（土地利用和土地覆被变化对水文过程影响的评价）

 

主讲人：Dr. Yongping Yuan （美国环保署水文学家）

时  间：2013年6月26日15:00

地  点：304永利登录入口水院楼304

主办者：农业节水与水资源教育部工程研究中心

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内容简介：

The assessment of Landuse and Landcover (LULC) changes on hydrology is essential for the development of sustainable water resource strategies. Specifically, understanding how change in each LULC class influences hydrological components will greatly improve predictability of hydrological consequences to LULC changes and thus can help stakeholders make better decisions. However, given the limited availability of digital LULC maps and simultaneous changes of multiple LULC classes, it is difficult to quantify impacts of change in individual LULC class on hydrology. In this study, an integrated approach of hydrological modeling and multiple regression analysis was applied to quantify contributions of changes for individual LULC classes on changes in hydrological components. As a case study, hydrological modeling was conducted for each of the LULC map in four time periods (1973, 1986, 1992, and 1997) in the upper San Pedro watershed using the Soil and Water Assessment Tool (SWAT). Changes in hydrological components between two simulations using LULC maps in 1997 and 1973, respectively, were related to changes of LULC in a multiple regression to quantify the effect of changes in LULC to that of hydrological components at the subbasinal scale. While urbanization was the strongest contributor to the increase of surface runoff and water yield from 1973 to 1997, replacement of desertscrub/grassland by mesquite was the strongest contributor to the decreased baseflow/percolation and contributed to the increased ET. Increased runoff, declined percolation, and increased ET have a negative impact on water resources in the upper San Pedro River Basin, thus urbanization and mesquite invasion seems to be major environmental stressors affecting local water resources. Our approach in quantifying the contributions of changes for individual LULC to hydrological components will provide quantitative information for stakeholders in planning and making decisions for land and water resource management. The approach to assess changes in surface hydrology could widely be applied to a variety of other watersheds, where time-sequenced digital LULC is available.

 

Dr. Yongping Yuan简介

Education and Employment:

Dr. Yuan is a hydrologist of US Environment Protection Agency (USEPA). Before she worked in USEPA, she was an Agricultural Engineer of USDA-Agriculture Research Service (USDA-ARS). Dr. Yuan did her postdoctoral research at National Sedimentation Laboratory of USDA-ARS. She received her Ph.D. degree in Agricultural Engineering from the University of Illinois at Urbana-Champaign (UIUC) in 1999. She received her BS and MS degrees in Water Conservation and Civil Engineering in 1989 and 1994, respectively, from China Agricultural University. Before going to the United States, Dr. Yuan has worked in China Agricultural University as an assistant professor.

Research Area:

Dr. Yuan’s research interests are in the area of watershed hydrology and water quality processes with emphasis on developing and using GIS and watershed modeling tools to improve understanding of terrestrial and aquatic water quality processes; Impact of conservation practices for nonpoint source pollution control; Sustainability of biofuel production and its impact on water quality and ecosystem services; Impact of land use and climate change on water quantity and quality, and sustainability assessment of built environments.

Societies :

Dr. Yuan is an editor for the Open Journal of Forestry, Journal of Environmental Quality, Journal of Soil and Water Conservation, Journal of American Water Resource Association, Transactions of the ASABE, Hydrological Processes, International Journal of Sediment Research, Ecological Modeling, Journal of Irrigation and Drainage, Frontiers of Environmental Science and Engineering in China, Environmental Management, Environmental Monitoring and Assessment; Dr. Yuan is also a member of American Society of Agricultural and Biological Engineers (ASABE), and American Water Resource Association (AWRA).

Honors and Awards:

•Regional Applied Research Effort: “Nutrients characterization of digester effluents” was awarded by EPA – ORD. Award amount: $100,000, FY2013

•Outstanding performance in EPA-NAGE performance appraisal, 2012.

•Regional Applied Research Effort: “Achieving Long-Term Protection of Water Quality of Grand Lake St. Marys through the Control of Phosphorus Input from Agricultural Drainage” was awarded by EPA – ORD. Award amount: $200,000, FY2011.

•Outstanding performance in EPA-NAGE performance appraisal, 2012.

•Outstanding performance in EPA-NAGE performance appraisal, 2011.

•Superior Accomplishment Recognition Award from EPA - ORD on the Future Midwest Landscape study, 2011.

•Group award from EPA-ORD on Ecosystem Service Research Project, 2011, 2010 and 2009.

•Spain Ministry of Education, “Master Oficial de Hidraúlica Ambiental (Master Official Environmental Hydraulics)” Fellowship, $7,000 to perform technology transfer in Spain, May 29 to June 14, 2010.

•Invited and paid by Chinese Academy of Sciences to present an AnnAGNPS workshop to the scientists and graduate students at the Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chendu, P. R. China. September 25-29, 2006.

