheir, G. M. (2012). Modeling water, carbon, and nitrogen dynamics for two drained pine plantations under intensive management practices. FOREST ECOLOGY AND MANAGEMENT, 264, 20–36. https://doi.org/10.1016/j.foreco.2011.09.041

Tian, S., Youssef, M. A., Skaggs, R. W., Amatya, D. M., & Chescheir, G. M. (2012). Temporal Variations and Controlling Factors of Nitrogen Export from an Artificially Drained Coastal Forest. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 46(18), 9956–9963. https://doi.org/10.1021/es3011783

Amatya, D. M., Douglas-Mankin, K. R., Williams, T. M., Skaggs, R. W., & Nettles, J. E. (2011). Advances in forest hydrology: Challenges and opportunities. Transactions of the ASABE, 54(6), 2049–2056. https://doi.org/10.13031/2013.40672

Skaggs, R. W., Phillips, B. D., Chescheir, G. M., & Trettin, C. C. (2011). Effect of minor drainage on hydrology of forested wetlands. Transactions of the ASABE, 54(6), 2139–2149. https://doi.org/10.13031/2013.40665

Skaggs, R. W., Chescheir, G. M., Fernandez, G. P., Amatya, D. M., & Diggs, J. (2011). Effects of land use on soil properties and hydrology of drained coastal plain watersheds. Transactions of the ASABE, 54(4), 1357–1365. https://doi.org/10.13031/2013.39037

Birgand, F., Appelboom, T. W., Chescheir, G. M., & Skaggs, R. W. (2011). Estimating Nitrogen, Phosphorus, and Carbon Fluxes in Forested and Mixed-Use Watersheds of the Lower Coastal Plain of North Carolina: Uncertainties Associated with Infrequent Sampling. Transactions of the ASABE, 54(6), 2099–2110. https://doi.org/10.13031/2013.40668

Sampson, D. A., Amatya, D. M., Lawson, C. D. B., & Skaggs, R. W. (2011). Leaf area index (lai) of loblolly pine and emergent vegetation following a harvest. Transactions of the ASABE, 54(6), 2057–2066. https://doi.org/10.13031/2013.40664

Caldwell, P. V., Vepraskas, M., Gregory, J. D., Skaggs, R. W., & Huffman, R. L. (2011). Linking plant ecology and long-term hydrology to improve wetland restoration success. Transactions of the ASABE, 54(6), 2129–2137. https://doi.org/10.13031/2013.40662

Amatya, D. M., & Skaggs, R. W. (2011). Long-term hydrology and water quality of a drained pine plantation in North Carolina. Transactions of the ASABE, 54(6), 2087–2098. https://doi.org/10.13031/2013.40667

Phillips, B. D., Skaggs, R. W., & Chescheir, G. M. (2010). A method to determine lateral effect of a drainage ditch on wetland hydrology: Field testing. Transactions of the ASABE, 53(4), 1087–1096. https://doi.org/10.13031/2013.32599

Skaggs, R. W., Youssef, M. A., Gilliam, J. W., & Evans, R. O. (2010). Effect of controlled drainage on water and nitrogen balances in drained lands. Transactions of the ASABE, 53(6), 1843–1850. https://doi.org/10.13031/2013.35810

Sun, G., Noormets, A., Gavazzi, M. J., McNulty, S. G., Chen, J., Domec, J.-C., … Skaggs, R. W. (2010, March 20). Energy and water balance of two contrasting loblolly pine plantations on the lower coastal plain of North Carolina, USA. FOREST ECOLOGY AND MANAGEMENT, Vol. 259, pp. 1299–1310. https://doi.org/10.1016/j.foreco.2009.09.016

Noormets, A., Sun, G., McNulty, S. G., Gavazzi, M. J., Chen, J., Domec, J. C., … Skaggs, R. W. (2010). Energy and water balance of two contrasting loblolly pine plantations on the lower coastal plain of North Carolina, USA (vol 259, pg 1299, 2010). Forest Ecology and Management, Vol. 260, pp. 169–169.

