J-3_-_Sample_Thinning_Inspection_Form.pdf

USDA - FOREST SERVICE THINNING INSPECTION PLOT FORM

ID CONTRACT

CONTRACT SPECIFICATIONS

STAND SUM.

FOREST Nez – Clear CONTRACTOR

ACCEPT.MIN/MAX

TC/AC

TO TARGET ACTUAL

DISTRICT NUMBER PRIORITY SP. PREF. TREES LEFT/AC

INSPECTOR ITEM PLOT SIZE CATEGORY "C"/AC/

DATE SUB-ITEM

ACCEP. TREES/PLOT

TO

**TREES/AC

IGNORED

REMARKS

COMP/STD(S)

VARIATION OF

SPACING

% OR ± FT

TREES/AC. BELOW

ACRES SPECIES IGNORED** MIN.HT

WORK ACCOMPLISHED %

MIN. CUT TREE

HEIGHT

FT

CONTRACT TIME REMAINING %

MAX. CUT TREE DBH.

IN

TOTAL TREES/

ACRES

ACCEP. CAT "C" PER

AC.

Plot No.

(1)

TREE EVALUATION

(see back)

TREES LEFT:

(INCL.SAT.,

TREES ABOVE

MAX DBH. &

EXCLUDES**)

CREDIT

NONSTK.

SPOTS

SURPLUS

S2 AND

CAT. "A"

IMPROPER LEAVE

TREE SELECTION

UNCORRECTABLE

CAT. "B"

EXCESS TREES

CORRECTABLE

CAT. "C"

CORRECTABLE

Code

Species (2)

9 10 11 12 13 S1,S2

(3) S3, S4

(4)

(5) A1,A2, A3

(6) A4,A5

(7) B, B1 (8)

C1-C6 (9)

Remarks:

TOTAL ALL PLOTS

TOTAL PER ACRE

TREE EVALUATION CODING AND INSTRUCTIONS

ACCEPTABLE TREES and CREDITS FOR NON STOCKED SPOTS (3-5) CATEGORY "C" TREES (9)

S1 - Meets all specifications and species preference C1 - Not completely severed from stump

S2 - Tree meeting maximum d.b.h. cut limit C2 - Hang-up tree

S3 - Credit leave tree due to insufficient origianl stocking C3 - High stump

C4 - Tree not girdled

C5 - Tree improperly girdled

C6 - Small tree missed

CATEGORY "A" TREES (6) AND (7)

A1 - Improper spacing relationship or too many cut

A2 - Tree cut exceeds the maximum d.b.h. cut limit

A3 - Leave tree damaged excessively by salvage or felling operations

A4 - Improper tree selection (does not meet specification)

A5 - Wrong tree cut

CATEGORY "B" TREES (8)

B - Improper spacing or too few trees cut (Excess Trees)

B1 - Stump with live limbs

INSTRUCTIONS: 1. The sum of Columns (3) and (4) cannot exceed maximum acceptable trees per plot.

2. If the total of Col. (3) and Col. (4) is less than the minimum acceptable trees per lot and there are no improperly cut trees (Col. 6 and 7 - Category A), Column 4 must be increased to the extent the total of Col. ((3) and Col. (4) equals the average number of acceptable trees per plot. If trees are improperly cut (Category A) the total of Columns 3 and 4 must not exceed the sum of maximum acceptable trees per plot minus the n;umber of Category A trees (Columns 6 and 7).

ADDITIONAL

NOTES:

Quality Thinning Calculations: NOTES: 1. ** = Species of trees ignored in thinning activity.

1.00 - [

COL. (6) + COL. (7) + COL. (8) ]

x 100 = % Quality Thinning

(2). If species of trees is needed, record species for each tree tallied in Column (2).

(i.e.) WL, WP, DF, GF, PP, WH, LP, ES, SAF

COL. (3) + COL. (4)

TOTAL PER ACRE CALCULATIONS: TREES PER ACRE = "TOTAL ALL PLOTS" in column divided by total of plots, then multiplied by reciprocal of plot size.

TPA

12’ x 12’

6 Trees

3 Trees

1/50th

1/100t h

TPA

11’ x 11’

7 Trees

3-4 Trees

1/50th

1/100t h

TPA

10.44’ x

10.44’

8 Trees

4 Trees

1/50th

1/100t h

TPA

9.84’ x 9.84’

9 Trees

4-5 Trees

1/50th

1/100t h

TPA

9.33’ x 9.33’

10 Trees

5 Trees

1/50th

1/100t h

TPA

8.9’ x 8.9’

11 Trees

5-6 Trees

1/50th

1/100t h

TPA

8.5’ x 8.5”

12 Trees

6 Trees

1/50th

1/100t h

Excess Small Tree Calc

# of small trees x plot size (50)

# of plots

Over 50 small trees per acre unacceptable

-or-

More than one small tree per plot

Tally in Remarks