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      Biosphere Reserve Information

United States of America


  General Description   H. J. Andrews Biosphere Reserve and Experimental Forest is located in the western Cascade Range (Oregon) in the drainage basin of Lookout Creek, a tributary of the Blue River and the McKenzie River.
Forests in this region are among the tallest and most productive in the world. Lower elevation forests are dominated by Douglas-fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla), and western redcedar (Thuja plicata). As elevation increases, Douglas-fir and western red cedar decline in importance and western hemlock is gradually replaced by Pacific silver fir (Abies amabilis). Non-forest habitats include wet and dry meadows, rock cliffs, and talus slopes. H. J.Andrews Forest supports a rich biological diversity for a north temperate ecosystem including many plant and animal species associated with old-growth forests of the Pacific Northwest (e.g. northern spotted owl, Strix occidentalis).
The biosphere reserve is dedicated to both research and education, receiving a number of scientists and visitors each year. The research programmes have been diverse throughout the history of the H. J. Andrews Forest. Emphasis was given to applied research in silviculture, wildlife, landscape ecology under the Long-term Ecological Research (LTER) programme in the 1980s. Today, the central research question is of high scientific, social and economic interest: How do land use, natural disturbances, and climate change affect three key ecosystem properties (carbon dynamics, biodiversity, and hydrology)?
  Major ecosystem type   Mixed mountain and highland systems (conifer-dominated)
  Major habitats & land cover types   Douglas-fir/western hemlock/western red cedar forests
  Location   4415'N, 12210'W
  Area (hectares)    
  Total   6,400
  Core area(s)  
  Buffer zone(s)  
  Transition area(s) when given  
  Altitude (metres above sea level)   +435 to +1,631
  Year designated   1976
  Administrative authorities   H.J. Andrews Experimental Forest, U.S. Department of Agriculture, Forest Service in cooperation with Oregon State University
  Brief description   Hydrology
Stream ecology
Terrestrial-aquatic interactions
Nutrient cycling
Carbon budgets
Ecological succession
Disturbance ecology
Specific variables: see data at web page
  Specific variables...    
  Abiotic   Climate, hydrology, nutrients.
  Biodiversity   Biodiversity, ecology, ecotone, freshwater/inland water, phytosociology/succession, productivity.
  Socio-economic   n.a.
  Integrated monitoring   n.a.
  Contact address   Arthur McKee
H.J. Andrews Experimental Forest
P.O. Box 300
97413 Blue River, Oregon
United States of America
  Telephone   (1.541) 822 6300 (field station)
(1.541) 750 7350 (campus)
  Fax   (1.541) 822 6329 (field station)
(1.541) 750 7329 (campus)
  Web site
  Contact address   Sherri Johnson
Forestry Sciences Laboratory
3200 Jefferson Way
97331 Corvallis, Oregon
United States of America
  Telephone   (1.541) 758 7771
  Fax   (1.541) 758 7760
  Web site

Last updated: 09/01/2002

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