Beltran, B. J., Amatya, D. M., Youssef, M., Jones, M., Callahan, T. J., Skaggs, R. W., & Nettles, J. E. (2010). Impacts of Fertilization on Water Quality of a Drained Pine Plantation: A Worst Case Scenario. JOURNAL OF ENVIRONMENTAL QUALITY, 39(1), 293–303. https://doi.org/10.2134/jeq2008.0506

Salazar, O., Joel, A., Wesstrom, I., Linner, H., & Skaggs, R. W. (2010). Modelling discharge from a coastal watershed in southeast Sweden using an integrated framework. HYDROLOGICAL PROCESSES, 24(26), 3837–3851. https://doi.org/10.1002/hyp.7815

Appelboom, T. W., Chescheir, G. M., Birgand, F., Skaggs, R. W., Gilliam, J. W., & Amatya, D. (2010). Temperature Coefficient for Modeling Denitrification in Surface Water Sediments Using the Mass Transfer Coefficient. Transactions of the ASABE, 53(2), 465–474. https://doi.org/10.13031/2013.29578

Salazar, O., Wesstrom, I., Youssef, M. A., Skaggs, R. W., & Joel, A. (2009). Evaluation of the DRAINMOD-N II model for predicting nitrogen losses in a loamy sand under cultivation in south-east Sweden. AGRICULTURAL WATER MANAGEMENT, 96(2), 267–281. https://doi.org/10.1016/j.agwat.2008.08.008

Appelboom, T. W., Chescheir, G. M., Skaggs, R. W., Gilliam, J. W., & Amatya, D. M. (2008). Nitrogen balance for a plantation forest drainage canal on the North Carolina coastal plain. Transactions of the ASABE, 51(4), 1215–1233. https://doi.org/10.13031/2013.25239

Fernandez, G., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2007). Application of DRAINMOD-GIS to a lower coastal plain watershed. Transactions of the ASABE, 50(2), 439–447. https://doi.org/10.13031/2013.22635

Skaggs, R. W. (2007). Criteria for calculating drain spacing and depth. Transactions of the ASABE, 50(5), 1657–1662. https://doi.org/10.13031/2013.23971

Grace, J. M., Skaggs, R. W., & Cassel, D. K. (2007). Influence of thinning loblolly pine (Pinus taeda L.) on hydraulic properties of an organic soil. Transactions of the ASABE, 50(2), 517–522. https://doi.org/10.13031/2013.22640

Birgand, F., Skaggs, R. W., Chescheir, G. M., & Gilliam, J. W. (2007). Nitrogen Removal in Streams of Agricultural Catchments—A Literature Review. Critical Reviews in Environmental Science and Technology, 37(5), 381–487. https://doi.org/10.1080/10643380600966426

Bechtold, I., Koehne, S., Youssef, M. A., Lennartz, B., & Skaggs, R. W. (2007). Simulating nitrogen leaching and turnover in a subsurface-drained grassland receiving animal manure in Northern Germany using DRAINMOD-N II. AGRICULTURAL WATER MANAGEMENT, 93(1-2), 30–44. https://doi.org/10.1016/j.agwat.2007.06.001

Caldwell, P. V., Vepraskas, M. J., Skaggs, R. W., & Gregory, J. D. (2007). Simulating the water budgets of natural Carolina bay wetlands. WETLANDS, 27(4), 1112–1123. https://doi.org/10.1672/0277-5212(2007)27[1112:stwbon]2.0.co;2

Stackelberg, N. O., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2007). Simulation of the hydrologic effects of afforestation in the Tacuarembo River basin, Uruguay. Transactions of the ASABE, 50(2), 455–468. https://doi.org/10.13031/2013.22636

Burchell, M. R., II, Skaggs, R. W., Lee, C. R., Broome, S., Chescheir, G. M., & Osborne, J. (2007). Substrate organic matter to improve nitrate removal in surface-flow constructed wetlands. JOURNAL OF ENVIRONMENTAL QUALITY, 36(1), 194–207. https://doi.org/10.2134/jeq2006.0022

