Successfully reported this slideshow.
Your SlideShare is downloading. ×

Urban Tree Monitoring: Best Practices for Municipalities and Nonprofits

Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Ad
Upcoming SlideShare
Opening Remarks
Opening Remarks
Loading in …3
×

Check these out next

1 of 38 Ad

More Related Content

More from ColleenSchoch (20)

Recently uploaded (20)

Advertisement

Urban Tree Monitoring: Best Practices for Municipalities and Nonprofits

  1. 1. Urban Tree Monitoring: Best Practices for Municipalities and Non-Profits Partners in Community Forestry November 17th, 2022 Natalie van Doorn, USFS-PSW Albany, CA Kasey Yturralde, District Dept. of Transportation, Washington, D.C. Jeff Ramsey, Portland Parks & Recreation, Portland, OR
  2. 2. • Evaluate planting program performance • Evaluate factors associated with tree mortality, growth, and health • Engage local communities • Manage pruning cycles and tree risk Why monitor? To understand how urban forests change over time
  3. 3. Specifically, field-based monitoring of urban trees…
  4. 4. Evaluating urban trees can be challenging …
  5. 5. • 2 General Technical Reports (GTRs) Resources overview
  6. 6. • 2 General Technical Reports (GTRs) – Urban Tree Monitoring: A Field Guide – Urban Tree Monitoring: A Resource Guide • 5 training videos – Getting Started – Mortality Status – Trunk Diameter – Location Methods – Managing Field Work Resources overview
  7. 7. Planting cohort monitoring Types of monitoring projects
  8. 8. Planting cohort monitoring Multi-age inventory monitoring Types of monitoring projects Pg. 7 of Resource Guide
  9. 9. Tree Monitoring in the District of Columbia • Why monitor? • Urban forestry in the District of Columbia • Our story of monitoring • Challenges • Lessons learned
  10. 10. Why monitor? • Return on investment • Understand why trees die • Improve planting protocols to ensure establishment and survival
  11. 11. Why monitor? • Return on investment • Understand why trees die • Improve planting protocols to ensure establishment and survival https://forestadaptation.org/assess/ecosystem-vulnerability/urban
  12. 12. Direct management • Trees on city property • Public space permits • Emergency response Indirect management • Tree ordinance Urban forest management in the District of Columbia
  13. 13. 8,000 trees planted. 20,000 trees pruned. 4,000 trees removed. 17,000 requests for service.
  14. 14. Research questions and goals • What is our return on investment? • What factors are important in survival of street trees? • Improve survival rates of newly planted trees
  15. 15. Monitoring design Biological factors Built environment Methodology Environmental factors
  16. 16. Monitoring design • Data collection (32 fields) – Built environment – Environmental factors – Biotic factors • Monitor random sample (10%) of trees from previous planting season • Leveraged complete tree inventory • Even-aged cohort Team 1 Team 4 Team 3 Team 2
  17. 17. Survival of newly-planted trees
  18. 18. Putting survival data to use • We consistently found trees with buried root flares 38% 62% Is the root flare visible? No Yes • Consulted the tree survival data when reviewing out tree list
  19. 19. Challenges to data analysis Lagerstroemia indica, 5% Cercis canadensis, 4% Nyssa sylvatica, 4% Quercus bicolor, 3% Prunus virginiana, 3% Cladrastis lutea, 3% Platanus x acerifolia, 3% Pistacia chinensis, 3% Quercus lyrata, 3% Celtis occidentalis, 2% Syringa reticulata, 2% Gymnocladus dioicus, 2% Prunus 'Snow Goose', 2% Ulmus parvifolia, 2% Magnolia virginiana, 2% Quercus phellos, 2% Ulmus americana 'New Species diversity of newly- planted trees, 2014-2020
  20. 20. Challenge and lesson learned: data quality checks Missing data? Mismatched data?
  21. 21. Lessons learned: Reassess your data collection (do you need all that data?) Abnormal foliage Insect sign (foliage)
  22. 22. Lessons learned • Start data quality checks early and revisit • Reassess your data collection • Assessing species performance can be challenging • Have realistic expectations for time expenditures and constraints
  23. 23. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Click to update the date or subtitle – January 1, 2018 Presenter Name, Title Click to update the date or subtitle – January 1, 2018 Presenter Name, Title Click to update the date or subtitle – January 1, 2018 Presenter Name, Title Portland’s Urban Forestry Program • The City’s Arborist - Operations • Tree Permits and Regulation • Science, Outreach, and Planting
  24. 24. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long 2015: New Tree Code, New Funding 2017: Expanded Tree Planting Programs • New funding, need for transparency • New strategy, performance goals • New programs, need for evaluation Tree Monitoring in Portland
  25. 25. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long
  26. 26. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long
  27. 27. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long
  28. 28. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long What you need before you start • Planting records • Method of collection • Defined fields – Level of detail, precision – Acceptable range (what counts as “good” planting depth?) Tree Monitoring in Portland – Program Structure
  29. 29. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Need to know • Survival during establishment period • Trees being planted correctly? • Maintenance and care • Trees given away being planted? Want to know • Species or cultivar performance • Planting stock issues • Growth rates • Long-term survival Tree Monitoring in Portland – Program Structure
  30. 30. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Tree Monitoring in Portland – Program Structure Base Data: Planting Records • Planting date • Planted by • Species • Site information • Planting stock information Need to know • Survival during establishment period • Trees being planted correctly? • Maintenance and care • Trees given away being planted? Want to know • Species or cultivar performance • Planting stock issues • Growth rates • Long-term survival
  31. 31. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Need to know • Survival during establishment period • Trees being planted correctly? • Maintenance and care • Trees given away being planted? Want to know • Species or cultivar performance • Planting stock issues • Growth rates • Long-term survival Tree Monitoring in Portland – Program Structure Monitoring Records • Mortality status • Canopy vigor • Diameter • Diameter height • Planting depth • Mulch present
  32. 32. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Sample vs. Census • Sample – will only know what you build into your study at the beginning • Census – much more information, only works for smaller programs How Many Trees Can You Monitor? Trees monitored on year 1/2/5/10 schedule
  33. 33. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long What Will Affect Mortality Most? Street Trees Park Trees Yard Trees
  34. 34. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long • 8,000 monitoring visits since 2018 • 3-4% annual mortality • Surprising species! • Planting depth issues Findings
  35. 35. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long 2021 Heat Dome – Ouch!
  36. 36. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Improved Programs
  37. 37. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Lesson #1 : You can’t know everything! Lesson #2: Field work is only half of your program Lesson #3: Report your findings! Lessons Learned
  38. 38. PORTLANDPARKS.ORG | Commissioner Carmen Rubio | Director Adena Long Questions and Discussion Kasey Yturralde, PhD Forest Health and Community Outreach Specialist Urban Forestry Division District Dept. of Transportation Washington, D.C. kasey.yturralde@dc.gov Natalie S. van Doorn, PhD Research Urban Ecologist USFS Pacific Southwest Research Station Albany, CA natalie.vandoorn@usda.gov Jeff Ramsey Science and Policy Specialist Portland Parks & Recreation Urban Forestry Division Portland, OR jeff.ramsey@portlandoregon.gov

×