Forestry applications using LiDAR
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This document discusses the use of LiDAR data to create high resolution forestry maps of Catalonia. It describes existing forestry maps and datasets like land cover maps and forest inventory plots. The workflow involves analyzing LiDAR point cloud data, relating LiDAR metrics to field data using statistical models, and applying the models to generate 20m resolution maps of various biophysical forest variables. These maps can be used for forest management and planning. Future work includes updating the maps using new LiDAR and inventory data and expanding to other land cover types.
Forestry applications using LiDAR
- 1. Forestry applications using LiDAR Ariadna Just(1), Mariló Cabré(1), Antonio Magariños(1), Jordi Vayreda(2) (1) ICGC (2)CREAF
- 2. 41% 15% 30% 6% 8% Soil orders in Catalonia 2 56% Forest INSPIRE Conference 2016 Barcelona, 29th September, 2016 Forest presence
- 3. 3 INSPIRE Conference 2016 Barcelona, 29th September, 2016 Source: BIOLULIA
- 4. Existing forestry maps 4 INSPIRE Conference 2016 Barcelona, 29th September, 2016 Forest land cover LAND COVER MAP OF CATALONIA: MCSC SPANISH FOREST MAP: MFE50 OTHER LAND COVER MAPS: - CTFC: Map of Pure and mixed forest formations of Catalonia Resolution: 2m Coverage: Catalonia Epoch represented: 2009 Distributor: CREAF, Ecological and Forestry Applications Research Centre Resolution: 1:50000 Coverage: Spain Epoch represented: 1997-2006 Distributor: MAGRAMA. Ministry of Agriculture, food and environment.
- 5. Existing forestry maps 5 INSPIRE Conference 2016 Barcelona, 26th– 27th September, 2016 Forest structure 0 (t/ha) 1-10 (t/ha) 10-20 (t/ha) 20-30 (t/ha) 30-40 (t/ha) 40-50 (t/ha) 50-60 (t/ha) 60-70 (t/ha) >=70 (t/ha) Total aerial carbon % Trees in Catalonia Bark volume growth Source: SIBosC National forest inventory: IFN3 (2000-2001 ) Source: SIBosC Source: Vangdata Applications: Other forest inventories
- 6. ICGC. Cartography of Catalonia 6 INSPIRE Conference 2016 Barcelona, 29th September, 2016 Topographic maps: From 1:5000 to 1:50000 over Catalonia 1:1000 in urban areas Ortophotos: 25cm, 50cm, 2.5m over Catalonia 10cm on the coast Geological cartography Digital Terrain Models Existing cartography
- 7. Medium Height Foliage Biomass Forest Canopy Cover 7 LiDAR Forestry maps High resolution forestry maps: mvba20m Bark volume Total Aerial Biomass Breast Height Total Aerial Carbon Basal Area INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 8. 8 LiDAR Forestry maps High resolution forestry maps: mvba20m Plots of forest inventory Land Cover Map LiDAR data Cartography of Catalonia forest biophysical variables (mvba20m) Total aerial carbon (t C/ha) Total aerial biomass (t/ha) Bark volume (m3/ha) Basal area (m2/ha) Foliage biomass (t/ha) Diameter at breast height (cm) Forest canopy cover (%) Medium height (m) INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 9. 9 LiDAR Forestry maps High resolution forestry maps: mvba20m Main characteristics: Resolution: 20m Coverage: Catalonia woodland Epoch represented: 2005 Distribution: WMS OGC service http://geoserveis.icc.cat/icgc_varbiofisiques_forest/wms/service? Download as GeoTIFF format: http://www.icc.cat/vissir/ or http://www.icc.cat/appdownloads/index.html?c=dlfxmvba More info: http://www.icgc.cat/Administracio-i-empresa/Descarregues/Capes-de-geoinformacio/Mapes-de-variables-biofisiques- de-l-arbrat-de-Catalunya INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 10. 10 LiDAR Forestry maps High resolution forestry maps: mvba20m Comparison of different variables in La Garrotxa Volcanic Zone Natural Park INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 11. 11 LiDAR Forestry maps High resolution forestry maps: mvba20m Total Aerial Carbon (t C/ha)Total Aerial Carbon (t C/ha) Resolution: 1000x1000m Resolution: 20x20m Before 2016 Nowadays Resolution 2500 larger than the traditional forest inventories INSPIRE Conference 2016 Barcelona, 29th September, 2016 Source: CREAF
