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                    U.S. DEPARTMENT OF AGRICULTURE
 Northwest Irrigation and Soils Research: Kimberly, ID
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ARS Home Pacific West Area Kimberly, Idaho Northwest Irrigation and Soils Research People & Locations







Sayjro Kossi Nouwakpo
                        Northwest Irrigation and Soils Research

                        




                        
                        Research Soil Scientist
                        Phone: (208) 423-6508
                        
                        
                        Fax: (208) 423-6555(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)
                            ProjectsImproving Water Productivity and Quality in Irrigated Landscapes of the Northwestern United States
                                                    In-House Appropriated
                                                                    (D)Accession Number: 441338Hydrology and Erosion Dynamics Following Compost Applications on Annual Grassland
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 440925FY 2021 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (On Croplands) - Kimberly
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 440997FY 2022 Conservation Effects Assessment Project (CEAP) - Benchmark Watershed Assessment Studies (on croplands)
                                                    Interagency Reimbursable Agreement
                                                                    (I)Accession Number: 443238Mapping Irrigation Methods using Artificial Intelligence
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 444583Consequences of Uniformly Managing Irrigated Fields with Variable Soil Depths
                                                    Non-Assistance Cooperative Agreement
                                                                    (S)Accession Number: 443183Assessing Water Quality Trends in the TFCC Irrigation Project
                                                    Trust Fund Cooperative Agreement
                                                                    (T)Accession Number: 443399**Publications**
                                                (Clicking on the reprint icon
                                                    Reprint Icon
                                                    will take you to the publication reprint.)Spatial distribution of ammonia concentrations and modelled dry deposition in an intensive dairy production region
                                                        

- (Peer Reviewed Journal)Leytem, A.B., Walker, J.T., Wu, Z., Nouwakpo, S.K., Baublitz, C., Bash, J., Beachley, G. 2023. Spatial distribution of ammonia concentrations and modelled dry deposition in an intensive dairy production region. Atmosphere. 15(1):1-23. https://doi.org/10.3390/atmos15010015.Estimating effective hydraulic conductivity (Ke) for the Rangeland Hydrology and Erosion Model (RHEM)
                                                        

- (Peer Reviewed Journal)Al-Hamdan, O., Williams, C.J., Pierson Jr, F.B., Hernandez, M., Nouwakpo, S.K. 2024. Estimating effective hydraulic conductivity (Ke) for the Rangeland Hydrology and Erosion Model (RHEM). Journal of the ASABE. 67(1):141-149.   https://doi.org/10.13031/ja.15652.Climate change in a semi-arid environment: effects on crop rotation with dairy manure application
                                                        

- (Peer Reviewed Journal)Koehn, A.C., Bjorneberg, D.L., Ma, L., Leytem, A.B., Malone, R.W., Nouwakpo, S.K., Qi, Z. 2024. Climate change in a semi-arid environment: effects on crop rotation with dairy manure application. Journal of the ASABE. 66(6):1449-1468. https://doi.org/https://doi.org/10.13031/ja.15661.Patterns and associations between dominant crop productions and water quality in an irrigated watershed
                                                        

- (Peer Reviewed Journal)Nouwakpo, S.K., Bjorneberg, D.L., Rogers, C.W. 2023. Patterns and associations between dominant crop productions and water quality in an irrigated watershed. Journal of Soil and Water Conservation. 78(6):466-478. . https://doi.org/10.2489/jswc.2023.00176.Phosphorus loss with surface irrigation

- (Other)Bjorneberg, D.L., Leytem, A.B., Nouwakpo, S.K., Reba, M.L. 2023. Phosphorus loss with surface irrigation. SERA-IEG 17 Bulletin.  https://sera17.wordpress.ncsu.edu/phosphorus-loss-with-surface-irrigationConnectivity of surface susceptibility and physical processes regulates hydrologic and erosional responses of water-limited lands

- (Abstract Only)Rangeland restoration in Jordan: Restoring vegetation cover by water harvesting measures
                                                        

