Cloquet Forestry Center Continuous Forest Inventory Update for 2014 - Staff Paper Series No. 243 - Research report

Sep 10, 2026

The Cloquet Forestry Center (CFC) is a University of Minnesota field research and instructional station. This report compiles results from the summer 2014 re-measurement of 402 permanent plots, including their use for research and forest management. Each plot covers 1/7 acre and was originally installed in 1959, with subsequent re-measurements in multiple decades, plus three additional plots in 2014 to reach 405 total. It also documents data organization and analysis.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages53

Reading Time2 h 14 min

AccessFree to download

Acknowledgements

Abstract

Introduction

Description of the CFC and CFI

Data Collection, Organization and Analysis

Analysis Results for 2014

CFI Database User Notes

Literature Cited and References

Appendix 1: Field data entry procedures with Microsoft Tablet

Appendix 2: Access database forms

Appendix 3: Queries and tables used in the CFC-CFI Access database

Appendix 4: Site index, tree height, volume and biomass equations

Appendix 5: R plot map example

Appendix 6: Damage codes and tree classes withheld from calculations

Appendix 7: Summary stand and stock tables

Appendix 8: Forest covertype classification system

Cloquet Forestry Center Continuous Forest Inventory Update for 2014 by Maryada Shrestha, David C. Wilson, John M. Zobel and Alan R. Ek December 2016 Staff Paper Series No. 243 Department of Forest Resources College of Food, Agricultural and Natural Resource Sciences University of Minnesota, Saint Paul, MN For more information about the Department of Forest Resources and its teaching, research, and outreach programs, contact the department at: Department of Forest Resources University of Minnesota 115 Green Hall 1530 Cleveland Avenue North St. Paul, MN 55108-6112 Ph: 612.624.3400 Fax: 612.625.5212 Email: [forest.resources@umn.edu](forest.resources@umn.edu) [http://www.forestry.umn.edu/publications/staffpapers/index.html](http://www.forestry.umn.edu/publications/staffpapers/index.html)[ ](http://www.forestry.umn.edu/publications/staffpapers/index.html)and see also [http://iic.umn.edu/](http://iic.umn.edu/) The University of Minnesota is committed to the policy that all persons shall have equal access to its programs, facilities, and employment without regard to race, color, creed, religion, national origin, sex, age, marital status, disability, public assistance status, veteran status, or sexual orientation. ACKNOWLEDGEMENTS This research was funded by the University of Minnesota Grant-in-Aid program in the Office of the Vice President for Research, the Interagency Information Cooperative and the Department of Forest Resources, and the Minnesota Agricultural Experiment Station (MAES) under MAES Project MIN 42-019. The authors thank Dr. Linda M. Nagel, Michael Reinikainen and the staff at the Cloquet Forestry Center (CFC) for their especially helpful assistance with planning and logistics for field work, and Dr. Anthony W. D’Amato for his assistance in enhancing plot measurement procedures. We also want to thank our field crew who worked very creatively and diligently in plot location and data collection: Emmie Peters, Kylee Berger, Thomas Burke and Paul Swanson. Contents LIST OF FIGURES AND TABLES ................................................................................................................. ii ABSTRACT.................................................................................................................................................... iv INTRODUCTION............................................................................................................................................. 1 DESCRIPTION OF THE CFC AND CFI ......................................................................................................... 1 DATA COLLECTION, ORGANIZATION AND ANALYSIS............................................................................4 ANALYSIS RESULTS FOR 2014 .................................................................................................................. 8 CFI DATABASE USER NOTES ................................................................................................................... 19 LITERATURE CITED AND REFERENCES .................................................................................................20 Appendix 1: Field data entry procedures with Microsoft Tablet ............................................................23 Appendix 2: Access database forms ........................................................................................................24 Appendix 3: Queries and tables used in the CFC-CFI Access database ..............................................27 Appendix 4: Site index, tree height, volume and biomass equations ...................................................34 Appendix 5: R plot map example ..............................................................................................................36 Appendix 6: Damage codes and tree classes withheld from calculations ...........................................38 Appendix 7: Summary stand and stoc

FAQs

What does the 2014 update cover in this report?

It compiles results from the summer 2014 re-measurement of 402 permanent plots at the Cloquet Forestry Center, including the additions that bring the total to 405 plots.

How large are the permanent field plots used for the inventory?

Each plot is 1/7 acre in size.

When were the plots originally installed and how often were they re-measured?

The plots were installed and first measured in 1959, then re-measured in 1964, 1969, 1976, 1982, 1990, 2000, and again in 2014.

Sep 10, 2026

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