Slide 1

FVS Data Translocation
Techniques with the BLM
FORVIS Database
3rd FVS Conference
Feb. 14, 2007
Tim Bottomley


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BLM FORVIS Database
• FORVIS – Forest Vegetation Information
System; initial release in 2001, Version 2
in 2005
• Distributed database stored at individual
State offices in an Informix RDBM
• MS Access is the user interface through
an ODBC driver


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Slide 5

FORVIS
• Contains 32 data tables
• Only 2 relate to FVS
– stand_data
– tree_data


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FORVIS Field Data Entry Form
BLM FORVIS PLOT MEASUREMENT RECORD

Dia. Grow period:
Mortality period:

Site species:
Site index:
Remarks
Topographic position

Site preparation

Aspect

Slope

Prescription code

Damage code 3

Damage severity 2

X XX XXX XXX X X

Damage code 2

X

Damage code 1

X XX XX XX XX XX X

Crown ratio

Tree value class

XXX XXX XXX XXX XXX.X

Damage severity 1

Plot Data

Height growth

Height to top kill

Tree height

Tree age

No. plots:
Acres:
Stockable %:

Date :

Damage severity 3

XXX XXX XX X XXX XXX.X XX
X

BAF:
Plot size:
DBH break:
Tree Data

Diameter growth

Number of stems

Diameter

Species

Slope:
Elevation:

Tree history

Tree count

Tree number

Plot number

Habitat type:
Birth year:
Aspect:

Page______of______
Observer Name :
Stand Data and Sample Design

Habitat type

Location Common Name or Legal Desc:
Polygon Identifier


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FORVIS Plot Data Form


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Portion of Visual Basic Script


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2nd Option for exporting data


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FORVIS 2 allows multiple stands in SLF


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Seedling Issue


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Importing FVS Run into FORVIS


Slide 22

Import of FVS Run


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FORVIS with ArcMap Extension


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Stand Summary Report
FORVIS - Stand Summary Information
FORVIS
Habitat
Birth

TAHOSA_05

901
1890
7

Plot

Slope:

1

DBH

1997

88 No. of plots:

BAF:

Aspect:

FVS

Inventory

Elevatio
40

4

Nonstockable

Latitud
Longitud

2

Year:

Quad. mean
Average

Canopy

Hgt. growth

Model

Trees per

30
6.2

132

Cubic

442

31

Bd. Ft.
Structure

1.0

Average

Canopy

44

Dominate

7.1

181

Cubic

619

41

Bd. Ft.

526

Structure

3

Year:
Trees per

2017
4494

Quad. mean

1.0

Average

8

Stand density
Canopy

3

Basal

5

Stand density

0

2007
4551

Quad. mean

2

Dominate

Year:

Basal

74

Dominate

8.0

272

Cubic

60

Bd. Ft.

Year:

921
1,225

2027
4467

Structure

3

Quad. mean

2.0

Basal

114

Average

11

Dominate

Stand density
Canopy

10

Max. basal
Stnd. den.

Basal

2

Stand density

Trees per

Structure

1.0

Mortality

Location:
Diam. growth

1997
4607

8.5

383

Cubic

1,349

76

Bd. Ft.

2,230

10
5

100

Stand Summary Information from FVS:

Trees per

Diam. growth
Hgt. growth

150 Acres:
5 Stockable

1/17/2007

Site index:

30

Site

7


Slide 30

Big Question for BLM?
Should BLM look at using the database
extension of FVS in lieu of creating the
stand list and tree data text files for
FVS input?


Slide 31

Questions?