Projects

INTEGRATED ASSESSMENT AND ANALYSIS OF PHYSICAL LANDSCAPE PROCESSES THAT IMPACT THE QUALITY AND MANAGEMENT OF AGRICULTURAL WATERSHEDS Appropriated (D)   Accession Number: 411058

DEVELOPMENT OF ACOUSTIC AND SEISMIC TECHNOLOGY TO CHARACTERIZE SOILS, SEDIMENT FLOW AND DEPOSITION, AND IMPOUNDMENT RESERVOIRS Appropriated (D)   Accession Number: 411908

TECHNOLOGIES FOR ASSESSING SEDIMENT MOVEMENT & THE INTEGRITY OF FLOOD CONTROL STRUCTURES, STREAMBANKS, & EARTHEN POND-LEVEES & EMBANKMENTS Appropriated (D)   Accession Number: 412288

PREDICTING THE IMPACT OF FLOOD CONTROL STRUCTURE FAILURES Appropriated (D)   Accession Number: 412269

UNDERSTANDING AND PREDICTING THE IMPACT OF AGRICULTURE ON THE ENVIRONMENTAL INTEGRITY OF MANAGED WATERSHEDS Appropriated (D)   Accession Number: 411542

TECHNICAL SUPPORT AND CLIMATE DATA EVALUATION OF RUSLE2 Reimbursable (R)   Accession Number: 407583

DEVELOPMENT OF ACOUSTIC & SEISMIC TECHNOLOGY TO CHARACTERIZE SOILS, ASSESS WATER CONTENT, & REDUCE PRODUCTION COSTS Specific Cooperative Agreement (S)   Accession Number: 409478

EXPERIMENTAL AND ANALYTICAL STUDIES OF SEDIMENT MOVEMENT IN SHALLOW OVERLAND FLOWS Specific Cooperative Agreement (S)   Accession Number: 411798

EROSION PROCESSES, CONTROL AND ASSESSMENT AT STEEP LOESS HILLSLOPES Specific Cooperative Agreement (S)   Accession Number: 408836

IMPROVING EROSION AND SEDIMENT TRANSPORT MODELS AND DEVELOPMENT IN SUPPORT OF USDA AGENCIES Specific Cooperative Agreement (S)   Accession Number: 412369

INFILTRATION INTO GYPSUM AMENDED SWELLING/SHRINKING/CRACKING SOILS Specific Cooperative Agreement (S)   Accession Number: 410551

PREDICTING AND VALIDATING RAIN INFILTRATION AND SUBSURFACE FLOW FOR "REAL WORLD" SOIL AND SLOPE CONDITIONS Specific Cooperative Agreement (S)   Accession Number: 406523

ACOUSTIC/SEISMIC TECHNOLOGY TO CHARACTERIZE SEDIMENT MOVEMENT AND DEPOSITION IN SURFACE WATERS AND EVALUATE DAM STRUCTURAL STABILITY Specific Cooperative Agreement (S)   Accession Number: 412440

Publications

Grain transport mechanics in shallow overland flow - (Proceedings/Symposium)

Prasad, S., Suryadevara, M., Romkens, M.J. 2008. Grain transport mechanics in shallow overland flow. National Sedimentaton Laboratory (NSL)- 50 Years of Soil & Water Research in a Changing Agricultural Environment. CD-ROM.

Model development for evaluating USDA Conservation practices - (Proceedings/Symposium)

Ascough, II, J.C., Romkens, M.J. 2008. Model development for evaluating USDA Conservation practices. Proceedings of the ASCE World Environmental and Water Resources Congress Conference. May 12-18,2008. Honolulu, HI. CD-ROM.

Measurements and analysis of sediment transport capacity in shallow overland flow - (Proceedings/Symposium)

Prasad, S., Suryadevara, M., Romkens, M.J. 2008. Measurements and analysis of sediment transport capacity in shallow overland flow. International Soil Conservation Organization Conference Proceedings. May 18-23, 2008, Budapest, Hungary. CD-ROM.

A discussion of assumptions and solution approaches of infiltration into a cracked soil - (Proceedings/Symposium)

Romkens, M.J., Prasad, S.N. 2007. A discussion of assumptions and solution approaches of infiltration into a cracked soil. Proceedings of the International Yellow River Forum. Vol. I:392-400.

Preferential Flow Through Discontinuous Soil-Pipes Results in Mass Wasting and Reestablishment of Ephemeral Gullies - (Peer Reviewed Journal)

Wilson, G.V., Cullum, R.F., Romkens, M.J. 2008. Preferential Flow Through a Discontinuous Soil-Pipes Results in Mass Wasting and Reestablishment of Ephemeral Gullies. Catena, 73: 98-106.

Land suitability assessment and land use change in Fujian Province, China - (Peer Reviewed Journal)

Quan, B., Zhu, H., Romkens, M.J. Land suitability assessment and land use change in Fujian Province, China. Pedosphere. 17(4):493-504. 2007

Post Saltation Sediment Transport by Shallow Super Critical Flows - (Proceedings/Symposium)

Rao, S.M., Prasad, S.N., Romkens, M.J. 2007. Post Saltation Sediment Transport by Shallow Super Critical Flows. International Symposium on River Sedimentation, Moscow, Russia, Aug. 1-4, 2007. CD-ROM

A SIMPLE TECHNIQUE FOR MEASURING WETTING FRONT DEPTHS FOR SELECTED SOILS - (Peer Reviewed Journal)

Wells, R.R., Romkens, M.J., Parlange, J., Dicarlo, D.A., Steenhuis, T.S., Prasad, S.N. 2007. A simple technique for measuring wetting front depths for selected soils. Soil Science Society of America Journal 71(3): 669-673.