Fernandez, G. P., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2006). DRAINMOD-GIS: A lumped parameter watershed scale drainage and water quality model. AGRICULTURAL WATER MANAGEMENT, 81(1-2), 77–97. https://doi.org/10.1016/j.agwat.2005.03.004

Skaggs, R. W., Youssef, M. A., & Chescheir, G. M. (2006). Drainage design coefficients for eastern United States. AGRICULTURAL WATER MANAGEMENT, 86(1-2), 40–49. https://doi.org/10.1016/j.agwat.2006.06.007

Youssef, M. A., Skaggs, R. W., Chescheir, G. M., & Gilliam, J. W. (2006). Field evaluation of a model for predicting nitrogen losses from drained lands. JOURNAL OF ENVIRONMENTAL QUALITY, Vol. 35, pp. 2026–2042. https://doi.org/10.2134/jeq2005.0249

Grace, J. M., Skaggs, R. W., & Chescheir, G. M. (2006). Hydrologic and water quality effects of thinning loblolly pine. Transactions of the ASABE, 49(3), 645–654. https://doi.org/10.13031/2013.20484

Boyer, E. W., Alexander, R. B., Parton, W. J., Li, C., Butterbach-Bahl, K., Donner, S. D., … Del Gross, S. J. (2006). [Review of Modeling denitrification in terrestrial and aquatic ecosystems at regional scales]. ECOLOGICAL APPLICATIONS, 16(6), 2123–2142. https://doi.org/10.1890/1051-0761(2006)016[2123:mditaa]2.0.co;2

Grace, J. M., Skaggs, R. W., & Cassel, D. K. (2006). Soil physical changes associated with forest harvesting operations on an organic soil. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 70(2), 503–509. https://doi.org/10.2136/sssaj2005.0154

Fernandez, G. P., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2005). Development and testing of watershed-scale models for poorly drained soils. Transactions of the ASAE, 48(2), 639–652. https://doi.org/10.13031/2013.18323

Skaggs, R. W., Youssef, M. A., Chescheir, G. M., & Gilliam, J. W. (2005). Effect of drainage intensity on nitrogen losses from drained lands. Transactions of the ASAE, 48(6), 2169–2177. https://doi.org/10.13031/2013.20103

Shelby, J. D., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2005). Hydrologic and water-quality response of forested and agricultural lands during the 1999 extreme weather conditions in eastern North Carolina. Transactions of the ASAE, 48(6), 2179–2188. https://doi.org/10.13031/2013.20104

Wang, X., Youssef, M. A., Skaggs, R. W., Atwood, J. D., & Frankenberger, J. R. (2005). Sensitivity analyses of the nitrogen simulation model, DRAINMOD-N II. Transactions of the ASAE, 48(6), 2205–2212. https://doi.org/10.13031/2013.20106

Burchell, M., Skaggs, R. W., Chescheir, G. M., Gilliam, J. W., & Arnold, L. A. (2005). Shallow subsurface drains to reduce nitrate losses from drained agricultural lands. Transactions of the ASAE, 48(3), 1079–1089. https://doi.org/10.13031/2013.18518

Youssef, M. A., Skaggs, R. W., Chescheir, G. M., & Gilliam, J. W. (2005). The  nitrogen simulation model, DRAINMOD-N II. Transactions of the ASAE, 48(2), 611–626. https://doi.org/10.13031/2013.18335

Vepraskas, M. J., He, X., Lindbo, D. L., & Skaggs, R. W. (2004). Calibrating hydric soil field indicators to long-term wetland hydrology. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 68(4), 1461–1469. https://doi.org/10.2136/sssaj2004.1461

Amatya, D. M., Chescheir, G. M., Fernandez, G. P., Skaggs, R. W., & Gilliam, J. W. (2004). DRAINWAT-based methods for estimating nitrogen transport in poorly drained watersheds. Transactions of the ASAE, 47(3), 677–687. https://doi.org/10.13031/2013.16100

