David DeWalle

• Professor Emeritus of Forest Hydrology
• 311 Forest Resources Building
• University Park
• (814) 865-3378
• (814) 865-3725 Fax
• drdewalle@psu.edu
•  
• Department faculty webpage

Keywords:

• Acid Precipitation / Atmospheric Deposition
• Bacteria source tracking
• Biogeochemistry
• Climate Change
• Global Change
• Hydrology
• Isotopes
• Microclimatology
• Nitrogen Cycling
• Snow Hydrology
• Urbanization Impacts
• Water Quality / Pollution
• Water Resources
• Watershed Management

Active Research Projects:

• Effectiveness of Fatty Acid Methyl Ester (FAME) Profiling to Determine Sources of Microbial Pollution in Chester Creek Watershed
• Impact of Changing Atmospheric Emissions Policies on Stream Chemistry in the Northern Appalachian Plateau III
• Improved Quantification of Stream-Aquifer Interactions for Tracking Nitrate Transport Along a River Continuium: Implemention of a Cost-effective Distributed Temperature Sensing Technology
• The Effect of Oxygen Availability on Fe Cycling Microbial Communities Within an Acid Mine Drainage-induced Kill Zone
• Web-based Learning for Private Water Systems Owners

Completed Research Projects:

• 11th Annual Symposium of Water-Rock Interaction
• 2001 Water Resources Research Center Annual Base Program
• 2002 Water Resources Research Center Annual Base Program
• 2004 Water Resources Research Center Annual Base Program
• 2005 Water Resources Research Center Annual Base Program
• 2006 Water Resources Research Center Annual Base Program
• An Evaluation of the Effectiveness of Different Limestone Sand Application Models in the Treatment of Acidic Waters
• Delaware River Basin Commission - State of the Basin Report Card
• Effects of Watershed Acidification on Dendrochemistry and Growth of Selected Tree Species in West Virginia
• Fatty acid methyl ester (FAME) profiles of Escherichia Coli and Enterococci for predicting sources of microbial pollution (Villanova subaward)
• Impact of Changing Atmospheric Emissions Policies on Stream Chemistry in the Northern Appalachian Plateau
• Influence of Forest Roads and Timber Harvesting on Non-Perennial Channel Characteristics in the Allegheny Mountain Ecoregion
• Nitrate Source Tracking Combining Isotopic, Microbial, and Chemical Tracers in a Mixed Land Use Watershed
• Schrader Creek Water Quality Survey
• Source Water Protection from Infectious Cryptosporidium ssp..Oocysts