•Invited and paid by the Huazhong Agricultural University to present an AnnAGNPS workshop to the professors and graduate students at the Hongzhong Agricultural University. Wuhan, P. R. China. September 18-22, 2006.

•Invited and paid by China Ministry of Water Resource to perform AnnAGNPS workshop and training in China, April 16 to May 1, 2005.

•Innovative research on determination of actual and reference sediment yields for the James Creek Watershed-Mississippi, from Mississippi Department of Environmental Quality, 2004 

Published papers in recent 10 years：

1.Yuan, Y., R. L. Bingner, and R. A. Rebich.  2003.  Evaluation of AnnAGNPS Nitrogen Loading in an Agricultural Watershed.  Journal of AWRA 39(2): 457-466.

2.Yuan, Y., R. L. Bingner, F. D. Theurer, R. A. Rebich, and P. A. Moore.  2005.  Phosphorus Component in AnnAGNPS.  Transactions of the ASAE 48(6): 2145-2154

3.Yuan, Y., R. L. Bingner, and F. D. Theurer.  2006.  Subsurface Flow Component for AnnAGNPS.  Applied Engineering in Agriculture 22(2): 231-241. 

4.Yuan, Y., R. L. Bingner, J. Boydstun.  2006.  Development of TMDL Watershed Implementation Plan using Annualized AGNPS.  Land Use and Water Resources Research 6: 2.1-2.8.

5.Yuan, Y., R. L. Bingner, R. Williams, R. Lowrance, D. Bosch, and J. Sheridan.  2007.   Integration of the Models of AnnAGNPS and REMM to Assess Riparian Buffer System for Sediment Reduction.  International Journal of Sediment Research 22(1): 60-69.

6.Yuan, Y., R. L. Bingner, F. D. Theurer, and S. Kolian.  2007.  Water Quality Simulation of Rice/Crawfish within Annualized AGNPS.  Applied Engineering in Agriculture 23(5): 585-595.

7.Bingner, R. L. and Y. Yuan.  2008.  US-China collaboration on conservation.  Journal of Soil and Water Conservation 63(1): 22A-23A.

8.Yuan, Y., M. A. Locke, and R. L. Bingner.  2008.  AnnAGNPS model application for Mississippi Delta Beasley Lake Watershed conservation practices assessment.  Journal of Soil and Water Conservation 63(6):  542-551.

9.Yuan, Y., M. A. Locke, and L. A. Gaston.  2009.  Tillage Effects on Soil Properties and Spatial Variability in two Mississippi Delta Watersheds.  Soil Science 174(7): 385-394.  doi: 10.1097/SS.0b013e3181ac679c. 

10.Yuan, Y., R. L. Bingner, and M. A. Locke.  2009.  A review of effectiveness of vegetative buffers on sediment trapping in agricultural areas.  Ecohydrology 2: 321-336.  DOI: 10.1002/eco.82 

11.Yuan, Y., M. H. Mehaffey, R. Lopez, R. L. Bingner, R. Bruins, C. Erickson, M. A. Jackson.  2011.  AnnAGNPS Model Application for Nitrogen Loading Assessment for the Future Midwest Landscape Study. Water 3; 196-216; doi:10.3390/w3010196.

12.Yuan, Y., R. L. Bingner, M. A. Locke, F. D. Theurer, J. Stafford. 2011. Assessment of subsurface drainage management practices to reduce nitrogen loadings using AnnAGNPS. Applied Engineering in Agriculture 27(3): 335-344.

13.Yuan, Y., R. L. Bingner, M. A. Locke, J. Stafford, F. D. Theurer. 2011. Assessing the long term impact of phosphorus fertilization on phosphorus loadings using AnnAGNPS. International Journal of Environmental Research and Public Health 8(6): 2181-2199.

14.Nie, W., Y. Yuan, W. Kepner, M. S. Nash, M. A. Jackson, and C. Erickson. 2011. Assessing Impacts of Landuse and Landcover Changes on Hydrology for the Upper San Pedro Watershed.  Journal of Hydrology 407(1-4): 105-114.

15.Taguas, E.V, Y. Yuan, R. Bingner, and J.A. Gómez.  2012. Modelling the Contribution of Ephemeral Gully Erosion under Different Soil Management: a case study in an olive orchard microcatchment using the AnnAGNPS model.  Catena 98: 1-16.

16.Qaiser, K., Y. Yuan, and R. Lopez. 2012. Urbanization Impacts on Flooding in the

17.Yuan, Y., W. Nie and S. McCutcheon. 2012. Initial Abstraction and Curve Numbers in a Semiarid Watershed in Southeastern Arizona. Hydrological Processes, DOI: 10.1002/hyp.9592.

18.Yuan, Y., M. A. Locke, R. L. Bingner, R. A. Rebich. 2013. Phosphorus Losses from Agricultural Watersheds in the Mississippi Delta.  Journal of Environmental Management 115: 14-20.