Rogue Valley LiDAR Mid Rogue River, South Roseburg, Rock Cr, Upper Coquille Flown in 2012 ~1.4 Million Acres ~650K BLM/ODF.

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Presentation transcript:

Rogue Valley LiDAR Mid Rogue River, South Roseburg, Rock Cr, Upper Coquille Flown in 2012 ~1.4 Million Acres ~650K BLM/ODF

LiDAR Source Reference Material Rogue Valley BLM Stratified LIDAR Sample Plot Methodology, March, 2013 Rogue Valley LIDAR Inventory Plot Establishment, February 24, 2014

LiDAR Bins Pixelated to 75 Feet Correlation Plot Tree Data BLM FOI-VEG Classified Forest Stands

Principle Components Analysis Bin Development by Significance 1 st Component 80 TH Percentile Height 80% of LiDAR height returns below this point. Six fixed width (30 ft) classes Highly accurate for height prediction. Cover % Three equal-width density classes Low (1), Moderate (2), High (3)

18 Bins (Strata)

Bin Statistics

Correlation Plots Primary Plots (blue) Alternate Plots (red)

Correlation Plot Tree Data 2 ND Component 240 Plots ~13 Plots per Bin Tree List Generated per Bin

Correlation Plot Data EcoSurvey Avg Stand Metrics per Bin

LiDAR Veg Height Color Blend Provides Visual Contrast One Meter Pixels

LiDAR & BLM FOI-VEG Polygons 3 rd Component BLM Forest Stand Polygons

LiDAR & BLM FOI-VEG Polygons Bin Pixels Intersected with Forest Stand

LiDAR & BLM FOI-VEG Polygons Bin Weighted Avg per Forest Stand

LiDAR & BLM FOI-VEG Polygons Bin Weighted Avg per Forest Stand

LiDAR Derived Stand Metrics Weighted Average of the Averages

LiDAR Derived Stand Metrics Does not Give Species Mix, Only Stand Metrics Species Already Part of BLM’s Forest Stand Description Initial Quick Guide for the Field Forester

Comparisons with Stand Exams Preliminary comparisons on 80 stands Inconclusive at this point Need more testing & refinement

GIS Tools to Summarize Stand Metrics by Unit John Guetterman GIS Lead Coos Bay BLM

Summarizing Stand Metrics by Unit

Output = Area-weighted average by polygon (harvest unit or whatever?)

Summarizing PNW Stand Metrics by Unit

Output = Area-weighted average by polygon (harvest unit or whatever?) Area-weighted Averages Unit # BA CanopyBaseHt CrownLen HtLoreysLive HtTop40 QMD TPA VolCuft , ,230

LiDAR Stand Metrics QUESTIONS?