Forest Investment Account

Abstract of FII Project R02-37

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Variable Retention and the Conservation Of Small Streams and Their Riparian Areas

Author(s): Beese, William (Weyerhaeuser Company Ltd.)
Subject: Biology, Chemistry/biochemistry, Forestry, Hydrology, Silviculture/Forest Management Systems
Series: Forest Investment Account (FIA) - Forest Science Program


This proposal addresses several high priority knowledge gaps regarding watershed processes and aquatic systems. We will examine the effects of clear-cutting versus different levels and distribution of riparian tree retention on the biological and physical processes in small streams. We will study the extent to which changes associated with harvesting are moderated by two variable retention options. We will develop a simple, GIS-based model to predict the cumulative effects of timber harvest along small streams under various management scenarios on downstream reaches. The project links several collaborators and existing initiatives to form an efficient approach for research and extension.

For further information, please contact William Beese, Weyerhaeuser Company Ltd. (

Updated September 08, 2005 

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