Klamath National Forest
Geographic Information System
Theme Documentation
Revision Date: November 1996
Theme: LMP Timber Types
Disclaimer:
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The Klamath National Forest cannot assure the
reliability or suitability of this information
for a particular purpose. Original data was
compiled from various sources. Spatial
information may not meet National Map Accuracy
Standards. This information may be updated
without notification.
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Project Name: KNF Base Layer
IDENTIFICATION INFORMATION
Coverage Extent: Forest-wide
Source: 1976 Timber Type Inventory, Solicitation No. R5-
05-76-46
Last Update: April 1995
Primary Feature Type:Polygon
Other Feature Types:
Distribution Limitations: None
Data Resolution: 1:24000
Projection: UTM Zone 10
Comments: Originally mapped from aerial photos by contract
administered and inspected on Forest. See
contract specifications for standards applied to
components of attributes. SOURCE INFORMATION
Source System: LIDES/DWRIS (USFS Region 5 GIS)
Source Scale: 1:24000
Source Projection: UTM Zone 10
Capture Method: scanned
CUSTODIAN INFORMATION
Contact Organization:KNF Supervisor's Office
Resource Contact: Ed Matthews, Timber Management Staff
Phone:916-842-6131 Email:
Address: 1312 Fairlane Road
Yreka, CA 96097
GIS Contact: Dianne Torpin, KNF Supervisor's Office, GIS
Staff
Phone:916-842-6131 Email:
Address: 1312 Fairlane Road
Yreka, CA 96097
PROCESSING INFORMATION
Theme Generation:
Lineage:
For more detailed information, see the Edit Log for this theme. ATTRIBUTE INFORMATION
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System Software: Arc/Info
Table Name:.PAT
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Item Name: tim_type Item Type: char Item
Length: 6
Item Value Description
Variable length field composed of primary
species, secondary species (if present),
conifer size class, conifer density (crown
cover). Note that size class & density
apply ONLY to the commercial conifer
component. Thus, heavily stocked polygons
could conceivably be classified as poor or
sparse (density) if the stocking were
mainly in hardwoods and/or non-commercial
conifers.
examples:
DFWF3G
DF3G
BA/N
LQ/T
M.89
Timber Type labels have been decomposed (parsed) into the following
items:
Item Name: s1 and s2 Item Type: char Item
Length: 2
Primary (s1) and secondary (s2) species
Item Value Description
I. Non-Vegetated
BA Barren; les than 10% vegetative cover
WA Bodies of water 10 acres or larger
UD Urban-developed; settlements, quarries, man-made
landscape features 10 acres or larger
II. Non-Forest
Non-Woody Vegetation
GL Grass
GH Weeds, herbaceous cover
Shrubs
SB Sagebrush
SA Chaparral; manzanita & associated shrubs
SC Chamise; adenostoma & associated shrubs
SM Montane; buckbrush, chokecherry, whitethorn, etc.
SR Streamside, wet meadow or bog shrubs
SX Misc. shrubs; bitterbrush, mountain mahogany, etc.
III. Forest
Non-Commercial Conifers
KP Knobcone pine
DP Gray pine
FP Foxtail pine
PJ Pinyon-juniper complex
Commercial Conifers
PP Ponderosa pine
JP Jeffrey pine
SP Sugar pine
WP Western white pine
LP Lodgepole pine
WF White fir, grand fir
RF Red fir
DF Douglas Fir
LC Incense cedar
PC Port Orford cedar
MH Mountain hemlock
BS Brewer spruce
Commercial Hardwoods Non-Commercial Hardwoods
TQ Tanoak LQ Liveoak
PM Pacific madrone WQ Oregon white oak
BQ Black oak CP Chinquapin
IV. Plantations
D. Planted to douglas fir
F. Planted to true fir
M. Planted to mixed conifer
P. Planted to ponderosa pine
R. Planted to red fir
Item Name: size Item Type: integer Item
Length: 1
Item Value Description
Note that this item applies ONLY to the conifer component of a stand.
1 Seedlings & saplings
2 Poles; crowns > 12 feet diameter
3 Small sawtimber; crowns 13-24 feet
diameter
4 Medium sawtimber; crowns 25-40 feet
diameter
5 Large sawtimber; crowns over 40 feet
diameter
6 Two-storied stands
Note that a comon rule of thumb is that 1-foot of crown equates to 1-
inch diameter breast height
Item Name: density Item Type: char Item
Length: 1
Item Value Description
S Sparse; <20% crown cover
P Poor; 20-39% crown cover
N Not adequate; 40-69% crown cover
G Good; >69% crown cover
Item Name: year Item Type: char Item
Length: 2
Item Value Description
eg. 89 Year planted; applies only to regeneration
harvest units
NS Non-stocked (failed) plantation
Item Name: capable Item Type: char Item
Length: 2
Item Value Description
/N Non-productive site based on field data
/T Productive site based on field data