How to determine site index in silviculture

Last updated on January 5, 2024

Background information 

Target audience

The target audience for this course includes silviculture surveyors, contract administrators, and planners. Participants should have a working knowledge of silviculture survey systems and plans. This course is in PDF format, condensed from a one day workshop, 


The purpose of this course is to improve forest management in British Columbia by improving the ability of silviculture surveyors to estimate site index — one of the key variables that needs to be considered for effective forest management decision making.

By the end of this course, participants should be able to:

  • Understand the purpose of estimating site index.
  • Know which method of estimating site index is best to use for each species and site.
  • Collect site index data that conforms to provincial standards.

Equipment required

  • Pencil/pen  
  • Personal field gear (Cruiser's vest, rain gear, boots, etc.) plus whatever you can bring from the following list:
  • Increment borer
  • 5.64 m plot cord
  • Folding hand saw
  • Carpenter's measuring tape
  • Field book
  • DBH tape
  • Suunto
  • 30 m tape or loggers chain
  • Hand lens
  • Calculator
  • Pocket knife