Record Details

A new approach to evaluate forest structure restoration needs across Oregon and Washington, USA

ScholarsArchive at Oregon State University

Field Value
Title A new approach to evaluate forest structure restoration needs across Oregon and Washington, USA
Names Haugo, Ryan (creator)
Zanger, Chris (creator)
DeMeo, Tom (creator)
Ringo, Chris (creator)
et al. (creator)
Date Issued 2015-01-01 (iso8601)
Note To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by the author(s) and published by Elsevier. The published article can be found at: http://www.journals.elsevier.com/forest-ecology-and-management.
Abstract Widespread habitat degradation and uncharacteristic fire, insect, and disease outbreaks in forests across
the western United States have led to highly publicized calls to increase the pace and scale of forest restoration.
Despite these calls, we frequently lack a comprehensive understanding of forest restoration
needs. In this study we demonstrate a new approach for evaluating where, how much, and what types
of restoration are needed to move present day landscape scale forest structure towards a Natural Range
of Variability (NRV) across eastern Washington, eastern Oregon, and southwestern Oregon. Our approach
builds on the conceptual framework of the LANDFIRE and Fire Regime Condition Class programs.
Washington–Oregon specific datasets are used to assess the need for changes to current forest structure
resulting from disturbance and/or succession at watershed and regional scales.
Across our analysis region we found that changes in current structure would be needed on an
estimated 4.7 million+ ha (40% of all coniferous forests) in order to restore forest structure approximating
NRV at the landscape scale. Both the overall level and the type of restoration need varied greatly between
forested biophysical settings. Regional restoration needs were dominated by the estimated 3.8+ million
ha in need of thinning and/or low severity fire in forests that were historically maintained by frequent
low or mixed severity fire (historical Fire Regime Group I and III biophysical settings). However, disturbance
alone cannot restore NRV forest structure. We found that time to transition into later development
structural classes through successional processes was required on approximately 3.2 million ha (over 25%
of all coniferous forests). On an estimated 2.3 million ha we identified that disturbance followed by succession
was required to restore NRV forest structure.
The results of this study are intended to facilitate the ability of local land managers to incorporate
regional scale, multi-ownership context into local forest management and restoration. Meeting the
region-wide restoration needs identified in this study will require a substantial increase in the pace
and scale of restoration treatments and coordination amongst governments, agencies, and landowners.
Genre Article
Access Condition http://creativecommons.org/licenses/by-nc-sa/3.0/us/
Topic Pacific Northwest
Identifier Haugo, R., Zanger, C., DeMeo, T., Ringo, C., Shlisky, A., Blankenship, K., ... & Stern, M. (2015). A new approach to evaluate forest structure restoration needs across Oregon and Washington, USA. Forest Ecology and Management, 335, 37-50. doi:10.1016/j.foreco.2014.09.014

© Western Waters Digital Library - GWLA member projects - Designed by the J. Willard Marriott Library - Hosted by Oregon State University Libraries and Press