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Unraveling Stand Density: New Insights and Definitions on Tree Occupancy

Understand the quantitative measure of crowding in tree stands known as stand density and explore its applications in growth distribution and light management. While empirical verification of theoretical relationships faces challenges due to species, age, and site quality interactions, this seminar aims to present a refined stand density definition and equilibrium conditions for size-density relations.

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Unraveling Stand Density: New Insights and Definitions on Tree Occupancy

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  1. What is stand density and where does it come from? New answers for an old question

  2. Stand density • Quantitative measure of tree occupancy • Measure of crowding in tree stands

  3. Applications-Distribute growth

  4. Applications-Manage light penetration

  5. Concept of stand density based on size-density relations

  6. Application is very hypothetical • Experience is mostly consistent with the basic principles • Interaction between species, age, and site quality hamper efforts to empirically verify the theoretical relationships • The underlying basis of stand density – the systematic exchange of tree density for tree size at equilibrium - still lacks a consensus • “Equilibrium” is also an abstract concept

  7. Seminar objective • To walk through a concept map that represents a word model that describes the underpinnings of size-density relationships • Propose a refined definition of stand density • Present a concrete definition of equilibrium conditions for size-density relations

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