Reyes, M. R., Skaggs, R. W., & Bengtson, R. L. (2004). GLEAMS-SWT with nutrients. Transactions of the ASAE, 47(1), 129–132. https://doi.org/10.13031/2013.15871

Ha, Z., Evans, R. O., Luo, W., & Skaggs, R. W. (2004). Modification and use of DRAINMOD to evaluate a lagoon effluent land application system. Transactions of the ASAE, 47(1), 47–58. https://doi.org/10.13031/2013.15869

He, X., Vepraskas, M. J., Lindbo, D. L., & Skaggs, R. W. (2003). A method to predict soil saturation frequency and duration from soil color. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 67(3), 961–969. https://doi.org/10.2136/sssaj2003.0961

Haan, P. K., & Skaggs, R. W. (2003). Effect of parameter uncertainty on DRAINMOD predictions: I. Hydrology and yield. Transactions of the ASAE, 46(4), 1061–1067. https://doi.org/10.13031/2013.13968

Haan, P. K., & Skaggs, R. W. (2003). Effect of parameter uncertainty on DRAINMOD predictions: II. Nitrogen loss. Transactions of the ASAE, 46(4), 1069–1075. https://doi.org/10.13031/2013.13969

Amatya, D. M., Skaggs, R. W., Gilliam, J. W., & Hughes, J. H. (2003). Effects of orifice-weir outlet on hydrology and water quality of a drained forested watershed. Southern Journal of Applied Forestry, 27(2), 130–142.

Skaggs, R. W., & Chescheir, G. M. (2003). Effects of subsurface drain depth on nitrogen losses from drained lands. Transactions of the ASAE, 46(2), 237–244. https://doi.org/10.13031/2013.12974

Chescheir, G. M., Lebo, M. E., Amatya, D. M., Hughes, J., Gilliam, J. W., Skaggs, R. W., & Herrmann, R. B. (2003). Hydrology and water quality of forested lands in eastern North Carolina. Raleigh, N.C. : N.C. Agricultural Research Service, N.C. State University.

Sun, G., McNulty, S. G., Amatya, D. M., Skaggs, R. W., Swift, L. W., Shepard, J. P., & Riekerk, H. (2002). A comparison of the watershed hydrology of coastal forested wetlands and the mountainous uplands in the Southern US. JOURNAL OF HYDROLOGY, 263(1-4), 92–104. https://doi.org/10.1016/S0022-1694(02)00064-1

He, X., Vepraskas, M. J., Skaggs, R. W., & Lindbo, D. L. (2002). Adapting a drainage model to simulate water table levels in coastal plain soils. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 66(5), 1722–1731. https://doi.org/10.2136/sssaj2002.1722

El-Sadek, A., Feyen, J., Skaggs, W., & Berlamont, J. (2002). Economics of nitrate losses from drained agricultural land. Journal of Environmental Engineering (New York, N.Y.), 128(4), 376–383. https://doi.org/10.1061/(asce)0733-9372(2002)128:4(376)

Appelboom, T. W., Chescheir, G. M., Skaggs, R. W., & Hesterberg, D. (2002). Management practices for sediment reduction from forest roads in the coastal plains. Transactions of the ASAE, 45(2), 337–344. https://doi.org/10.13031/2013.8529

Fernandez, G. P., Chescheir, G. M., Skaggs, R. W., & Amatya, D. M. (2002). Watgis: A GIS-based lumped parameter water quality model. Transactions of the ASAE, 45(3), 593–600. https://doi.org/10.13031/2013.8822

Luo, W., Skaggs, R. W., & Chescheir, G. M. (2001). DRAINMOD modifications for cold conditions. Transactions of the ASAE, 43(6), 1569–1582. https://doi.org/10.13031/2013.3057

Sun, G., McNulty, S. G., Shepard, J. P., Amatya, D. M., Riekerk, H., Comerford, N. B., … Swift, L. (2001, April 1). Effects of timber management on the hydrology of wetland forests in the southern United States. FOREST ECOLOGY AND MANAGEMENT, Vol. 143, pp. 227–236. https://doi.org/10.1016/s0378-1127(00)00520-x

Amatya, D. M., & Skaggs, R. W. (2001). Hydrologic modeling of a drained pine plantation on poorly drained soils. Forest Science, 47(1), 103–114.

