American Association of Geographers American Association of Geographers
2009 Annual Meeting, Las Vegas, NV Online Program
Paper Session:

4446 Human Impacts on Watershed Processes 1 - Geochemistry, Water Quality, and Ecological Processes

is scheduled on Wednesday, 3/25/09, from 1:00 PM - 2:40 PM in North Hall N107, Las Vegas Convention Center

Sponsorship(s):
Water Resources Specialty Group
Geomorphology Specialty Group
Mountain Geography Specialty Group

Organizer(s):
Shixiong Hu - Dept. of Geography, East Stroudsburg University of PA
Yong Q Tian - University of Massachusetts - Boston

Chair(s):
Shixiong Hu - Dept. of Geography, East Stroudsburg University of PA

Abstract(s):
 
1:00 PM   Author(s): *Erin C Hutchison - Missouri State University
Heather Hoggard, MS - Missouri State University
Robert T. Pavlowsky, Ph.D. - Missouri State University

 Abstract Title: Suspended Sediment and Dissolved Solid Transport in the James River, SW Missouri

1:20 PM   Author(s): *Ashok Kumar Ghosh - Dept. of Environment and Water MANAGEMENT,A.N.COLLEGE,PATNA,INDIA
Nupur Bose - Dept. of Geography,A.N.College,Patna,India
Hyunmin Han - University of Michigan, USA

 Abstract Title: Declining Water Quality In Perennial Streams: A Case Study Of Mid Ganga, India

1:40 PM   Author(s): *Yong Q Tian - University of Massachusetts - Boston
Robert F. Chen - University of Massachusetts at Boston
Qian Yu - University of Massachusetts at Amherst

 Abstract Title: Monitoring and assessing the carbon export from coastal watershed to ocean

2:00 PM   Author(s): *Stephen Taylor - Western Oregon University
Bryan E. Dutton - Western Oregon University

 Abstract Title: Invasive Plant Distribution in the Luckiamute River Basin, Central Oregon Coast Range: Preliminary Analysis of Geomorphic and Land-Use Variables




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) geochemistry, water quality, and ecological processes; (2) watershed restoration and management, and (3) Impacts of land use change on hydrological and geomorphic processes.
  

(54) 2009 Annual Meeting, Las Vegas, NV