REVISED_p.HP_Sample_Design_Items 1Dthru2C_Attachment 1.pdf
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- AG-04R3-S-10-0013
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Revised Sample Design Items
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Stand Exams – Heppner Ranger District 2010
Sample Design
Quick Plot
Variable radius plot using a basal area factor (BAF) of 10 for live and dead trees at least 5.0 inches diameter at breast height (DBH).
Fixed radius plot of 1/75 acre (13.6 foot radius) for live trees 0.01 – 4.99 inches DBH, or 0.50 – 4.49 feet in height. Similar sized trees can be grouped together (for instance, if there are 20 seedlings each approximately 2.5 feet high, this can be recorded in the CSE program on one line with the TREE COUNT (TCnt) field set to 20)
Fuel photo series for down woody debris.
Sample Item
Sample Selectio n Method
Sample Expansion
Factor
COND
Subpop.
Filter
Subpop.
Variable
Subpop.
Minimum
Value
Subpop Maximum
Value
TREE BAF 10 - LIVE DBH 5.0 999.99
OR DEAD DBH 5.0 999.99
TREE FRQ 75 - LIVE HGT 0.5 4.49
OR LIVE DBH 0.5 4.99
DWNWDY FRQ 1 DOWN DIA 0.01 0.25
OR DOWN DIA 0.26 1.0
OR DOWN DIA 1.10 3.0
OR DOWN DIA 3.10 9.0
OR DOWN DIA 9.10 20
OR DOWN DIA 20.1 99.9
Tree Data – (Quick Plot). The following fields shall be completed for each sampled tree.
For information needed to complete these fields, refer to the User Guide. Tolerances listed in measurable standards supersede those found in the User Guide if differences are found.
Tag (Tree) Number Required
Status Required
Tree Class Required
Species Required
Tree Count Required
DBH/DRC (Record all to nearest 1/10th of an inch)
Required
Height Not Required
Height to Base Live Crown Not Required
Crown Ratio Not Required
Crown Class Not Required
Wildlife Use Not Required
Log/Snag Decay Not Required
Damage Category (Record 3 damage codes maximum)
Not Required
Damage Agent Not Required
Damage Severity Not Required
Damage Part Not Required
Extensive Exam
Variable radius plot using a basal area factor (BAF) of 10 for live and dead trees at least 5.0 inches diameter at breast height (DBH).
Fixed plot of 1/75 acre (13.6 foot radius) for live trees 0.01 – 4.99 inches DBH, or 0.50 – 4.49 feet in height. Similar sized trees can be grouped together (for instance, if there are 20 seedlings each approximately 2.5 feet high, this can be recorded in the CSE program on one line with the TREE COUNT (TCnt) field set to 20)
Fuel photo series for down woody debris.
Sample Item
Sample Selection Method
Sample Expansion
Factor
COND
Subpop.
Filter
Subpop.
Variable
Subpop.
Minimum
Value
Subpop Maximum
Value
TREE BAF 10 - LIVE DBH 5.0 999.99
OR DEAD DBH 5.0 999.99
TREE FRQ 75 - LIVE HGT 0.5 4.49
OR LIVE DBH 0.5 4.99
DWNWDY FRQ 1 DOWN DIA 0.01 0.25
OR DOWN DIA 0.26 1.0
OR DOWN DIA 1.10 3.0
OR DOWN DIA 3.10 9.0
OR DOWN DIA 9.10 20
OR DOWN DIA 20.1 99.9
Tree Data – (Extensive Plot). The following fields shall be completed for each sampled tree. For information needed to complete these fields, refer to the User Guide.
Tolerances listed in measurable standards supersede those found in the User Guide if differences are found.
Tag (Tree) Number Required
Status Required
Tree Class Required
Species Required
Tree Count Required
DBH/DRC (Record all to nearest 1/10th of an inch)
Required
Height one co-dominant tree per plot
Height to Base Live Crown Required
Crown Ratio Required
Crown Class Required
Wildlife Use Required
Log/Snag Decay Required
Damage Category (Record 3 damage codes maximum)
Required
Damage Agent Required
Damage Severity Required
Damage Part Required
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