Luo, W., Skaggs, R. W., Madani, A., Cizikci, S., & Mavi, A. (2001). Predicting field hydrology in cold conditions with DRAINMOD. Transactions of the ASAE, 44(4), 825–834. https://doi.org/10.13031/2013.6247

Borin, M., Morari, F., Bonaiti, G., Paasch, M., & Skaggs, R. W. (2000). Analysis of DRAINMOD performances with different detail of soil input data in the Veneto region of Italy. AGRICULTURAL WATER MANAGEMENT, 42(3), 259–272. https://doi.org/10.1016/S0378-3774(99)00044-X

Sun, G., Amatya, D. M., McNulty, S. G., Skaggs, R. W., & Hughes, J. H. (2000). Climate change impacts on the hydrology and productivity of a pine plantation. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 36(2), 367–374. https://doi.org/10.1111/j.1752-1688.2000.tb04274.x

Amatya, D. M., Gregory, J. D., & Skaggs, R. W. (2000). Effects of controlled drainage on storm event hydrology in a loblolly pine plantation. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 36(1), 175–190. https://doi.org/10.1111/j.1752-1688.2000.tb04258.x

Skaggs, R. W., & Schilfgaarde, J. van. (1999). Agricultural drainage. Madison, Wis.: American Society of Agronomy, Inc.; Crop Science Society of America, Inc.; Soil Science Society of America, Inc.

Skaggs, R. W., & Chescheir, G. M. (1999). Application of simulation models. In R.W. Skaggs & J. Schilfgaarde (Eds.), Agricultural drainage: Chapter 15  (Agronomy ; no. 38). (pp. 537–564). https://doi.org/10.2134/agronmonogr38.c16

Skaggs, R. W. (1999). Drainage simulation models. In R.W. Skaggs & J. Schilfgaarde (Eds.), Agricultural drainage: Chapter 13  (Agronomy ; no. 38). (pp. 469–500). https://doi.org/10.2134/agronmonogr38.c14

Skaggs, R. W., & Chescheir, G. M. (1999). Drains in depth. Studies focus on nitrogen losses from agricultural lands. Resource, Engineering & Technology for a Sustainable World, 6(9), 13.

Fernandez, G. P., Chescheir, G. M., Amatya, D. M., & Skaggs, R. W. (1999). GIS-based water quality lumped parameter model. Proceedings of the Mini-Conference, Advances in Water Quality Modeling, (1999), 65–70. St. Joseph, MI: ASAE.

Skaggs, R. W., & Schilfgaarde, J. van. (1999). Introduction. In R.W. Skaggs & J. Schilfgaarde (Eds.), Agricultural drainage: Chapter 1  (Agronomy ; no. 38). (pp. 3–10). https://doi.org/10.2134/agronmonogr38.c1

Sun, G., Amatya, D. M., McNulty, S. G., Skaggs, R. W., & Hughes, J. H. (1999). Potential impact of climate change on the hydrology and productivity of a drained loblolly pine plantation in North Carolina. Proceedings: Specialty Conference on Potential Consequences of Climate Variability and Change to Water Resources of the United States: May 10-12, 1999, Atlanta, Georgia  (American Water Resources Association technical publication series ; TPS-99-1)., 403–408. Herndon, VA: American Water Resources Association.

Birgand, F., Chescheir, G. M., Skaggs, R. W., & Gilliam, J. W. (1999). Quantification and effects of in-stream processes in the ditches and canals of the Lower Coastal Plain of North Carolina. Proceedings of the Mini-Conference, Advances in Water Quality Modeling, (1999), 45–50. St. Joseph, MI: ASAE.

