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Special Sessions
Sponsored by the Geomorphology Specialty Group
Association of American Geographers 103rd Annual Meeting
San Francisco, California, April 17-21.

Human Impacts on Watershed Processes 3 - Watershed Management

Paper Session 4301
Friday, 4/20/07, from 12:00 PM - 1:40 PM


Geomorphology Specialty Group
Water Resources Specialty Group
Spatial Analysis and Modeling Specialty Group


Shixiong Hu - East Stroudsburg University
John Faustini - Oregon State University


William H. Renwick - Miami University


  • 12:00 AM Author(s):
    *Shuo-sheng Wu - U.S. Geological Survey
    Abstract Title: An Exploratory Analysis of the Resolution Effects on AGNPS Runoff Prediction.

  • 12:20 AM Author(s):
    *Alison Goss - Purdue University
    Laura Bowling - Purdue University
    Jon Harbor - University of Colorado at Denver
    Abstract Title: Assessing the Historical Impacts of Landscape Transformation on Water Fluxes, Muskegon River Watershed, MI.

  • 12:40 AM Author(s):
    *Martin Roberge - Towson University
    Angela Carlisle - Towson University
    Abstract Title: A Comparison of Four Methods for Measuring Impervious Surfaces.

  • 1:00 PM Author(s):
    *Geoffrey T. Klise - Sandia National Laboratories
    Carlos A. Aragon - New Mexico Institute of Mining and Technology
    Abstract Title: Using GIS and System Dynamics Software to Model how Changes in Land Use and Cover will affect Discharge in Ungauged Tributaries in the Gila and San Francisco Basins.

  • 1:20 PM Author(s):
    *Christopher Brown - New Mexico State University
    Quita Ortiz - New Mexico State University
    Abstract Title: The Impacts of Land Use Change on Water Resources and Traditional Acequia Culture in North Central New Mexico.

Session Description: Human impacts are pervasive across the modern landscape. Land use, resource extraction, and other human activities alter vegetation cover and species distributions; alter surface topography and disrupt soil layers; move large quantities of rock, soil and other materials; re-route surface and subsurface water flows; and directly or indirectly introduce large quantities of chemicals across the landscape, among other impacts. These many impacts affect key watershed processes even in relatively remote areas, altering the routing and delivery of water, sediment, organic matter, and dissolved chemicals to rivers and streams and in turn altering channel and floodplain morphology, aquatic habitat quality, and riparian ecosystem structure and function. Because humans depend upon watersheds for water supply, recreation, and many ecosystem services, understanding and management of human impacts on watershed processes is profoundly important to human societies. This series of sessions explores human impacts to hydrogeomorphic, biogeochemical, and ecological systems and processes in watersheds in a range of environments. Primary focus areas include (1) mountain watersheds; (2) geochemistry, water quality, and nutrients; (3) watershed management, particularly with respect to streamflow and fluvial processes in urbanizing landscapes; and (4) ecological impacts and processes.

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