STRATUM:Running a STRATUM Analysis
Creating a STRATUM Project
DefineObjectives
Perform FullInventory
Perform SampleInventory
Draw RandomSample
Map Sample
Install i-Tree(Desktop andPDA
Configure PDA
Quality Check
Collect Data
Transfer Data toDesktop
Community ForestManagement Plan
OR OR
Interpret Results
Report Results
Define DataInputs
Import AccessDatabase to STRATUM
Start STRATUMProject
Install STRATUM
ChooseInventory Method
Format/Quality Check/
Convert Data to Access
Use ExistingInventory
Process OverviewCreating a new STRATUM project:
Formatting your inventory database i-Tree Inventory PDA Utility Other inventories
Converting Excel inventories to Access format STRATUM formatted spreadsheet Create Access table for STRATUM import
Import Access database into STRATUM
Define Unmatched Species Codes
Define Inventory
Step 1: Formatting the Inventory Database
i-Tree PDA Utility Do not require formatting Shared database w/MCTI A STRATUM-compatible
Access table is automatically produced
Other Inventories STRATUM can only run after a
STRATUM-formatted MS Access inventory table has been imported.
Formatting requirements: MS Access (.mdb) table named
“STRATUM_Inventory” Must have STRATUM field headings
17 field names: order, spelling, case sensitive Format (i.e., numeric vs. alpha-numeric; null
value)
Step 2: Converting Excel inventories into Access Tables for STRATUM
Convert data to STRATUM format
Create metadata sheet
Create Access database and import inventory
Step 3: Import Access Database into STRATUM
Launch STRATUM application
Define inventory type (sample vs. full)
Import STRATUM-formatted .mdb file
Establish DBH value and Management Zones
Select Climate Region
Step 4: Define Unmatched Species Codes
STRATUM Limited to known predominant species by climate zoneNational Tree Database Codes
~22 species modeled per Climate ZoneSpecies Value AssignmentsTree Types
Non-tree Species CodesUsed for stocking reportsWon’t be counted as trees in reportsE.g., AVPSM = Available Planting Space for
Medium tree
Step 5: Define InventoryData fieldsDefault or CustomUnits (DBH only)
Tree Inventory by Record Edit existing recordsInsert new trees
Define Sample DataTotal number of Street
Segments (Citywide or by Zone)Change numbered zones to area
name
Define City Data
Define Cost Data
Define Benefit Price Data
Benefit Price DataEnergyHeating and Cooling
Air Pollution Emissions Transaction costsWang & Santini
Carbon DioxideeCO2.com
Stormwater Runoff ReductionDetention/RetentionProgram ExpendituresSanitary Water Treatment
Aesthetic and Other BenefitsMedian Home Sales Price
STRATUM:Reporting & Interpretation
DefineObjectives
Perform FullInventory
Perform SampleInventory
Draw RandomSample
Map Sample
Install i-Tree(Desktop andPDA
ConfigurePDA
Quality Check
Collect Data
Transfer Data toDesktop
Community ForestManagement Plan
OR OR
Interpret Results
Report Results
Define DataInputs
Import AccessDatabase to STRATUM
Start STRATUMProject
Install STRATUM
ChooseInventory Method
Format/Quality Check/
Convert Data to Access
Use ExistingInventory
Generating & Interpreting Reports
Interpret Results
Report Results
Resource StructureAnalysis
Benefit Cost Analysis
Community ForestManagement Plan
Resource Structure Analysis: 15 Basic Reports
Population Summary
Species Distribution
Relative Age Distribution
Importance Values
Condition
Relative Performance Index (RPI)
Stocking Level
Maintenance Recommendation
Maintenance Task
Land Use
Location
Conflicts
Canopy Cover
Other
Replacement Values
Benefit-Cost Analysis Reports
Annual BenefitsEnergyStormwaterAir QualityCarbon DioxideAesthetic/otherAll
Management Costs
Net Annual Benefits
STRATUM Reports
Global Exports to Excel SpreadsheetsCan interface with graphs and change themManipulate data and select your own format type
Screen Prints to PDF, Excel, Word and RTF filesAs viewed on screen - ready for reports,
publicationsFixed formatting on some reports
Generating Reports
1. Go to Report
2. Select Resource Structural Analysis
3. Select Report Type – Population
Screen Tools for Viewing Reports
Tabs
GoTo Page
Page selection
Toggle Group Tree
Zoom
Search
Report Format Selections
Print shortcut
Screen export
Refresh screen (changing between report formats)
DefineObjectives
Perform FullInventory
Perform SampleInventory
Draw RandomSample
Map Sample
Install i-Tree(Desktop andPDA)
ConfigurePDA
Quality Check
Collect Data
Transfer Data toDesktop
Community ForestManagement Plan
OR OR
Interpret Results
Report Results
Define DataInputs
Import AccessDatabase to STRATUM
Start STRATUMProject
Install STRATUM
ChooseInventory Method
Format/Quality Check/
Convert Data to Access
Use ExistingInventory
Management ConsiderationsThe average tree provides over $125 in annual benefits.
Davis’s street trees return $5 for every $1 spent on their management.
Can Davis’s trees sustain this level of benefits?
Management Issues
Needs to achieve:
1. Adequate structural complexity2. Adequate canopy cover3. Adequate pruning & maintenance
Structural Complexity
Plant species that are well adapted and long-lived
Reduce over reliance on too few species
Rejuvenation of areas where even, old-aged stands predominate
Goal:Achieve adequate structural complexity focused on long-term benefitsHow?:
Perpetuate current canopy coverSelective removal and replacement where even,
old-aged stands predominate
Promote additional coverageFill empty spacesPlant large-stature trees where feasibleSelect well adapted and long-lived species
Stable Canopy CoverGoal:Maximize Canopy Cover to offset detrimental effects of hardscape How?:
Improve young tree care
Adjust pruning cycle: 8 yrs to 4-5 yrs
Target species in the poorest health
Pruning & MaintenanceGoal:Improve tree condition to increase benefits provided while reducing liability and long-term maintenance costs
How?:
ConclusionDavis has approx. 24,000 street trees.
Citywide, the publicly managed trees produce $3.1 million in annual benefits for a total cost of $560,000.
Continuing this level of benefits will take strategic program planning:Adequate young tree care.More frequent inspection and pruning.Rejuvenating aging populations.Planting areas void of trees.
STRATUM in PracticeMunicipal BCA
Municipal Tree Resource Assessments/State of the Urban Forest
Community Forest Management PlansCity of Davis
Program AdvocacyCity of N. Vancouver
Street Tree Resource Analysis/State of the Urban Forest Report
Executive SummaryThe Tree ResourceManagement CostsAnnual BenefitsManagement ImplicationsResource complexityResource extentMaintenance needs
Appendices
Davis Community Forest Management Plan
OverviewContext: Existing Conditions History of Tree Management Administration and Management State of the Community Forest
Community Forest Goals, Policies, Standards and ActionsGlossaryAppendices
http://www.cityofdavis.org/pcs/trees/cfmp.cfm
STRATUM & Street Tree Master Plans
Provide the best SERVICE possibleMost efficient use of
resourcesMaximize net benefits of
trees Increase customer
SatisfactionCornerstone of compelling
case for program funding
Identify Funding SourcesTree planting grantsPublic awareness and volunteer training grantsLocal measures Assessment districtsParcel tax
Other revenue sourcesCarbon dioxide emission reduction creditsShade tree programs for energy conservationStormwater managementAir pollution mitigation
Advocacy