Amd_one_four__pages.docx

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PAC VEGETATION SURVEY STAND EXAM SERVICES
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AG-94TZ-S-16-0018
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AMENDMENT ONE FOUR PAGES

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C.4.3. Data Collection Specifications

C. Plot Form (CSE)

The following items are required to be recorded at each plot on the Plot form. Detailed information and lists of valid codes for each data item are found in the Common Stand Exam Users Guide and Appendices (see Government Furnished Property). The contractor shall be responsible for collecting and filling out the Plot Data Form for all data items that are set to “YES” in the “Required” column

Field Num

Field Description

Required Data Source

Comments

Region
YES
Government
Always “03”
Proclaimed Forest
YES
Government
Always “04”
District
YES
Government
See Exhibit 1 – Survey Stand List
Location/Watershed Alias
YES
Site List
See Exhibit 1 – Survey Stand List
Stand Num
YES
Site List
See Exhibit 1 – Survey Stand List
1
Plot Num
YES
Site List
See Exhibit 1 – Survey Stand List
2
Latitude
YES
Contractor
GPS - format dd mm ss.s
3
Longitude
YES
Contractor
GPS - format dd mm ss.s
4
Capable Grow Area
NO
Contractor
Measured on a 1/10 ac plot
5
Aspect
NO
Contractor
6
Slope
NO
Contractor
7
Slope Position
NO
Contractor
8
Slope Horz Shape
N/A

Not collected

9
Slope Vert Shape
N/A

Not collected

10
Elevation
YES
Contractor
11
Existing Vegetation
N/A

Not collected

12
Potential Vegetation
NO
Contractor
13
Fuel Model
NO

Derived from GTR INT-122

14
Residual Description Code
NO
Contractor
15
Dist Seed Wall
N/A

Not collected

16
History
NO
Contractor
17
History Date
NO
Contractor
18
User Defined Code
YES
Contractor
Percent canopy cover (calculated from total canopy intercept C.4.3.D)
19
Remarks
YES
Contractor
Tag Number, DBH, Azimuth, and Distance to plot center of two reference trees per C.4.2.B

Exhibit 2a -- SAMPLE DESIGN SPECIFICATIONS The following specifies the sample design to be used. The contractor will need to include the sample design with each stand.

Sample Design

REGION: 03. PROCLAIMED FOREST: 04 _ DISTRICT: _ LOCATION: ____ STAND NO.___________

Form

Sample Selection Method

XXX

Sample Expansion Factor

XXXXX.X

Starting Azimuth

XXX

Subpop.

Filter

XXXXXX

Selection Criteria Number

XX

Subpop.

Variable

XXX

Subpop.

Minimum Value

XXXX.X

Subpop.

Maximum Value

XXXX.X

TREE
FRQ
1/10
LIVE
1
DBH
1.0
999.9
LIVE
2
DRCA
1.0
999.9
TREE
FRQ
1/5
DEAD
3
DBH
12.0
999.9
4
DRCA
12.00
999.9
TREE B
FRQ
1/40
LIVE
5
HGT
0.5
4.49
6
DBH
0.1
.99
7
DRCA
0.1
.99
DNWDYC
TRN
12
DOWN
8
DIA
.01
.24
DOWN
9
DIA
.25
.99
DNWDYC
TRN
20
DOWN
10
DIA
1.00
2.99
DNWDYC
TRN
100
DOWN
11
DIA
3.00
99.9
VEG TALLYD
FRQ
1/40
LIVE
XX
HGT
0.1
100

A DRC species will be measured at DBH (and not DRC).

B Any tree > 4.5’ in height and < 1” DBH (including DRC species) will be given assigned DBH of 0.5”

C The sample expansion factors represents double the size of the Brown’s transects because there are two 50’ transects per plot.

D VEG TALLY is recorded outside of ExamsPDR. Shrubs will be grouped by height class and tallies will be recorded in the provided spreadsheet

Exhibit 7 - CSE DATA FORMS

TREE INSPECTION FORM

Overstory Plot and Snag Plot for Larger Trees (L.T.) -- Fixed Area Plot

A
B
C
FIELD NUM
NAME
ACCURACY STANDARD
POINT VALUE
# OF ERRORS
DEDUCTION (A X B)
1
Plot Number
no errors
unacceptable
2
Tag ID Number
no errors
10
3
Tree Status
no errors
50
4
Tree Class
no errors
2
5
Site Tree/GST - field correct
no errors
50
5
Site Tree -- Selection
no errors
20
6
Tree Species
no errors
50
7
Tree Count (live/dead)
1)
20 / 75
7
Tree Count (stumps/down)
2)
20
8
Number of Stems
no errors for DRC species
2
9
DBH/DRC
3)
17
10
Tree Height
4)
10
11
Height to Crown
+/- 10 %
2
12
Radial Growth
+/- 1/20 inch
5
13
Radial Growth #2
+/- 1/20 inch
5
14
Height Growth
+/- 1 foot
5
15
Tree Age
+/- 10 %
10
16
Crown Ratio
+/- 10 units
5
17
Crown Class
no errors
5
18
Crown Width
+/- 20%
5
19
Wildlife Use
no errors
2
20
Log/Snag Decay
no errors
5
21
Cone Serotiny
no errors for PICO, PIBA
5
22
Damage Category
no errors
10
23
Damage Agent
no errors
2
24
Damage Part
no errors
2
25
Damage Severity
no errors
5
26
Tree Remarks
complete and accurate
10

L.T. Deductions (sum of column 'C')

D

L.T. Tree Records Inspected

E

L.T. Sample Score (D / E)

F

1)Tree Count

2) Tree Count (stumps/down) Accuracy Standard

Exam
no errors

All Exam Levels

Trees < 5” DBH
20 point deduction

N/A

Trees ≥ 5” DBH
75 point deduction

3) DBH/DRC Accuracy Standards

a.
subpop min value to 11.9 inches
+/- 0.1 inch

4) Height

b.
12.0 inches to 23.9 inches
+/- 0.2 inch

All Exam Levels

c.
24.0 inches to 34.0 inches
+/- 0.3 inch
Trees < 5” DBH
+/- 1 foot
d.
> 35.0 inches
+/- 0.5 inch
Tress ≥ 5” DBH
+/- 10%

VEGETATION COMPOSITION INSPECTION FORM 1 – Understory Plot for Shrubs- Fixed Area Plot

A
B
C
FIELD NUM
NAME
ACCURACY STANDARD
POINT VALUE
# OF ERRORS
DEDUCTION (A X B)
1
Plot Number
no errors
unacceptable
2
Species
no errors
5
3
Count
+/- 1 plant
5
4
Height
+/- 10 % of height
3
5
User Defined Data
no errors
2
6
Remarks
complete and accurate
1 or 5*

Total Deductions (sum of column 'C')

D

Number of Veg Records Inspected

E

Veg. Comp. Form Score (D / E)

F

*if Remarks is a required field, point value = 5, else point value = 1

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