JERRY C. RITCHIE

Ecologist/Soil Scientist

Mailing Address: (Directions to Hydrology and Remote Sensing Laboratory)
United States Department of Agriculture
Agricultural Research Service
Beltsville Agricultural Research Center
Animal and Natural Resources Institute
Hydrology and Remote Sensing Laboratory
BARC-West Building 007
10300 Baltimore Avenue
Beltsville, Maryland 20705 USA

Phone: 1-301-504-7490
Fax: 1-301-504-8931
email: jritchie@hydrolab.arsusda.gov

EDUCATION:
B.A. in Biology from Pfeiffer University, Misenheimer, North Carolina, 1960
M.S. in Botany/Soils from University of Tennessee, Knoxville, Tennessee, 1962, emphasis Radioecology
Ph.D. in Botany from University of Georgia, Athens,Georgia, 1967, emphasis Ecology

PROFESSIONAL EXPERIENCES:
05/62-10/62, Research Associate, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
10/62-09/64, Biological Research Specialist, Medical Research Laboratory, U.S. Army Biological Research Division, Edgewood Arsenal, Maryland
09/64-06/67, Graduate Research Fellow University of Georgia, Athens, Georgia
06/67-10/68, Post-Doctoral Fellow in Plant and Soil Sciences, USDA-ARS, Southeast Watershed Research Laboratory and the University of Georgia, Little River Hydrologic Study Team, Tifton, Georgia
10/68-01/78, Botanist/Soil Scientist, National Sedimentation Laboratory, USDA-ARS, Oxford, Mississippi
01/78-04/83, Staff Scientist, ARS National Program Staff, USDA-ARS, Beltsville, Maryland
04/83-08/93, Ecologist/Soil Scientist, Hydrology Laboratory, USDA-ARS, Beltsville, Maryland
09/93-10/95, Acting Research Leader, Systems Research Laboratory, USDA-ARS, Beltsville, Maryland
11/95-present, Ecologist/Soil Scientist, Hydrology and Remote Sensing Laboratory, USDA-ARS, Beltsville, Maryland

RESEARCH INTERESTS
Application of laser altimetry to measure landscape surface properties
Airborne laser technology for measuring rangeland conditions
Application of spectral remote sensing to monitor water quality
Application of radioactivity (Cesium-137) to measure soil erosion and sedimentation
Use of grass hedges and buffer strips to control soil movement
Eastern Gamagrass for Forage, Soil Improvement, and Buffer Strips

BIBLIOGRAPIES
Bibliography of publication related to Cesium-137 and erosion and sedimentation
Bibliography of publications related to warm season grasses and grasses as filters and hedges to control erosion
Publications by Jerry C. Ritchie

Selected Publications of Jerry C. Ritchie (2000-present)

Ritchie, J.C. and P.E. Rasmussen. 2000. Application of Cesium-137 to estimate erosion rates for understanding soil carbon loss on long-term experiments at Pendleton, Oregon. Land Degradation and Development 11(1):75-81.

Ritchie, J.C. 2000. Soil Erosion, pp. 271-286, 349-350. In: G.A. Schultz and E.T. Engman (eds.), Remote Sensing in Hydrology and Water Management, Springer-Verlag, Berlin, Germany.

Ritchie, J.C. and F.R. Schiebe 2000. Water Quality, pp. 287-303, 351-352. In: G.A. Schultz and E.T. Engman (eds.), Remote Sensing in Hydrology and Water Management, Springer-Verlag, Berlin, Germany.

Havstad, K.M., W.P. Kustas, A. Rango, J.C. Ritchie, and T.J. Schmugge. 2000. Jornada experimental Range: A unique arid land location for experimentals to validate satellite systems and to understand climate change. Remote Sensng of Environment 74:13-25.