Amatya, D. M., Chescheir, G. M., Fernandez, G. P., & Skaggs, R. W. (1999). Testing of a watershed scale hydrologic/water quality model for poorly drained soils. Proceedings of the Mini-Conference, Advances in Water Quality Modeling, (1999), 33–39. St. Joseph, MI: ASAE.

Skaggs, R. W. (1999). Water table management: Subirrigation and controlled drainage. In R.W. Skaggs & J. Schilfgaarde (Eds.), Agricultural drainage (Agronomy ; no. 38.) (pp. 695–718). https://doi.org/10.2134/agronmonogr38.c21

Fernandez, G. P., Skaggs, R. W., Chescheir, G. M., & Amatya, D. M. (1999). Watershed scale GIS based lumped parameter water quality model. In S. P. L. Amusy & M. Fritsch (Eds.), Proceedings of 2nd Inter-Regional Conference on Environment-Water, Emerging Technologies for Sustainable Land Use and Water Management. Lausanne, Switzerland: Presses Polytechniques et Universitaries Romandes.

Fernandez, G. P., Chescheir, G. M., & Skaggs, R. W. (1998). DRAINMOD 5.0: A Windows version that considers crop yield, nitrogen and salinity. Drainage in the 21st century: Food production and the environment: Proceedings of the seventh International Drainage Symposium, 220–226. St. Joseph, Michigan: American Society of Agricultural Engineers.

Amatya, D. M., Gilliam, J. W., Skaggs, R. W., Lebo, M. E., & Campbell, R. G. (1998). Effects of controlled drainage on forest water quality. JOURNAL OF ENVIRONMENTAL QUALITY, 27(4), 923–935. https://doi.org/10.2134/jeq1998.00472425002700040029x

Amatya, D. M., Chescheir, G. M., Skaggs, R. W., Fernandez, G., & Birgand, F. (1998). Evaluation of a DRAINMOD based watershed scale model. Drainage in the 21st century: Food production and the environment: Proceedings of the seventh International Drainage Symposium, 211–219. St. Joseph, Michigan: American Society of Agricultural Engineers.

Skaggs, W. (1998). Lumped parameter water quality modeling using a probabilistic approach. In Report (Water Resources Research Institute of the University of North Carolina). Raleigh, NC: University of North Carolina Water Resources Research Institute.

Salem, H. E., & Skaggs, R. W. (1998). Predicting drainage rates under varying water table conditions. Drainage in the 21st century: Food production and the environment: Proceedings of the seventh International Drainage Symposium, 168–175. St. Joseph, Michigan: American Society of Agricultural Engineers.

Breve, M. A., Skaggs, R. W., Parsons, J. E., & Gilliam, J. W. (1998). Using the DRAINMOD-N model to study effects of drainage system design and management on crop productivity, profitability and NO3-N losses in drainage water. AGRICULTURAL WATER MANAGEMENT, 35(3), 227–243. https://doi.org/10.1016/S0378-3774(97)00035-8

Breve, M. A., Skaggs, R. W., Parsons, J. E., & Gilliam, J. W. (1997). DRAINMOD-N, a nitrogen model for artificially drained soils. Transactions of the ASAE, 40(4), 1067–1075. https://doi.org/10.13031/2013.21359

Amatya, D. M., Skaggs, R. W., & Gregory, J. D. (1997). Evaluation of a watershed scale forest hydrologic model. AGRICULTURAL WATER MANAGEMENT, 32(3), 239–258. https://doi.org/10.1016/S0378-3774(96)01274-7

Breve, M. A., Skaggs, R. W., Gilliam, J. W., Parsons, J. E., Mohammad, A. T., Chescheir, G. M., & Evans, R. O. (1997). Field testing of DRAINMOD-N. Transactions of the ASAE, 40(4), 1077–1085. https://doi.org/10.13031/2013.21360

Giraud, F., Faure, J. B., Zimmer, D., Lefeuvre, J. C., & Skaggs, R. W. (1997). Hydrologic modeling of a complex wetland. Journal of Irrigation and Drainage Engineering, 123(5), 344–353. https://doi.org/10.1061/(ASCE)0733-9437(1997)123:5(344)

