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Application of Unmanned Aerial Systems (UAS) to Quantify Biomass, Stem Volume, and Basal Area in a Mature Norway Spruce (Picea Abies) Plantation in Central New York

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Application of Unmanned Aerial Systems (UAS) to Quantify Biomass, Stem Volume, and Basal Area in a Mature Norway Spruce (Picea Abies) Plantation in Central New York SUNY College of Environmental Science and Forestry Digital Commons @ ESF Dissertations and Theses Spring 4-6-2018 Application of Unmanned Aerial Systems (UAS) to Quantify Biomass, Stem Volume, and Basal Area in a Mature Norway Spruce (Picea Abies) Plantation in Central New York Daniel Tinklepaugh [email protected] Follow this and additional works at: https://digitalcommons.esf.edu/etds Recommended Citation Tinklepaugh, Daniel, "Application of Unmanned Aerial Systems (UAS) to Quantify Biomass, Stem Volume, and Basal Area in a Mature Norway Spruce (Picea Abies) Plantation in Central New York" (2018). Dissertations and Theses. 44. https://digitalcommons.esf.edu/etds/44 This Open Access Thesis is brought to you for free and open access by Digital Commons @ ESF. It has been accepted for inclusion in Dissertations and Theses by an authorized administrator of Digital Commons @ ESF. For more information, please contact [email protected], [email protected]. APPLICATION OF UNMANNED AERIAL SYSTEMS (UAS) TO QUANTIFY BIOMASS, STEM VOLUME, AND BASAL AREA IN A MATURE NORWAY SPRUCE (PICEA ABIES) PLANTATION IN CENTRAL NEW YORK by Daniel Tinklepaugh A thesis submitted in partial fulfillment of the requirements for the Master of Science Degree State University of New York College of Environmental Science and Forestry Syracuse, New York April 2018 Division of Environmental Science Approved by: Eddie Bevilacqua, Major Professor Avik P. Chatterjee, Chair Examining Committee Russell Briggs, Director, Division of Environmental Science S. Scott Shannon, Dean, The Graduate School © 2018 Copyright D. Tinklepaugh All rights reserved ACKNOWLEDGEMENTS I’d like to thank those who have helped me during my time as a candidate and ultimate recipient of a Master’s Degree in Environmental Sciences during the past two years. To my advisor Dr. Eddie Bevilacqua, I am grateful for your ability to advise me on the proper course towards graduation while continuing his own work with classes, research, and advising other students. Your willingness to see value in my technical and academic skills is what enabled me to begin my work towards a higher degree. A sincere thank you to Paul Szemkow and his help in acquiring the specialized tools and equipment that were critical to the success of my work. To my temporary field assistants Joshua Ellison and Samuel Peterson, thank you for spending time gathering data and preparing the study area for many days at a time. Your company was consistently enjoyable and productive. Lastly, to my parents Dr. Pamela Cook and Dr. Mark Tinklepaugh, thank you for encouraging me to continue my work and supporting me as only parents can do. iii TABLE OF CONTENTS LIST OF FIGURES ....................................................................................................................vi LIST OF TABLES .................................................................................................................... viii Terms and Definitions ........................................................................................................... ix Abstract ....................................................................................................................... x CHAPTER 1. Introduction .................................................................................................... 1 1.1. Importance of Quantifying Biomass ................................................................................ 1 1.2. Field Methods for Quantifying Biomass .......................................................................... 2 1.3. Allometric Models ............................................................................................................ 3 1.4. Remote Sensing in Forest Inventory ................................................................................ 3 1.4.1. Historical Role of Aerial Photographs in Forest Inventories ................................................. 3 1.4.2. Potential Benefits of Unmanned Aerial Systems over Airborne Remote Sensing ................ 4 1.4.3. Short History of Environmental Application of UAS ............................................................. 5 1.4.4. Typical UAS Platforms ........................................................................................................... 6 1.4.5. Other Considerations – FAA Regulations .............................................................................. 6 CHAPTER 2. Goals and Objectives ....................................................................................... 8 CHAPTER 3. Methods ......................................................................................................... 9 3.1. Field Site ........................................................................................................................... 9 3.1.1. Early Use of INTERPNT ........................................................................................................ 11 3.1.2. Laying Out Plots .................................................................................................................. 12 3.1.4. Tree Volume & Biomass Estimates ..................................................................................... 15 3.2. Unmanned Aerial System .............................................................................................. 17 3.2.1. Platform .............................................................................................................................. 17 3.2.2. Payload ................................................................................................................................ 17 3.2.3. Mission Planning ................................................................................................................. 17 3.2.4. Mission Summaries ............................................................................................................. 20 3.2.5. Mosaic Creation .................................................................................................................. 20 3.2.6. Photogrammetric Analysis for Creating 3D Point Cloud from Stereo Images to Estimate Crown Volume .................................................................................................................... 22 3.2.7. Producing a Mosaic ............................................................................................................. 23 3.3. Photo-interpretation of Tree Counts from Mosaic ........................................................ 23 3.4. Thiessen Polygon Generation ........................................................................................ 25 iv 3.4.1. Correlation and Regression Analysis ................................................................................... 25 CHAPTER 4. Results .......................................................................................................... 26 4.1. Tree List and Size-Class Distribution – Summary by Plots ............................................. 26 4.1.1. Basal Area, Volume, and Biomass by plot ........................................................................... 27 4.1.2. Thiessen Polygon Area ........................................................................................................ 28 4.2. Mosaic ............................................................................................................................ 28 4.2.1. Individual Tree Size ............................................................................................................. 30 4.2.2. Relationship between field and photo-interpreted estimates of tree counts per plot ...... 34 4.2.3. Relationship between field-based mean tree basal area and photo-based mean Thiessen polygon area per plot ......................................................................................................... 36 4.2.4. Relationship between field-based mean tree volume and photo-based mean Thiessen polygon area per plot ......................................................................................................... 36 4.2.5. Relationship between field-based mean tree biomass and photo-based mean Thiessen polygon area per plot ......................................................................................................... 37 CHAPTER 5. Discussion ..................................................................................................... 39 5.1. Photogrammetric Analysis of UAS Imagery ................................................................... 39 5.1.1. Various Software Approaches Tried ................................................................................... 39 5.1.2. Difficulty Creating Point Cloud ............................................................................................ 39 5.1.3. Difficulty in Creating Mosaic ............................................................................................... 40 5.2. Individual Tree Extraction from Imagery ....................................................................... 43 5.3. Removing Border Plots from Analyses .......................................................................... 43 5.4. Comparing Stem Volume Estimation between European and American Allometric Equations ....................................................................................................................... 44 CHAPTER 6. Conclusions ..................................................................................................
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