- (Peer Reviewed Journal)Haddad, M., Strohmeier, S.M., Nouwakpo, S.K., Rimawi, O., Weltz, M.A., Sterk, G. 2022. Rangeland restoration in Jordan: Restoring vegetation cover by water harvesting measures. International Soil and Water Conservation Research. https://doi.org/10.1016/j.iswcr.2022.03.001.Introduction to the special issue “Ecohydrologic feedbacks between vegetation, soil, and climate”
                                                        

- (Peer Reviewed Journal)Williams, C.J., Nouwakpo, S.K. 2022. Introduction to the special issue “Ecohydrologic feedbacks between vegetation, soil, and climate”. Water. 14(5). Article 760. https://doi.org/10.3390/w14050760.Assessing runoff and erosion on woodland-encroached sagebrush steppe using the Rangeland Hydrology and Erosion Model
                                                        

- (Peer Reviewed Journal)Williams, C.J., Pierson Jr., F.B., Al-Hamdan, O., Nouwakpo, S.K., Johnson, J.C., Polyakov, V.O., Kormos, P., Shaff, S., Spaeth, K. 2022. Assessing runoff and erosion on woodland-encroached sagebrush steppe using the Rangeland Hydrology and Erosion Model. Ecosphere. 13(6). Article e4145. https://doi.org/10.1002/ecs2.4145.A global-scale assessment of water resources and vegetation cover dynamics in relation with the earth climate gradient
                                                        

- (Peer Reviewed Journal)Sohoulande Djebou, D.C., Awoye, H., Nouwakpo, S.K., Dogan, S., Szogi, A.A., Stone, K.C., Martin, J.H. 2022. A global-scale assessment of water resources and vegetation cover dynamics in relation with the earth climate gradient. Remote Sensing in Earth Systems Sciences. https://doi.org/10.1007/s41976-021-00063-0.A strategic plan for future USDA- Agricultural Research Service erosion research and model development
                                                        

- (Peer Reviewed Journal)Weltz, M.A., Huang, C., Newingham, B.A., Tatarko, J., Nouwakpo, S.K., Tsegaye, T.D. 2020. A strategic plan for future USDA- Agricultural Research Service erosion research and model development. Journal of Soil and Water Conservation. 75(6):137A-143A. https://doi.org/10.2489/jswc.2020.0805A.Long-term effectiveness of tree removal to re-establish sagebrush steppe vegetation and associated spatial patterns in surface conditions and soil hydrologic properties
                                                        

- (Peer Reviewed Journal)Williams, C.J., Johnson, J., Pierson Jr, F.B., Burleson, C., Polyakov, V.O., Kormos, P., Nouwakpo, S.K. 2020. Long-term effectiveness of tree removal to re-establish sagebrush steppe vegetation and associated spatial patterns in surface conditions and soil hydrologic properties. Water. 12(8). Article 2213. https://doi.org/10.3390/w12082213.Moving toward sustainable irrigation in a southern Idaho irrigation project
                                                        

- (Peer Reviewed Journal)Bjorneberg, D.L., Ippolito, J.A., King, B.A., Nouwakpo, S.K., Koehn, A.C. 2020. Moving toward sustainable irrigation in a southern Idaho irrigation project. Transactions of the ASABE. 63(5):1441-1449. https://doi.org/10.13031/trans.13955.Salts transport from a moderately saline-alkaline rangeland soil using rainfall simulation

- (Peer Reviewed Journal)Kentucky bluegrass invaded rangeland: ecosystem implications and adaptive management approaches
                                                        

- (Peer Reviewed Journal)Gasch, C.K., Toledo, D.N., Baldwin, C., Bendel, C., Fick, W., Gerhard, L., Harmon, J., Hendrickson, J.R., Hovick, T., Kral-O'Brien, K., Lakey, M., Nouwakpo, S.K., Sedivec, K. 2020. Kentucky bluegrass invaded rangeland: ecosystem implications and adaptive management approaches. Rangelands. 42:106-116. https://doi.org/10.1016/j.rala.2020.05.001.Mapping erosion risk for saline rangelands of the Mancos Shale using the rangeland hydrology erosion model
                                                        

