You are here: Home
/ Publication Information
Title: Using Forest Service forest inventory and analysis data to estimate regional oak decline and oak mortality
Author: Kromroy, Kathryn W.; Juzwik, Jennifer; Castillo, Paul; Hansen, Mark H.;
Source: Northern Journal of Applied Forestry. 25(1): 17-24.
Publication Series: Scientific Journal (JRNL)
Description: Damage and mortality data are collected as part of the US Forest Service, Forest Inventory and Analysis (FIA) ongoing assessments of the nation's timberlands. The usefulness and value of FIA tree data in assessing historical levels of oak decline and oak mortality were investigated for seven Midwestern states. The data were collected during two periodic inventories conducted between the early 1970s and the mid-1990s. One-tenth to one-third of the oak trees had decline-associated damage in a given inventory, but no trends over time were apparent across the states. The percentages of dead trees ranged from less than 1 to 11 across all inventories and states; mortality was higher in the late inventory than the early inventory for all states. This is the first reported attempt to quantify oak decline across the Midwestern Region and it was accomplished using FIA tree data. The major concerns of the approach used are the subjective nature of the damage codes used to tabulate declining oaks and the inconsistencies and inherent subjectivities in the FIA recorded codes. The major drawback for non-FIA researchers is the time required to understand the intricacies of the FIA system.
Keywords: Quercus spp., forest inventory, analysis, oak decline, oak mortality
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
XML: View XML
Kromroy, Kathryn W.; Juzwik, Jennifer; Castillo, Paul; Hansen, Mark H. 2008. Using Forest Service forest inventory and analysis data to estimate regional oak decline and oak mortality. Northern Journal of Applied Forestry. 25(1): 17-24.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility