GTBOP Moodle Matching Exercises

Best Management Practices for Urban Trees — Dr. Ryan Klein

January 15, 2026 | Green & Commercial Series


SOURCE CHAIN OF CUSTODY

Source documents:

  • Corrected SRT transcript (Stage 1): GTBOP_Transcript_RyanKlein_TreeBMPs.srt (621 blocks)
  • Archive Package (Stage 2): GTBOP_Archive_Summary_2026-01-15_UrbanTreeBMPs.md

All terms, definitions, and relationships derived exclusively from the presentation.


Matching Exercise 1: Planting Site Requirements and Design Solutions

Timestamp Reference: 19:01 – 25:14 (primary coverage area) Type: Timing-Practice

Instructions: Match each site design concept or measurement in Column A with its correct description or specification from Dr. Klein's presentation in Column B. Column B contains two extra items.

# Column A Column B
1 Live oak planting strip width (69" DBH) a) Four feet past the visible trunk flare
2 Laurel oak planting strip width (54" DBH) b) 3 feet
3 Crape myrtle planting strip width (8" caliper) c) Allow roots to extend both directions toward neighboring trees
4 Zone of rapid taper extent d) 16 feet
5 Trunk flare planting space formula e) 14 feet
6 Planting strip (best case root benefit) f) Trunk flare diameter plus four feet on each side
7 Suspended sidewalks example city g) Austin, Texas
8 Silva Cells h) 8 feet
i) Allow more root growth below surface materials
j) Structural soils mixed with organic matter

Answer Key: 1 → d, 2 → e, 3 → b, 4 → a, 5 → f, 6 → c, 7 → g, 8 → i

Source in transcript:

  • Planting strip widths: ~23:07–23:39 (Koeser's research on Tampa street trees)
  • Zone of rapid taper: ~22:25 (four feet past visible trunk flare)
  • Planting space formula: ~23:00 (trunk flare diameter + 4 ft each side)
  • Planting strip root benefit: ~19:01 (roots extending both directions)
  • Austin suspended sidewalks: ~24:55–25:07
  • Silva Cells: ~24:26–24:46 (allowing root growth, preventing surface damage)

Matching Exercise 2: Root Defects and Planting Procedures

Timestamp Reference: 34:00 – 40:47 (primary coverage area) Type: Timing-Practice

Instructions: Match each planting practice or root issue in Column A with its correct description or recommendation from Dr. Klein's presentation in Column B. Column B contains two extra items.

# Column A Column B
1 Root ball shaving a) Can girdle the trunk if not removed; treat same as synthetic burlap
2 Radial slicing b) Preferred root defect correction — remove a couple inches from outside and bottom
3 Volcano mulching c) Plant a couple of inches above grade to account for settling
4 Proper planting depth d) Results from trees left in containers too long; roots follow container wall shape
5 Container root imprints e) Can promote root defects as mulch breaks down into soil against the trunk
6 Synthetic materials (burlap, twine) f) Better than doing nothing, but may cut a circling root where it continues the circle
7 Soil ring around root ball g) Retains moisture from rain or irrigation over the root zone
8 Girdling root consequence h) Dig the hole three times wider than the root ball
i) Tree can die four to five years after planting from being choked out
j) Apply 4–6 inches for maximum weed suppression

Answer Key: 1 → b, 2 → f, 3 → e, 4 → c, 5 → d, 6 → a, 7 → g, 8 → i

Source in transcript:

  • Root ball shaving: ~39:03–39:37 (preferred method, remove outside and bottom)
  • Radial slicing: ~39:20–39:37 (may cut at a point where circling continues)
  • Volcano mulching: ~40:40–40:47 (root defects from mulch breakdown)
  • Planting depth: ~36:01–36:16 (couple inches above grade, settling)
  • Container root imprints: ~37:17–37:39 (left in container too long)
  • Synthetic materials: ~38:44–38:49 (remove to prevent girdling)
  • Soil ring: ~39:59–40:05 (moisture retention over root ball)
  • Girdling root consequence: ~37:47–37:58 (death four to five years out)

Matching Exercise 3: Tree Management Across Life Stages

Timestamp Reference: 41:03 – 47:15 (primary coverage area) Type: Timing-Practice

Instructions: Match each tree management concept or term in Column A with its correct description from Dr. Klein's presentation in Column B. Column B contains one extra item.

# Column A Column B
1 Structural pruning goal (young trees) a) Mostly heartwood; cannot respond to large wounds as effectively
2 Mature tree tissue composition b) Reduce competition with the central leader and space scaffolding branches
3 Pruning wound size (young trees) c) Two and a half day course in Florida for standardized pruning communication
4 Mature tree pruning focus d) Small half-inch cuts that set the tree up for two to three years
5 Bark inclusion e) Manage loading on the exterior canopy; cuts at three to five inches
6 ANSI A300 f) Failure point where two stems rub with no connective tissue between them
7 Prescription pruning qualification g) Pruning standards — guidance for best practices in tree care operations
8 Three phases of tree life h) Growth phase, maintenance phase, death phase with natural retrenchment
i) Annual inspection required by state law for all municipal trees

Answer Key: 1 → b, 2 → a, 3 → d, 4 → e, 5 → f, 6 → g, 7 → c, 8 → h

Source in transcript:

  • Structural pruning goal: ~41:28–41:50 (dominant leader, scaffolding branches, reducing competition)
  • Mature tissue composition: ~45:47–45:51 (mostly heartwood vs. younger sapwood)
  • Pruning wound size: ~41:51–41:59 (half-inch cuts, two to three year intervals)
  • Mature pruning focus: ~46:08–46:14 (exterior canopy, small cuts)
  • Bark inclusion: ~46:22–46:32 (no connective tissue, two stems rubbing)
  • ANSI A300: ~47:03 (pruning standards reference)
  • Prescription pruning: ~47:03–47:08 (two and a half day course)
  • Three phases: ~46:06–46:07 (growth, maintenance, death/retrenchment)

VERIFICATION CHECKLIST

  • [x] All terms, definitions, and relationships from the presentation only
  • [x] Timestamp references verified against corrected transcript
  • [x] No external or textbook knowledge required
  • [x] Matching items unambiguous based on presentation content
  • [x] 1–2 plausible distractors per exercise (extra items in Column B)
  • [x] Three exercises covering distinct topic areas across the presentation
  • [x] Exercise 1: 8 pairs + 2 distractors (site design, early-mid presentation)
  • [x] Exercise 2: 8 pairs + 2 distractors (planting procedures, mid presentation)
  • [x] Exercise 3: 8 pairs + 1 distractor (pruning/management, late presentation)

Generated for UGA Center for Urban Agriculture / GTBOP Moodle Course Activities