Watershed Physical Processes Research Unit Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
Agricultural Research Service United States Department of Agriculture
Search
  Advanced Search
 
Programs and Projects
Subjects of Investigation
Revised Universal Soil Loss Equation 2 - Changes in 2010
Test
 

Research Project: INTEGRATED ASSESSMENT AND ANALYSIS OF PHYSICAL LANDSCAPE PROCESSES THAT IMPACT THE QUALITY AND MANAGEMENT OF AGRICULTURAL WATERSHEDS

Location: Watershed Physical Processes Research Unit

Title: Watershed management for erosion and sedimentation control Case Study: Goodwin Creek, Panola County, MS

Authors

Submitted to: Advances in Soil Science
Publication Type: Book / Chapter
Publication Acceptance Date: February 1, 2012
Publication Date: May 23, 2012
Citation: Dabney, S.M., Shields Jr, F.D., Bingner, R.L., Kuhnle, R.A., Rigby Jr, J.R. 2012. Watershed management for erosion and sedimentation control Case Study: Goodwin Creek, Panola County, MS. IN: Advances in Soil Science. Vol. 19: 539-556.

Interpretive Summary: The Goodwin Creek watershed is located in northern Mississippi. This manuscript combines a regional history of land management changes from the time of European settlement to present with a summary of research results obtained during the past 30 years. Conversion of forests to cropland caused a serious upland erosion problem. Excessive sedimentation of channels led to frequent flooding of floodplains. Channel straightening and dam construction to reduce flooding resulted in a channel system with increased sediment transport capacity. Improved conservation and reforestation of the uplands decreased the sediment load. The imbalance between channels with large sediment transport capacity and small sediment loads from the uplands created the situation found today where stream bank erosion of floodplains is the dominant source of sediment exported from the watershed. The Goodwin Creek experience demonstrates that piecemeal application of accepted best management practices can have unanticipated long term consequences and illustrates the challenges inherent in attempting to assess the impact of conservation practices at a watershed scale.

Technical Abstract: The Goodwin Creek watershed is located within the loessal hills of northern Mississippi, a region of high erosion risk and elevated watershed sediment yields. This manuscript combines a regional history of land management and conservation issues from the time of European settlement to present with a summary of research results obtained during the past 30 years. Goodwin provides an instructive case study of the dynamism of land use, hydrologic, geomorphologic, and water quality characteristics that change over time. Conversion of forests to cropland caused a serious upland erosion problem. Excessive sedimentation of channels led to frequent flooding of floodplains. Channel straightening and dam construction to reduce flooding resulted in a channel system with increased sediment transport capacity. Improved conservation and reforestation of the uplands decreased the sediment load. The imbalance between channels with large sediment transport capacity and small sediment loads from the uplands created the situation found today where stream bank erosion of floodplains is the dominant source of sediment exported from the watershed. The Goodwin Creek experience demonstrates how piecemeal application of accepted best management practices can have unanticipated long term consequences and illustrates the challenges inherent in attempting to assess the impact of conservation practices at a watershed scale.

   

 
Project Team
Bingner, Ronald - Ron
Kuhnle, Roger
Dabney, Seth
Wilson, Glenn
Wren, Daniel
Romkens, Mathias - Matt
Wells, Robert - Rob
Rigby, James - Jr
Langendoen, Eddy
 
Publications
   Publications
 
Related National Programs
  Water Availability and Water Management (211)
 
 
Last Modified: 05/23/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House