US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Ge Sun

Ge Sun

Research Hydrologist
P.O. Box 12254
3041 East Cornwallis Road
Research Triangle Park
North Carolina
United States

Phone: 919-549-4070
Fax: 919-513-2978
Contact Ge Sun

Current Research

Current Projects:

  • Modeling the potential effects of climate change, landuse change, population growth, urbanization on water supply and demand in the Conterminous United States (CONUS)
  • Evaluating the effectiveness of forest buffers on water quality and flow generations in the Piedmont region of North Carolina
  • Wildfire and Fuel Treatment Strategy Effects on Water Quantity across the Conterminous United States
  • Measuring and modeling carbon and water flux dynamics and processes across a climatic and management gradients
  • Hydrological effects of longleaf pine restoration in the southern U.S.

Research Interests

  • Effects of climate change and land management on water quantity and quality
  • Application of computer simulation models, GIS, and remote sensing in regional hydrology
  • Impacts of global change on water supply and demand
  • Forestry Best Management practices in affecting and soil erosion and sediment transport in watersheds.
  • Hydrology of forested wetland ecosystems
  • Impact of wildland fire on watershed hydrology
  • Evapotranspiration and ecosystem productivity modeling  
  • Effects of urbanization on watershed hydrology and climate  

Why This Research is Important

Water is the most fundamental component of life. Forests and water are intimately linked at multiple scales. Global changes in climate and land use have profound impacts on the quantity, quality, and timing of water on Earth. Understanding how forest-water-climate-people interactions is critical for sustainable management and conservation of natural resources, and adaptation to environmental change in the 21st century.


  • University of Florida, Ph.D. Forest Hydrology and Watershed Management 1995

Awards & Recognition

  • US Forest Service Research & Development Deputy Chief Award's Distingushed Science Award , 2017
    Sustained productivity and leadership in forest hydrology research
  • US Forest Service Chief's Honor Award , 2017
    Applying Knowledge Globally; Forests and Water in a Changing Environment
  • Source Water Protection Award (Team Award) from North Carolina Source Water Collaborative , 2017
    for Defining and Understanding How Forests Protect Watersheds and Source Water.
  • Southern Research Station Director's Distinguished Science Award , 2016
    Leadership and productivity in forest hydrology research
  • Certificate of Appreciation, 2016
    An author of "Understanding the Impacts of Drought on the Nation's Forest and Grasslands: Providing a Scientific Foundation for Effective Management Responses", which Received a 2016 Chief's Award for the Category of Sustaining Forests and Grasslands
  • Fellow of American Water Resources Association, 2015
  • USFS Southern Research Station Director's Global Stewardship Award , 2009

Featured Publications & Products


Research Highlights


Burning forests can impact water supplies

The number of wildland fires and burned areas in the U.S. is on the rise as a result of a warming climate, drought, and increasing human ignitio ...


Climate Change Impacts on Ecosystem Services: water, carbon, and biodiversity

SRS is enhancing one of its models that examines the potential impacts of climate change, land use, and population changes on water supplies. Th ...


Fertilized Pines Use Water More Efficiently But May Suffer Worse in Droughts

Fertilized loblolly pine trees produce more wood than their unfertilized counterparts, even when less water was available, butthis may also indi ...


High Forest Productivity Often Comes at the Expense of Soil Carbon Storage

Forest Service scientists and their research partners are studying the role of managed forests in regional carbon, water, and energy exchange to ...


Impacts of wildland fires on U.S. freshwater resources are variable

Burning forests alters watershed hydrological cycles by modifying soil and forest cover properties. Researchers found that fires with moderate ...


International collaborators develop easy-to-use formulas for water and carbon accounting

Ecosystem water use is closely coupled with ecosystem productivity, water availability, and water supplies, but accurate water use accounting re ...


Southern forested wetlands are projected to become drier in the future

Extensive southern forested wetlands provide important ecosystem services. A study of five typical forested wetlands across the Southeast sugges ...


Tools to help international conservation agencies make sound decisions

Researchers with the Eastern Forest Environmental Threat Assessment Center (EFETAC) applied models they developed with partners to measure water ...


Last updated on : 07/01/2020