Rain infiltration into swelling/shrinking/cracking soils - (Peer Reviewed Journal)

Romkens, M.J., Prasad, S. 2006. Rain infiltration into swelling/shrinking/cracking soils. Agricultural Water Management. 86:196-205.

SOIL DEFORMATION AND ITS SPECTRAL SIGNATURE - (Peer Reviewed Journal)

Wells, R.R., Prasad, S.N., Romkens, M.J. 2007. Soil deformation and its spectral signature. Earth Surface Processes and Landforms. 32(5):786-793.

PIPE FLOW IMPACTS ON EPHEMERAL GULLY EROSION - (Proceedings/Symposium)

Wilson, G.V., Cullum, R.F., Romkens, M.J. 2006. Pipe flow impacts on ephemeral gully erosion. Federal Interagency Sedimentation Conference Proceedings, April 2-6, 2006, Reno, Nevada. CDROM.

SPATIAL-TEMPORAL PATTERN AND DRIVING FORCES OF LAND USE CHANGES IN XIAMEN - (Peer Reviewed Journal)

Quan, B., Chen, J., Qui, H., Romkens, M.J., Yang, X., Li, B. 2006. Spatial-temporal pattern and driving forces of land use changes in Xiamen. Pedosphere. 16(4):477-488.

SEDIMENT TRANSPORT RESEARCH IN SHALLOW OVERLAND FLOW - (Proceedings/Symposium)

Romkens, M.J., Rao, S., Prasad, S. 2006. Sediment transport research in shallow overland flow. Federal Interagency Sedimentation Conference Proceedings, April 2-6, 2006, Reno, Nevada. CDROM.

SEDIMENT TRANSPORT RESEARCH IN SHALLOW OVERLAND FLOW: A PHENOMENOLOGICAL DESCRIPTION - (Abstract) - (09-Nov-05)

HYDROLOGICALLY DRIVEN MECHANISMS OF HEADCUT DEVELOPMENT - (Peer Reviewed Journal)

Romkens, M.J., Prasad, S. 2005. Hydrologically driven mechanisms of headcut development. International Journal of Sediment Research. 20(3):176-184.

EXPERIMENTAL OBSERVATIONS OF THE EFFECT OF PARTICLE INTERACTIONS ON THE TRANSPORT CAPACITY IN SHALLOW OVERLAND FLOW - (Proceedings/Symposium)

Prasad, S.N., Suryadevara, M.R., Romkens, M.J. 2005. Experimental observations of the effect of particle interactions on the transport capacity in shallow overland flow. Proceedings of the 2nd International Yellow River Forum, Zhengzhou, P. R. China, Oct. 16-21, 2005. II:351-361.

OPTICAL MEASUREMENTS OF GRAIN VELOCITY AND SEDIMENT CONCENTRATION IN SHALLOW UPLAND FLOWS - (Proceedings/Symposium)

Suryadevard, M.R., Prasad, S.N., Romkens, M.J. 2004. Optical measurements of grain velocity and sediment concentration in shallow upland flows. International Symposium on River Sedimentation. CD ROM

CONSERVATION EFFECTS ASSESSMENT PROJECT (CEAP) WATERSHED ASSESSMENT STUDIES: YALOBUSHA RIVER WATERSHED [ABSTRACT] - (Other)

Wilson, G.V., Rhoton, F.E., Romkens, M.J., Dicarlo, D.A., Dabney, S.M., Oldham, L., Cooper, C.M. 2004. Conservation Effects Assessment Project (CEAP) watershed assessment studies: Yalobusha River Watershed [abstract]. Agronomy Abstracts #3411.

SEDIMENT TRANSPORT CAPACITY OF SHALLOW FLOWS IN UPLAND AREAS - (Proceedings/Symposium)

Prasad, S., Rao, S., Romkens, M.J. 2004. Sediment transport capacity of shallow flows in upland areas. Paper 659. International Soil Conservation Organization Conference Proceedings. July, 2004. Brisbane, Queensland, Australia. CD-ROM.

THE CHANGING NATURE OF USDA AGRICULTURAL WATERSHED RESEARCH - (Proceedings/Symposium)

Romkens, M.J. 2004. The changing nature of USDA agricultural watershed research. International Hydro-Science & Engineering International Proceedings. (CD/ROM) May, 2004. Brisbane, Queensland, Australia. National Center for Hydroscience & Engineering.

MECHANICAL ENERGY AND SUBSURFACE HYDROLOGIC EFFECTS IN HEAD-CUT PROCESSES - (Proceedings/Symposium)

Prasad, S.N., Romkens, M.J. 2004. Mechanical energy and subsurface hydrologic effects in head-cut processes. International Symposium on Gully Erosion Under Global Change Proceedings. 109-120.

INFILTRATION AND SURFACE GEOMETRY FEATURES OF A SWELLING SOIL FOLLOWING SUCCESSIVE SIMULATED RAINSTORMS - (Peer Reviewed Journal)

Wells, R.R., Dicarlo, D.A., Steenhuis, T.S., Parlange, J., Romkens, M.J., Prasad, S.N. 2003. Infiltration and surface geometry features of a swelling soil following successive simulated rainstorms. Soil Science Society of America Journal. 67:1344-1351.

FERRIHYDRITE INFLUENCE ON INFILTRATION, RUNOFF AND SOIL LOSS - (Peer Reviewed Journal)

Soil Science Society of America Journal. 2003. V. 67, p. 1220-1226

ENERGY FORMULATIONS OF HEAD CUT DYNAMICS - (Peer Reviewed Journal)

PRASAD, S., ROMKENS, M.J. ENERGY FORMULATIONS OF HEAD CUT DYNAMICS. CATENA. 2003. Vol. 50, p. 469-487.