- (Peer Reviewed Journal)Mcgwire, K., Weltz, M.A., Nouwakpo, S.K., Spaeth, K., Founds, M., Cadaret, E. 2020. Mapping erosion risk for saline rangelands of the Mancos Shale using the rangeland hydrology erosion model. Land Degradation and Development. 2020. 31:2552-2564. https://doi.org/10.1002/ldr.3620.Predicting micro-catchment infiltration dynamics
                                                        

- (Peer Reviewed Journal)Founds, M., McGwire, K., Weltz, M.A., Verburg, P.S. 2020. Predicting micro-catchment infiltration dynamics. Catena. 190. https://doi.org/10.1016/j.catena.Advancements from long-term research on woody plant encroachment in the western United States: the hydrology component of the Sagebrush Steppe Treatment Evaluation Project (SageSTEP)

- (Abstract Only)Williams, C.J., Pierson Jr, F.B., Kormos, P., Al-Hamdan, O., Nouwakpo, S.K., Polyakov, V.O., Johnson, J. 2020. Advancements from long-term research on woody plant encroachment in the western United States: the hydrology component of the Sagebrush Steppe Treatment Evaluation Project (SageSTEP). Presented at the European Geosciences Union, EGU General Assembly 2020, May 4-8, 2020, Vienna, Austria.  In EGU2020, Geophysical Research Abstracts, 22:12770.Salt balance of moderately saline-alkaline rangeland soil and runoff water quality from rainfall simulation studies near Moab, Utah U.S.A.
                                                        

- (Peer Reviewed Journal)Arslan, A., Weltz, M.A., Nouwakpo, S.K. 2020. Salt balance of moderately saline-alkaline rangeland soil and runoff water quality from rainfall simulation studies near Moab, Utah U.S.A. Journal of Geological Resource and Engineering. 8(1):1-19. https://doi.org/10.17265/2328-2193/2020.01.001.Effectiveness of prescribed fire to re-establish sagebrush steppe vegetation and ecohydrologic function on woodland-encroached sagebrush rangelands, Great Basin, USA: Part II: runoff and sediment transport at the patch scale
                                                        

- (Peer Reviewed Journal)Nouwakpo, S.K., Williams, C.J., Pierson Jr, F.B., Weltz, M.A., Arslan, A., Al-Hamdan, O. 2020. Effectiveness of prescribed fire to re-establish sagebrush steppe vegetation and ecohydrologic function on woodland-encroached sagebrush rangelands, Great Basin, USA: Part II: runoff and sediment transport at the patch scale. Catena. 185. https://doi.org/10.1016/j.catena.2019.104301.Chemical speciation in semiarid environments – a review
                                                        

- (Peer Reviewed Journal)Rossi, C.G., Heil, D., Weltz, M.A., Nouwakpo, S.K. 2019. Chemical speciation in semiarid environments – a review. Journal of Plant Research. 3(2):305-315. https://doi.org/10.26545/ajpr.2019.b00038x.Process-based modeling of upland erosion and salt load in the Upper Colorado River Basin

- (Proceedings)Runoff water quality from rainfall simulation on different salinity-alkalinity levels of rangeland plots

- (Proceedings)Modeling Infiltration In Constructed Micro-catchments

- (Proceedings)Effectiveness of prescribed fire to re-establish sagebrush steppe vegetation and ecohydrologic function on woodland-encroached sagebrush rangelands, Great Basin, USA: Part I: Vegetation, hydrology, and erosion responses
                                                        

- (Peer Reviewed Journal)Williams, C.J., Pierson, F.B., Nouwakpo, S., Al-Hamdan, O., Kormos, P.R., Weltz, M.A. 2018. Effectiveness of prescribed fire to re-establish sagebrush steppe vegetation and ecohydrologic function on woodland-encroached sagebrush rangelands, Great Basin, USA: Part I: Vegetation, hydrology, and erosion responses. Catena. https://doi.org/10.1016/j.catena.2018.02.027.


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