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Ministry of ForestsMinistry of Forests
Resources Inventory BranchResources Inventory BranchGrowth and Yield SectionGrowth and Yield Section
Provincial PSP Training - EstablishmentProvincial PSP Training - Establishment
June 2001June 2001
AgendaAgenda Day 1 Thursday
Office Establishment proceduresElectronic data collection
Using GyHost 2001
Day 2 FridayField Establishment procedures
Using GyHand 2001
OverviewOverview Purpose
– Monitor»Mortality»Rate of growth»Change in structure
– Calibrate and validate models
Location– Remeasured every ten years– Accurate access notes (sketch map & description
of tie point)– Include map and air photo reference
Tie Point MarkerTie Point MarkerTwo plaques on tie tree that is flagged and painted
CENTRE FOR GROWTHSample No.____ Plot No.____
TIE POINT FOR GROWTH
Sample No._12_ Plot No. _1_Bearing _____ 42 (azimuth)_
Distance ___82 m_____R. No. _46_ Comp. No. _25_Date ___Sept. 10, 2001____
NATURAL ! MANAGED ! INST. NO.___
B.C.F.S.FOREST INVENTORY BRANCH
CENTRE FOR GROWTHSA. TYPE ___ INST. NO.___SAMPLE NO. __ PLOT NO.__
--------------------------------------------
TIE POINT FOR GROWTHSA. TYPE _G_ INST. NO.____SAMPLE NO.12_PLOT NO. _1_
BEARING ______ 42(azimuth)_____DISTANCE ____82 m____
-------------------------------------------REG. NO. __46_COMP. NO. _25_
DATE ____Sept 10, 2001____B.C.F.S.
FOREST INVENTORY BRANCH
Minimum DistancesMinimum Distances
TP
PC
Harvested
50 meters to disturbance or road
stand height
Lake
Tie PointTie Point
Access Notes should describe tie tree and tie lineAccess Notes should describe tie tree and tie lineSelect distinctive tie pointSelect distinctive tie point
The tie line must be painted and flagged with The tie line must be painted and flagged with annotated flaggingannotated flagging
TP
• predetermined horizontal distance• plot centre may be moved• predetermined bearing
Plot Centre MarkerPlot Centre MarkerTwo plaques on opposite sides of tree aligned with
the tie line.
CENTRE FOR GROWTHSample No._12_ Plot No._1_
TIE POINT FOR GROWTH
Sample No.____ Plot No. ___Bearing _________________Distance _________________
R. No. __46_ Comp. No. _25_Date ___Sept 10, 2001_____
NATURAL ! MANAGED ! INST. NO.___
B.C.F.S.FOREST INVENTORY BRANCH
CENTRE FOR GROWTHSA. TYPE __G_ INST. NO.___
SAMPLE NO. _12_ PLOT NO._1_--------------------------------------------
TIE POINT FOR GROWTHSA. TYPE ___ INST. NO.____SAMPLE NO.___PLOT NO. ___BEARING _________________DISTANCE ________________
-------------------------------------------REG. NO. __46_COMP. NO. _25_
DATE ____Sept 10, 2001____B.C.F.S.
FOREST INVENTORY BRANCH
Plot Centre & TP Plot Centre & TP MarkerMarker
A plot centre tree may be a tie tree to another A plot centre tree may be a tie tree to another sample in a stripsample in a strip
CENTRE FOR GROWTHSample No._12_ Plot No._1_
TIE POINT FOR GROWTH
Sample No._13_ Plot No. 1__Bearing ____42 (azimuth)_
Distance _____82 m____________
R. No. __46_ Comp. No. _25_Date ___Sept 10, 2001_____
NATURAL ! MANAGED ! INST. NO.___
B.C.F.S.FOREST INVENTORY BRANCH
CENTRE FOR GROWTHSA. TYPE __G_ INST. NO.___
SAMPLE NO. _12_ PLOT NO._1_--------------------------------------------
TIE POINT FOR GROWTHSA. TYPE _G_ INST. NO.____SAMPLE NO._13PLOT NO. _1_
BEARING ____42_(azimuth)________DISTANCE ____82 m________
-------------------------------------------REG. NO. __46_COMP. NO. _25_
DATE ____Sept 10, 2001____B.C.F.S.