Amatya, D. M., Skaggs, R. W., Gregory, J. D., & Herrmann, R. B. (1997). Hydrology of a drained forested Pocosin watershed. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 33(3), 535–546. https://doi.org/10.1111/j.1752-1688.1997.tb03530.x

Skaggs, R. W., Breve, M. A., & Gilliam, J. W. (1995). Predicting effects of water table management on loss of nitrogen from poorly drained soils. EUROPEAN JOURNAL OF AGRONOMY, Vol. 4, pp. 441–451. https://doi.org/10.1016/S1161-0301(14)80096-8

Skaggs, R. W., Breve, M. A., Mohammad, A. T., Parsons, J. E., & Gilliam, J. W. (1995). Simulation of drainage water quality of DRAINMOD. Irrigation and Drainage Systems, 9(3), 259. https://doi.org/10.1007/bf00880867

Skaggs, R. W., Amatya, D., Evans, R. O., & Parsons, J. E. (1994). Characterization and evaluation of proposed hydrologic criteria for wetlands. Journal of Soil & Water Conservation, 49(5), 501.

SKAGGS, R. W., BREVE, M. A., & GILLIAM, J. W. (1994). [Review of HYDROLOGIC AND WATER-QUALITY IMPACTS OF AGRICULTURAL DRAINAGE]. CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 24(1), 1–32. https://doi.org/10.1080/10643389409388459

Skaggs, R. W., & Nassehzadeh-Tabrizi, A. (1983). Optimum drainage for corn production. Technical Bulletin (North Carolina Agricultural Experiment Station), (274), 41.

Skaggs, R. W., & Khaleel, R. (1982). Infiltration. In H. P. J. C. T. Haan & D. L. Brakensiek (Eds.), Hydrologic modeling of small watersheds (p. 119). St. Joseph, Mich.: American Society of Agricultural Engineers.

Skaggs, R. W., Nassehzadeh-Tabrizi, A., & Foster, G. R. (1982). Subsurface drainage effects on erosion. Journal of Soil & Water Conservation, 37(3), 167.

Skaggs, R. W., & Gilliam, J. W. (1981). Effect of drainage system design and operation on nitrate transport. Transactions of the ASAE, 24(4), 929. https://doi.org/10.13031/2013.34366

Skaggs, R. W., Fausey, N. R., & Nolte, B. H. (1981). Water management model evaluation for North Central Ohio. Transactions of the ASAE, 24(4), 922. https://doi.org/10.13031/2013.34365

Skaggs, R. W. (1980). A water management model for artificially drained soils. Technical Bulletin (North Carolina Agricultural Experiment Station), (267), 54.

Skaggs, R. W., & Tang, Y. K. (1979). Effect of drain diameter, openings and envelopes on water table drawdown. Transactions of the ASAE, 22(2), 326. https://doi.org/10.13031/2013.35014

Skaggs, R. W., Hardjoamidjojo, S., & Wiser, E. H. (1979). Simulation of crop response to surface and subsurface drainage systems. Paper (American Society of Agricultural Engineers), (79-2555), 13.

Skaggs, R. W., Fausey, N. R., & Nolte, B. H. (1979). Water management model evaluation for North Central Ohio. Paper (American Society of Agricultural Engineers), (79-2070), 25.

Skaggs, R. W. (1979). Water movement factors important to design and operation of subirrigation systems. Paper (American Society of Agricultural Engineers), (79-2543), 16.

Skaggs, R. W. (1978). A water management model for shallow water table soils. In A water management model for shallow water table soils (p. 178). Raleigh:  Water Resources Research Institute of the University of North Carolina.

Skaggs, R. W. (1978). Effect of drain tube openings on water-table drawdown. Journal of the Irrigation and Drainage Division, 104, 13.

Skaggs, R. W. (1973). Water table movement during subirrigation. Transactions of the ASAE, 16(5), 988. https://doi.org/10.13031/2013.37678