题  目：Soil Erosion and Sediment Studies at the Walnut Gulch Experimental Watershed, Arizona

报告人：Dr. Mark A. Nearing

时  间：2013年09月17日（星期二）下午2：00

地  点：水院楼304

联系人：雷廷武教授

联系电话：62736367

报告人简介：

　　Dr. Mark A. Nearing, a soil scientist who heads the ARS Southwest Watershed Research Center in Tucson, has a Ph.D. in Civil Engineering (1986), an M.S. in Soil Science (1984) from Purdue University and a B.S. (1982) in Geology from Indiana University. He has worked as a scientist for the Agricultural Research Service since 1986.

　　Mark has worked as a scientist for the Agricultural Research Service since 1986. West Lafayette. Most of Dr. Nearing' s work has been in the area of soil erosion and conservation. Mark was a technical director for the WEPP project from 1993 to 1995, led the validation efforts. His research was the Rangeland Hydrology and Erosion Model.

　　2002-2003, Mark served one year as Acting Research Leader of the ARS Watershed Research Center, Coshocton, OH (2002).

　　2003- now, Southwest Watershed Research Centre, Arizona. Research Leader.

　　Most of Mark A Nearing’ s research has been in the area of soil erosion research, including understanding basic erosion processes, field measurement techniques, computer simulation modeling, and impacts of global climate change on erosion and conservation. Mark is Past President of the International Soil Conservation Organization and continues to serve on its board of Directors. He serves on the Board of Directors of the Soil Erosion Network, and is Editor in Chief of CATENA, an interdisciplinary journal of soil science, hydrology, and geomorphology. In 1990, Mark was a member of a group receiving a USDA Superior Service Award for the Water Erosion Prediction Project. Mark’s work has become internationally known and in 1992 he served as a key member of a USDA-ARS Bioproducts and Technology Transfer Team that visited Russia and the Ukraine, and in 1993 he organized an International Soil Erosion Workshop in Moscow. Mark currently is researching the natural variability of soil erosion measurements and its implications for model evaluation, effects of climate change on soil erosion rates, erosion model uncertainty, spatial variability of erosion on landscapes using tracers, the fundamental mechanics of rill erosion, and the evolution of rill networks.

　　Mark has authored more than 200 scientific papers, including more than 90 refereed scientific journal articles.

学术成果：

　　1. Scales and Erosion. Cerdà, A., Brazier, R., Nearing, M.A., De Vente, J. 2013. Scales and Erosion. Catena. 102: 1-2.

　　2. A sediment budget for a small semiarid watershed in southeastern Arizona, USA - (Peer Reviewed Journal). Nichols, M.H., Nearing, M.A., Polyakov, V.O., Stone, J.J. 2012. A sediment budget for a small semiarid watershed in southeastern Arizona, USA. Geomorphology. 180-181: 137-145.

　　3. Concentrated flow erodibility for physically-based erosion models: temporal variability in disturbed and undisturbed rangelands. Al-Hamdan, O.Z., Pierson Jr, F.B., Nearing, M.A., Williams, C.J., Stone, J.J., Kormos, P.R., Boll, J., Weltz, M.A. 2012. Concentrated flow erodibility for physically-based erosion models: temporal variability in disturbed and undisturbed rangelands. Water Resources Research. DOI: 10.1029/2011WR011464.

　　4. On the effects of improved cross-section representation in one dimensional flow routing models applied to ephemeral rivers. Hutton, C., Brazier, R., Nicholas, A., Nearing, M.A. 2012. On the effects of improved cross-section representation in one dimensional flow routing models applied to ephemeral rivers. Water Resources Research. 48: 1-11.

　　5.Effects of antecedent soil moisture on runoff modeling in small semiarid watersheds of southeastern Arizona 2104). Zhang, Y., Nearing, M.A., Wei, H. 2011. Effects of antecedent soil moisture on runoff modeling in small semiarid watersheds of southeastern Arizona. Hydrol. Earth Syst. Sci., 15: 3171–3179

　　6. Estimating concentrated flow erodibility parameters from pre- and post-fire rangeland field data for physically-based erosion modeling.Al-Hamdan, O.Z., Pierson, F.B., Williams, C.J., Nearing, M., Stone, J., Kormos, P.R., Boll, J., and Weltz, M.A. 2011. Estimating concentrated flow erodibility parameters from pre- and post-fire rangeland field data for physically-based erosion modeling. Abstract H31B-1141. Presented at the 2011 Fall Meeting of the American Geophysical Union, December 5-9, 2011, San Francisco, CA.