FOREST INVENTORY BRANCH
The PlotThe Plot Minimum• 90 living trees
Sizes
0.04 ha 11.28 m0.05 ha 12.62 m0.06 ha 13.82 m0.07 ha 14.93 m0.08 ha 15.96 m0.09 ha 16.93 m 0.1 ha 17.84 m
• commercial &• non-commercial• >4.0 cm
Exception
A 0.08 ha PlotA 0.08 ha PlotDivide the plot into eight 0.01 ha sectors (45
degrees)These will serve as tagging sectors and 0.01 ha site
sectorsSector 1 is clockwise from North bearing
N
1
The PlotThe Plot
N
1
A 0.08 ha Plot (8 A 0.08 ha Plot (8 sectors)sectors)
N
7
6
5 4
3
2
18
Centre sectorCentre sector (0.01 ha) (0.01 ha)
N
7
6
5 4
3
2
18
Cs
The PlotThe PlotStart tagging from plot centre to perimeter
in 1st sector clockwise from North
N
7
6
5 4
3
2
18
The PlotThe PlotTagging pattern flows from sector to sector
N
7
6
5 4
3
2
18
The PlotThe PlotTags face plot centre for odd sectors and plot
perimeter for even sectors
N
7
6
5 4
3
2
18
Tree MeasurementsTree Measurements Species (commercial and non-commercial) DBH (for plot trees)
– >4.0 cm at 1.3 meters (Up hill side)
Classification– Tree Class (pathological indicators)
» 1, 2, 3, 4, 5 or 6– Crown class (position in the crown relative to other trees)
» 1, 2, 3, 4, 5 and ( 6 )– Live crown length (contiguous live crown)
» 10% to 100% (in 10% increments)
Sectors (tagging and site) Stumps ‘O’ or ‘N’ Damage Agents and Severity (tree and
sample)
Suitable for height?
Sample SetupSample Setup Centre stake flagged and cairn of rocks
for protection Triangulate (bearing and horizontal
distance from plot centre) centre stake to three tagged healthy plot reference trees near plot centre
Confirm slope corrected plot perimeter String perimeter and sectors Ensure nails on plaques and tree tags
will allow for growth Record plot attributes (crown closure,
slope, aspect, elevation, slope position, damage to reflect tree damage)
What is a Dead Tree?What is a Dead Tree?
Alive? Any tree with one
or more green needles
Bark may or may not appear to be alive
Note: Use tree comments for questionable
trees!
Dead TreesDead Trees
Standing trees >10.0 cm dbh and >1.3m in height– Tag, measure DBH and classify dead tree attributes
Dead Tree AttributesDead Tree Attributes Tree number and tree number certainty Species & species certainty Vertical position (standing or down) If standing: broken top and height to break If down: supported or on the ground Wildlife tree appearance (1 - 7) Appendix 22
Cross Section of 1/2 Cross Section of 1/2 WrapWrap
nail and tag
second nail
Forks and Non-forksForks and Non-forksBelow dbh
Cross Section
showing pith at germination point
Tagging Forked TreesTagging Forked Trees
D.B.H.A
B C
A = 2.4 cm If ‘B” in subplot
B = 24.8 cm Yes
C = 6.5 cm Yes
The Sub PlotThe Sub Plot
NMinimum Size
0.002 ha(2.52 m radius)
7
6
5 4
3
2
18
Maximum Size
plot size.
Minimum 20 commercial stems
0.3 m in ht. to 3.9 cm DBH
Target is 20 commercial trees– 0.3 m in height to 3.9 cm in DBH
For trees 2.0 cm to 3.9 cm in DBH– Tag and classify as in plot– Insert near tree number as out of
sequence
For trees under 2.0 cm in DBH– Do a dot count by species and “class”
0.3 to 1.3 m in height - [D Class = 0]0.1 to 1.9 cm in DBH - [D Class = 1]
The Sub-PlotThe Sub-Plot
For first two majors–Top height tree (software selected in centre
sector “C”)
–Site trees (software selected in site sectors)»4 - 10 (proportionate to plot size / 0.01 ha) »Must be “suitable”»no substitution!
–Fifteen others (down to 2.0cm dbh)
Other majors, minor and scattered– Up to fifteen if suitable and available
Mark direction for height with painted dot
Height Sample TreesHeight Sample Trees
Top Height TreeTop Height Tree
Largest dbh tree in a 0.01ha plot (Centre sector “C”)
Measurement specific
Suitability– Crown class 1 or 2 (not suppressed or residual)– No major defects (healthy)– Within 5% of original height (no major top
damage)
No substitution!
Site TreesSite Trees Largest dbh tree per 0.01ha plot
(software will select from site sectors)– Collect for the first two leading major species
Measurement specific
Suitability– Crown class 1 or 2 (not suppressed or residual)– No major defects (healthy)– Within 5% of original height (no major top damage)
No substitution!
Age Sample TreesAge Sample TreesBreast Height AgeBreast Height Age
‘Top height tree’
Site Trees – In complex stands - two more from younger trees– Confirm veteran age – Save cores in labelled straw (sample + tree number)– Want half of the cores to have pith– Measure 5, 10, 20 radial increment– Assess for suppression– Estimate age for rotten cores– Count/confirm ages in office with magnification
StandardsStandards Live TreesLive Trees
Species (genus) [2] no error Missed Plot Trees [2] no error within plot
+ 0.5% of plot/sub-plot radius
Breast Height [1] + 5.0cm of true
height
DBH [2] + 0.1cm or 1%
Height [2] + 20 cm or 2%
Age [1] + 2 years or 2%
StandardsStandardsDead TreesDead Trees
Species (genus) [1/2] no error* Missed Trees [1/2] no error within plot
+ 0.5% of plot radius
Breast Height [1/2] + 5.0cm of true height
DBH [1/2] + 0.2cm or 2%
Wildlife Tree [1/2] + 1 class* Applies to species certainty “1” and “2”
only
Less than 2.0 cm dbhLess than 2.0 cm dbh
Less than 2.0cm dbhLess than 2.0cm dbh
Before You Go..Before You Go..