- 12. LiDAR Forestry maps 12 Initial data LiDAR metrics Model adjustment Product Generation Workflow LiDAR pointLiDAR point LiDAR dataLiDAR data Land cover mapLand cover map Forest inventoryForest inventory LiDAR point statistics Land cover map Forest inventory cloud statisticscloud statistics Statistic modelsStatistic models Cover mapsCover maps INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 13. LiDAR Forestry maps 13 Workflow – Initial data LiDAR data capture LiDAR data processing Trajectory calculation Sensor calibration Point cloud generation Point cloud QC Strip adjustment Adjustment QC Automatic classification Editing (Manual classification) LiDAR data distribution Flight dates: 2008 - 2011 Sensor: ALS50 II Leica Point density: 0.5pt/m 2 Format: LAS & LAZ 1.2 Classes: Ground, vegetation, building, towers, wires, noise, low points, air points Download: http://www.icgc.cat/en/Public- Administration-and- Enterprises/Downloads/Eleva tion/Dades-lidar2 LiDARCAT INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 14. LiDAR Forestry maps 14 Workflow – Initial data Land Cover Map of Catalonia Resolution: 2m Epoch represented: 2009 Coverage: Catalonia Distributor: CREAF, Ecological and Forestry Applications Research Centre Plots of forest inventory IFN3, 3rd National Forest Inventory (2000-2001) CREAF forest inventories (2004, 2007, 2008, 2010, 2011) INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 15. LiDAR Forestry maps 15 Initial data LiDAR metrics Model adjustment Product Generation Workflow LiDAR pointLiDAR point LiDAR dataLiDAR data Land cover mapLand cover map Forest inventoryForest inventory LiDAR point statistics Land cover map Forest inventory cloud statisticscloud statistics Statistic modelsStatistic models Cover mapsCover maps INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 16. LiDAR Forestry Applications 16 Workflow – LiDAR metrics OH all point cloud – OH TIN terrain = H above ground From 3m Orthometric Height Height above ground INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 17. LiDAR Forestry maps 17 Initial data LiDAR metrics Model adjustment Product Generation Workflow LiDAR pointLiDAR point LiDAR dataLiDAR data Land cover mapLand cover map Forest inventoryForest inventory LiDAR point statistics Land cover map Forest inventory cloud statisticscloud statistics Statistic modelsStatistic models Cover mapsCover maps INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 18. LiDAR Forestry Applications 18 Workflow – Model adjustment LiDAR explanatory variables Hmean, Hmax, percentiles, Num Points, Elev Skewness, FCC, Diff years, etc. Plots of forest inventories Stepwise regression Model adjustment Statistical model for each specie and a general model Model validation CAT = ∗ ∗ ∗ _ ∗ _ List of main species INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 19. LiDAR Forestry maps 19 Initial data LiDAR metrics Model adjustment Product Generation Workflow LiDAR pointLiDAR point LiDAR dataLiDAR data Land cover mapLand cover map Forest inventoryForest inventory LiDAR point statistics Land cover map Forest inventory cloud statisticscloud statistics Statistic modelsStatistic models Cover mapsCover maps INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 20. LiDAR Forestry maps 20 Workflow – Product generation The model is applied to each 20x20m pixel LiDAR dataLiDAR data Land cover mapLand cover map CAT = ∗ Statistical modelStatistical model INSPIRE Conference 2016 Barcelona, 29th September, 2016 Total Aerial Carbon
- 21. LiDAR Forestry Applications 21 Mbva20 - Applications Forest resources management planning Management/planning of estates or protected areas (Natura 2000, ENPEs…) Location and characterisation of mature forests Forest inventories (with or without field support) INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 22. LiDAR Forestry Challenges 22 Challenges Challenges: Update mvba20 for the next decade (2015-2025) LIDARCAT2. Flight dates: 2016 IFN4. Publication: by the end of 2016 Maps of biophysical variables for the scrubland cover Applications: Fire danger maps… Increase the amount of forestry products INSPIRE directives INSPIRE Conference 2016 Barcelona, 29th September, 2016
- 23. Institut Cartogràfic i Geològic de Catalunya Parc de Montjuïc, E-08038 Barcelona 41º22’12” N, 2º09’20” E (ETRS89) www.icgc.cat icgc@icgc.cat twitter.com/ICGCat facebook.com/ICGCat Tel. (+34) 93 567 15 00 Fax (+34) 93 567 15 67 23 INSPIRE Conference 2016 Barcelona, 29th September, 2016