Post on 29-Jan-2016
description
Variability in Older Forest Structurein Western Oregon
Nathan Poage
USDA Forest ServicePNW Research Station
RMP Program
Western Mensurationists’ MeetingFortuna, California
June 19, 2006
Report = http://fresc.usgs.gov/products/papers/1445_Poage.pdfData = http://fresc.usgs.gov/ArcIMS/Website/lsog/viewer.htm
Northwest Forest Plan
Late-Successional Reserves (LSRs)7,533,000 acCongressionally Reserved Areas 7,320,600 acMatrix 3,975,300 acRiparian Reserves 2,627,500 acAdaptive Management Areas 1,521,800 acAdministrative Withdrawn Areas 1,477,100 ac
Total = 24,455,300 ac
Land Use Allocations
LSRs shownin yellow.
?
What are “legitimate” structural targets for young,managed stands in Late-Successional Reserves?
CurrentStructure
???
OR090-TS86-014 (eug\tc85\e04388) and photo (d_postdoc\d_bigtree\d_airphoto\site_092\2000-13-43.1-2.jpg)
Unit 1
(48 acres)
###
# #
###
##
#
#
#
###
#
#
##
#
##
##
###
###
#####
##
#
#############
#
##
#
#
##
##
###
##
##
####
#
#######
##
#####
#########
##
###
###
#
###
##
###
#
########
###
####
#
#
###
####
#
###
###
###
#
##
####
######
#
#
####
# ##
##
#
#######
# ##
###
##
## ###
#
##
########
###
#
#### #
#######
##
##
### ##
#
###########
###
####
####
##
###
###
##
#######
####
###
### #####
#
##
#####
#####
#####
##
##
##########
#####
############
#
###
##
########## ##############
#######
#######
##
#
###
###
#############
#####################
###
######
##########
###### ##
#####
#
#### ######
##
##
#
##
## ###
#####
##########
#### #####
#
####
###
###
############
############
##
###
###
#######
###
######
##########
#####
###
####
#
#
#
##
#
Oregon
Portland
Poage and Tappeiner (2005)
Tree species and size structure of old-growth forests in central western Oregon, USA.
Forest Ecology and Management 204:329-343.
888888888804388 010178000095 0210 204388011 12 2 6 6 304388011 12 3 6 6 6 204388011 16 3 5 6 6 104388011 16 4 5 6 6 6 204388011 16 6 5 6 6 6 6 6 104388011 20 4 5 5 6 6 104388011 20 5 5 5 5 6 6 204388011 20 6 5 5 5 6 6 6 4
BLM District(04 = Eugene)
SaleNumber
Sub-SaleNumber
Species Code(01 = Douglas-fir)
Diameter Class(4 inch classes)
Number of16-foot Logs
Log Grades(if graded)
Number of Trees in Sub-SaleFitting This Diameter and
Log Grade Description
0
1
2
3
4
12 24 36 48 60 72 84
DBH (inches)
Tre
es p
er A
cre
Douglas-fir Cedar Hemlock
Species – Diameter Distributions