The Mature Tree Preservation Model

(MTPM)

What is the Mature Tree Preservation Model?

Most arborists give you an opinion. Wyatt gives you a determination. The Mature Tree Preservation Model (MTPM) is a proprietary six-domain assessment framework that evaluates whether long-term tree retention is biologically sustainable and legally defensible. Every domain is documented, classified, and written to hold up in court, permit review, and deposition.

Physiological Capacity

  • Crown vitality
  • Decay progression
  • Compartmentalization response

Structural Architecture

  • Codominant unions
  • Attachment integrity
  • Load path continuity

Root-Zone Integrity

  • Soil compaction
  • CRZ disturbance
  • Infrastructure conflicts

Environmental and Anthropogenic Stressors

  • Construction proximity
  • Irrigation shifts
  • Wind exposure

Intervention Feasibility

  • Reduction thresholds
  • Pruning limits
  • Diminishing returns

Projected Service Life

  • Longevity horizon
  • Risk trajectory
  • Cost-benefit analysis

Before You Cut, Buy, Build, or Plant — Talk to Wyatt

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Thirty years of field experience behind every assessment and opinion.

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Structured methodology that holds up in permits, disputes, and depositions.

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The technical authority tree companies, developers, and attorneys rely on.