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Urban Forest Management Plan Grant Program
March 22, 2012California Urban Forest Council
555 NorthgateSan Rafael, CA
Workshop Two
Funded by: US Forest Service Cal Fire
Today’s Agenda
9:30 – 10:30 Status of the Urban ForestReview of Assignments
10:30 – 11 Understanding your Tree Inventory 11 – 11:15 BREAK 11:15 – noon Team Breakouts Noon – 12:45 LUNCH 12:45 – 1:45 Team Presentations and Feedback
Vision Statement
Vision Sustainable Riverside maximizes energy
efficiency and makes the most efficient use of resources, and minimizes negative environmental consequences. Above all, it means meeting the needs of its citizens while not degrading or destroying the natural and constructed systems that will sustain future generations.
History
What is the historical perspective of your project?
Were you able to identify trends, issues or concerns through this search?
What do you have?
Share your list of existing resources?
BMP’s, Ordinances, Policies, Practices (this the way we have always done it)
Have you been able to evaluate them?
General Principles of Management
What do you have?
What do you want?
How do you get what you want?
Implementation Plan
Are you getting what you want?
Understanding Your Tree Inventory
Now you know what you have. What do you do with it?
What are the issues?
What are the needs?
Issues and Needs
Tree Trimming
Hazard Removal
Tree Removal and Replacement Program
Planting Program
Pest and Diseases Program
City of Glendora (DBH)
Vacant Sites 2594 19% 0 – 6 inches 2899 21% 7 – 12 inches 2381 17% 13 – 18 inches 3535
25.5% 19 – 24 inches 1497 11% 25 – 30 inches 628 4.5% 30 + inches 347 2.5%
City of Glendora (Height)
Vacant Sites 2609 19% 1 – 15 feet 3503 25% 16 – 30 feet 5400 39% 31 to 45 feet 1243 9% 46 to 60 feet 751 5.4% 61 + feet 375 3%
City of Glendora (Species)
Lagerstroemia (Crape Myrtle) 2243 20% Quercus agrifolia (Live Oak) 651 6% Liquidambar (Sweetgum) 512 4.5% Magnolia 508 4.5% Ficus ‘Nitida’ 476 4.2% Washingtonia Fan Palms 800 7% Cupaniopsis (Carrotwood) 346 3% Eriobotrya (Loquat) 325 2.9% Lophostemon (Brisbane Box) 283 2.5% Other 5124 45%
City of Glendora (Maintenance)
Grid Trim 10,920 79% Trim Diseased or Declining 60 .4% Trim Poorly Structured 33 .24% Plant 2,594 19% Removals
Dead 69 .5% Diseased 151 1% Poorly Structured 36 .26% Spacing Criteria 3 .02% Stumps 15 .11%
City of Glendora (Value)
Lagerstroemia (Crape Myrtle) 3.05 mil 20% Quercus agrifolia (Live Oak) 5.8 mil 6% Liquidambar (Sweetgum) 1.9 mil 4.5% Magnolia 2.4 mil 4.5% Ficus ‘Nitida’ 1.8 mil 4.2% Washingtonia Fan Palms 1.39 mil 7% Cupaniopsis (Carrotwood) 1.05 mil 3% Eriobotrya (Loquat) .36 mil 2.9% Lophostemon (Brisbane Box) .83 mil 2.5% Other 18 mil 45% Total 36.85 million
City of Glendora (Maintenance)
Grid Trim 10,920 79%
At say $75 per tree budget of $819,000
Five year cycle $163.800
Tree Trimming
What is the appropriate Trimming Cycle?
Do you trim based on grids or needs of the tree?
Pros and Cons of each
Grid Trimming Pros & Cons
Cost Effective? Easy to Manage Stable Costs
Some trees over pruned others under pruned
More time to Manage Costs are higher
City of Glendora (Maintenance)
Planting needs 2594 vacancies at $100 per tree
Total cost $259,400 plus watering and maintenance.
Over how many years!
Missing is size of planting site to determine replacement trees.
City of Glendora (Maintenance)
Removals Dead 69 Diseased or Declining 151 Poor Structure 36 Poor Spacing 3 Stumps 15