Rango, A., M.Chopping, J.C. Ritchie, K. Havstad, W. Kustas, and T. Schmugge. 2000. Morphological characteristics of shrub coppice dunes in desert grasslands of siuthern New Mexico derived from scanning lidar. Remote Sensing of Environment 74:26-44.

Ritchie, J.C. 2000. Combining Cesium-137 and topographic surveys for measuring soil erosion/deposition pattern in a rapidly accreting area. Acta Geologica Hispanica 35(3-4):207-212.

Ritchie, J.C. 2001. Cesium-137 for measuring soil erosion and redeposition: Applications for understanding soil carbon, pp. 403-415. In: R. Lal, J.M. Kimble, R.F. Follett, and B.A. Stewart (Editor), Assessment Methods for Soil Carbon, Lewis Publishers, Boca Raton, FL.

Ritchie, J.C., M.S. Seyfried, M.J. Chopping, and Y. Pachepsky. 2001. Airborne laser technology for measuring rangeland conditions. Journal of Range Management 54(2):A8-A21.

Ritchie, J.C. and C.M. Cooper. 2001. Remote sensing of water quality: Application to TMDL, pp. 367-375. In: TMDL Science Issues Conference, Water Environment Federation, Alexandria, VA.

Ritchie, J.C. and G.W. McCarty. 2001. Sediment deposition rates and carbon content in the soils and sediments of an agricultural riparian ecosystem. Seventh Federal Interagency Sedimentation Conference Proceedings Vol 2: IX41-IX46.

Ritchie, J.C., T. Schmugge, A. Rango, F.R. Schiebe, and W. Kustas. 2001. Monitoring physical and biological properties at the Sevilleta LTER using remote sensing, pp. 234-238. In: Owe, M., K. Brubaker, J. Ritchie, and A. Rango (Editors), Remote Sensing and Hydrology 2000, International Association of Hydrological Sciences Publication No. 267, International Association of Hydrolocical Sciences Press, Wallingford, United Kingdom.

Schmugge, T., A. French, J.C. Ritchie, A. Rango, and H. Pelgrum. 2002. Temperature and emissivity separation from multispectral thermal infrared observations. Remote Sensing of Environment 79(1/2):189-198.

McCarty, G.W. and Ritchie, J.C. 2002. Impact of soil movement on carbon sequestration in agricultural ecosystems. Enviromental Pollution 116(3):423-430.

Ritchie, J.C. and McCarty, G.W. 2003. Using Cs-137 to understand soil carbon redistribution on agricultural watersheds. Soil and Tillage Research 69(1-2):45-51.

Ritchie, J.C., Walling, D.E., and Peters, J. 2003. Application of geographic information systems and remote sensing for quantifying patterns of erosion and water quality. Hydrological Processes 17(5):885-886.

Krizek, D.T., Ritchie, J.C., Sadeghi, A.M., Foy, C.D., Rhoden, E.G., Davis, J.R., and Camp, M.J. 2003. A four-year study of yields of eastern gamagrass grown on an acid compact soil. Communications in Soil Science and Plant Analysis 34(3/4):457-480.

Pinter, P.J. Jr., Ritchie, J.C., Hatfiled, J.L., and Hart, G.L. 2003. The Agricultural Research Service's Remote Sensing Program: An example of Interagency Collaboration. Photogrammetric Engineering and Remote Sensing 69(6):631-646.

Ritchie, J.C., Zimba, P.V., and Everitt, J.H. 2003. Remote sening techniques to assess water quality. Photogrammetric Engineering and Remote Sensing 69(6):695-7004.

Rawls, W.J., Pachepsky, Y.A., Ritchie, J.C., Sobecki, T.M., and Bloodwort, H. 2003. Effects of soil organic matter on soil water retention. Geoderma 116(1):61-76.

Ritchie, J.C., Herrick, J.E., and Ritchie, C.A. Variability in soil redistribution in the northern Chihuahuan desert based on Cs-137 measurements. Journal of Arid Environments 55(4):737-746, 2003.

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