Andrews Forest LTER

Andrews Research Experience for Teachers (RET) fellow Kurt Cox shows teachers the field investigations he does with students at the H.J. Andrews Experimental Forest

Key Research Findings:

The basic mechanisms for how temperatures change with elevation in mountain landscapes and how temperature inversions form in valleys have been understood for many years. Under "normal" circumstances, temperatures decrease at a known rate, the "lapse rate", with elevation.
By studying old-growth forests for decades, Andrews scientists discovered that these systems with their large, old trees and specialized plants and animals that rely on them are vital and unique components of a healthy landscape. This understanding has transformed the way that old-growth forests are conserved and managed today.
The results of Andrews' research has sometimes been in conflict with contemporary forest and stream management policies and practices. By working with policymakers and managers to develop new, science-based policies and management plans, Andrews' scientists have helped to transform the roles that forest scientists play in society.

Overview: The Andrews Forest is situated in the western Cascade Range of Oregon in the 15,800-acre (6400-ha) drainage basin of Lookout Creek, a tributary of Blue River and the McKenzie River. Elevation ranges from 1350 feet (410 m) to 5340 feet (1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. The research program has been diverse throughout the history of the Forest, with the dominant themes changing over the years. Today, several dozen university and federal scientists use this LTER site as a common meeting ground, working together to gain basic understanding of ecosystems and to apply this new knowledge in management policy.
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History: The H.J. Andrews Experimental Forest was established by the U.S. Forest Service in 1948. Over the more than 50 years since its inception, it has had a rich and diverse research history, with major research foci changing over time.
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Research Topics: Successional changes in ecosystems; forest-stream interactions; population dynamics of forest stands; patterns and rates of decomposition; disturbance regimes in forest landscapes.
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