FRM 121 Timber Resource Inventory

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Questions and Answers

What parameters are essential for understanding healthy forest dynamics?

  • Pest analysis and disease prevalence
  • Water availability and soil composition
  • Weather patterns and species migration
  • Birth, maturation, and death parameters (correct)

Which factor most significantly influences the budgeting of a forest resource inventory?

  • The type of soil in the area
  • The age of the trees
  • The number of tree species present
  • The size of the forest area (correct)

What determines the periodicity of a forest inventory?

  • The number of trees in the forest
  • The external climatic conditions
  • The purpose of the inventory and management intensity (correct)
  • The geographic location of the forest

Given a circular plot with a radius of 5m, what would the area of the plot be?

<p>$78.5 m^2$ (B)</p> Signup and view all the answers

If the Area Factor ($Af$) is 30ha and the Site Index ($SI$) is 10%, what is the significance of these values in a timber inventory?

<p>They allow estimation of the number of plots needed. (D)</p> Signup and view all the answers

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Study Notes

Timber Resource Inventory

  • Essential for assessing forest dynamics through birth, maturation, and death parameters.
  • Requires data on productivity, including species composition, tree size distribution, and volume increment.
  • Provides the groundwork for effective forest management planning.

Forest Area Influence

  • The size of the forest directly affects the inventory budget.
  • Larger forest areas require more comprehensive resource inventory approaches.

Periodicity of Inventory

  • The timing of forest inventories is contingent on the inventory's objectives and management intensity.
  • High management intensity may necessitate more frequent updates to inventory data.

Circular Plot Sampling

  • Circular plots are used to estimate various forest parameters.
  • Plot specifications include radius (e.g., 5m), site index (e.g., 10%), and total area (e.g., 30ha).
  • The number of plots (Np) can be derived based on the sample area and predetermined plot size.

Example Problem Overview

  • An example problem posed involves understanding sample area and plot number within a specific forest context.
  • Circular plot types vary and are determined by specific area and management needs.

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