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Technology Transfer Ideas from the Private Sector John Paul McTague Rayonier, Inc. NCASI – Biometrics Working Group, Chairman SAF National FIA User Group.

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Presentation on theme: "Technology Transfer Ideas from the Private Sector John Paul McTague Rayonier, Inc. NCASI – Biometrics Working Group, Chairman SAF National FIA User Group."— Presentation transcript:

1 Technology Transfer Ideas from the Private Sector John Paul McTague Rayonier, Inc. NCASI – Biometrics Working Group, Chairman SAF National FIA User Group Meeting March 9, 2011 Sacramento, CA

2 Three goals of Precision Forestry and individual stem mapping  Using geospatial information to assist forest management and planning  Site specific silvicultural operations (site prep, regeneration, stand mgt)  Efficient harvesting practices (merchandizing and transportation systems)

3 Auburn Univ. is researching new techniques to create tree volume maps based on ground- based and remote sensing LiDAR data

4 Value map based on sensor measurements mounted on a tree feller

5 The UW Precision Forestry Cooperative states that ‘spatial & temporal resolution (of FIA plots) is inadequate for answering important questions’

6 Remote sensing LiDAR and stem mapping of Precision Forestry Coop

7 What are the problems in matching individual tree crowns of remote sensing data and ground-based stem maps? Individual stand on LiDAR image after tree polygon creation. A polygon now surrounds every visible tree crown. Sample Frame - Ground or Map? (rarely will the two coincide)

8 As reported by J. Flewelling in 2006, 81% of the individual tree crowns are the same as interpreted crowns

9 Ground-based mapping with 3-D laser scanning

10 Ground-based mapping with 3-D laser scanning (New Zealand and Ireland) The link between these two operations is not widely divulged

11 Murphy (2008) reports that hidden trees and false positive trees equal ≈ 12% from a single point Scanners cost $40,000 and can complete a 360° sweep in 80 sec.

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13 The stem measurements are not error free Arc centers are estimated The 10 th percentile of the cloud data estimates upper-stem dob well

14 Other ground-based mapping approaches

15 Other ground-based mapping approaches (photographs in New Brunswick)

16 Other ground-based mapping approaches (Haglöf Postex sonic measurements) Can be used in stands with dense understory vegetation

17 Interior West – FIA has experience with stem mapping

18 The inference appears limited to estimates of canopy cover

19 Terrestrial laser scanning is expensive; and reliance upon aerial LiDAR is still imperative There is tremendous room for improvement in the matching algorithms and techniques

20 Potential role for FIA plots? Create a pilot project to perfect the techniques of matching ground and aerial LiDAR Stem mapped FIA plots

21 Create value contour maps at macro level (county – state) Stem maps and better merchandising into multiple products can improve values by $160/acre

22 Role of terrestrial laser scanning  Equipment similar to the FARO scanner is probably not needed for FIA plots  A single upper-stem measurement however could be used to localize a taper function for each measured tree, improving immensely the ability to merchandize and correctly value a tree into multiple products


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