Run verification to ensure sample is complete
Ensure non-verifiable sample data is completed
Remove all string and garbage
Complete tie line flagging and paint
Confirm access, tie point and tie line information
GY Data Collecting, Editing and Reporting SystemGY Data Collecting, Editing and Reporting System
Reports
Field TimeField Time
GyHand/GyHost SetupGyHand/GyHost Setup
In DOS or in Windows environment
CONFIG.SYS– buffers=24 (or multiples of 8)– files=249 (79 for HH) or higher but odd number
AUTOEXEC.BAT– prompt $p$g– path c:\;c:\dos
b = c x cos A
Leaning TreesLeaning Trees
c\A 2 4 6 8 10 11 12 14 16 18****** <2 % ****** **2>% - <5% **
5.0m 5.0 5.0 5.0 5.0 4.9 4.9 4.9 4.9 4.8 4.810.0m 10.0 10.0 9.9 9.9 9.8 9.8 9.8 9.7 9.6 9.5
15.0m 15.0 15.0 14.9 14.8 14.8 14.7 14.7 14.6 14.4 14.320.0m 20.0 20.0 19.9 19.8 19.7 19.6 19.6 19.4 19.2 19.025.0m 25.0 24.9 24.9 24.8 24.6 24.5 24.5 24.3 24.0 23.830.0m 30.0 29.9 29.8 29.7 29.5 29.4 29.3 29.1 28.8 28.535.0m 35.0 34.9 34.8 34.7 34.5 34.4 34.2 34.0 33.6 33.340.0m 40.0 39.9 39.8 39.6 39.4 39.3 39.1 38.8 38.4 38.045.0m 45.0 44.9 44.8 44.6 44.3 44.2 44.0 43.7 43.3 42.850.0m 50.0 49.9 49.7 49.5 49.2 49.1 48.9 48.5 48.1 47.6
a
A
CB
bc
c
A
2 0.9993904 0.9975646 0.9945218 0.99026810 0.98480711 0.98162712 0.97814814 0.97029616 0.96126218 0.951057
cos A
Heights on Leaning Heights on Leaning TreesTrees
Heights - Optimum Heights - Optimum DistancesDistances
Height = 27.0 metersAllowable error ( + 2%) = >26.5 - < 27.5 meters
1 x ht 1.1 x ht 1.15 x ht 1.2 x ht 1.3 x ht 1.4 x ht 1.45 x ht 1.5 x ht 2 x ht 3 x ht
27x 96=25.9
27x 97=26.2 29x90=26.1 31x84=26.0 33x79=26.1 35x74=25.9 37x70=25.9
27x 98=26.5 29x91=26.4 31x85=26.4 33x80=26.4 35x75=26.3 37x71=26.3 39x67=26.1 40x65=26.0 54x48=25.9 81x32=25.9
27x 99=26.7 29x92=26.7 31x86=26.7 33x81=26.7 35x76=26.6 37x72=26.6 39x68=26.5 40x66=26.4 54x49=26.5 81x33=26.7
27x100=27.0 29x93=27.0 31x87=27.0 33x82=27.1 35x77=27.0 37x73=27.0 39x69=26.9 40x67=26.8 54x50=27.0 81x34=27.5
27x101=27.3 29x94=27.3 31x88=27.3 33x83=27.4 35x78=27.3 37x74=27.4 39x70=27.3 40x68=27.2 54x51=27.5 81x35=28.4
27x102=27.5 29x95=27.6 31x89=27.6 33x84=27.7 35x79=27.7 37x75=27.8 39x71=27.7 40x69=27.6 54x52=28.1
27x103=27.8 29x96=27.8 31x90=27.9 33x85=28.1 35x80=28.0 37x76=28.1 39x72=28.1 40x70=28.0
27x104=28.1 29x97=28.2
3x 2x1x
True height
Within the allowable error
Within 3%
Over twice the allowable error
If nothing seems to work …..
Help !Help !Richard Bott
Computer Systems Consultant at (250) 361 – 3886
Will Smith MSRM, Resource Information Branch at (250) 356-6853
Web page - http://
srmwww.gov.bc.ca/tib/vri/ip/index.htmlGyHost on web at:
http://srmwww.gov.bc.ca/tib/vri/ip/software/index.html
Growth & Yield Manuals (Version 2001) available at:
http://srmwww.gov.bc.ca/tib/vri/ip/standards/index.html