　　7. Techniques for assessing the environmental outcomes of conservation practices applied to rangeland watersheds. Weltz, M.A., Jolley, L., Goodrich, D., Boykin, K., Nearing, M., Stone, J., Guertin, P., Hernandez, M., Spaeth, K., Pierson, F., Morris, C., Kepner, B. 2011. Techniques for assessing the environmental outcomes of conservation practices applied to rangeland watersheds. Journal of Soil and Water Conservation. 66(5):154A-162A.

　　8. Characteristics of concentrated flow hydraulics for rangeland ecosystems: implications for hydrologic modeling. Osama, A.Z., Pierson Jr, F.B., Nearing, M.A., Stone, J.J., Williams, C.J., Moffet, C.A., Kormos, P.R., Boll, J., Weltz, M.A. 2012. Characteristics of concentrated flow hydraulics for rangeland ecosystems: Implications for hydrologic modeling. Earth Surface Processes and Landforms. 37(2):157-168.

　　9. Modeling climate change effects on runoff and soil erosion in southeastern Arizona rangelands and implications for mitigation with rangeland conservation practices. Zhang, Y., Hernandez, M., Anson, E.L., Nearing, M.A., Wei, H., Stone, J.J., Heilman, P. 2012. Modeling climate change effects on runoff and soil erosion in southeastern Arizona rangelands and implications for mitigation with rangeland conservation practices. Journal of Soil and Water Conservation. 67(5): 390-405.

　　10. AGWA: The Automated Geospatial Watershed Assessment Tool to inform rangeland management. Goodrich, D.C., Guertin, D.P., Burns, I.S., Nearing, M.A., Stone, J.J., Wei, H., Heilman, P., Hernandez, M., Spaeth, K., Pierson Jr, F.B., Paige, G.B., Miler, S.N., Kepner, W., Mcclaran, M.P., Weltz, M.A., Jolley, L. 2011. AGWA: The Automated Geospatial Watershed Assessment Tool to inform rangeland management. Rangelands. 33(4):41-47.

　　11. Shear stress partitioning of overland flow on disturbed and undisturbed rangelands. Al-Hamdan, O.Z., Pierson, F.B., Nearing, M.A., Stone, J.J., Williams, C.J., Kormos, P.R., Boll, J., and Weltz, M.A. (2011) “Shear Stress Partitioning of Overland Flow on Disturbed and Undisturbed Rangelands”, in Proceedings of the International Symposium on Erosion and Landscape Evolution, Anchorage, Alaska, USA, American Society of Agricultural and Biological Engineers and Association of Environmental and Engineering Geologist, Edited by Flanagan, D.C., Ascough II, J.C., and Nieber J.L., Paper # 11134.

　　12. Sediment source identification in a semiarid watershed at soil mapping unit scales. Rhoton, F.E., Emmerich, W.E., McChesney, D.S., Nearing, M.A., Ritchie, J.C. 2011. Sediment source identification in a semiarid watershed at soil mapping unit scales. Catena. 87:172-181.

　　13. Conservation Practices to Mitigate and Adapt to Climate Change. Poster Demonstration. Delgado, J.A., Groffman, P., Nearing, M.A., Goddard, T., Reicosky, D., Lal, R., Kitchen, N.R., Rice, C., Towery, D. 2011. Conservation Practices to Mitigate and Adapt to Climate Change. Poster Demonstration. Soil Science Society of America Annual Meeting. p. 1.

　　14. Conservation practices to mitigate and adapt to the effects of climate change. Delgado, J.A., Secchi, S., Groffman, P., Nearing, M.A., Goddard, T., Reicocky, D., Lal, R., Salon, P., Kitchen, N.R., Rice, C., Towery, D. 2011. Conservation practices to mitigate and adapt to the effects of climate change. Journal of Soil and Water Conservation Society. 66(a):118A-129A.

　　15. A rangeland hydrology and erosion model. Nearing, M.A., Wei, H., Stone, J.J., Pierson, Jr. F.B., Spaeth, K., Weltz, M.A., Flanagan, D.C., Hernandez, M. 2011. A rangeland hydrology and erosion model. Transactions of the ASABE. 54(3):1-8.

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2013年09月12日