A bi-temporal airborne lidar shrub-to-tree aboveground biomass model for the taiga of western Canada

dc.contributor.authorFlade, Linda
dc.contributor.authorHopkinson, Christopher
dc.contributor.authorChasmer, Laura
dc.date.accessioned2025-06-16T23:00:49Z
dc.date.available2025-06-16T23:00:49Z
dc.date.issued2024
dc.descriptionOpen access article. Creative Commons Attribution 4.0 International license (CC BY 4.0) applies
dc.description.abstractMonitoring aboveground biomass (AGB) is critical for carbon reporting and quantifying ecosystem change. AGB from field data can be scaled to the region using airborne lidar. However, lidar-based AGB products emphasize upland forests, which may not represent the conditions in rapidly changing peatland complexes in the southern Taiga of western Canada. In addition, to ensure that modeled AGB changes do not incorporate systematic error due to differences between older and newer lidar technologies, model transfer tests are required. The aim of this study was to develop one bi-temporal lidar-based AGB model applicable to (1) vegetation structures at varying vertical and horizontal continuity in this region and to (2) data collected with an earlier generation lidar system for which Canada-wide aerial coverage is available. Goodness-of-fit metrics show that AGB can be modeled with moderate (R2 = 48%–58% Taiga Shield, peatlands) to high accuracies (R2 = 83%–89% Taiga Plains, upland/permafrost plateau forests including ecotones) by using the point clouds average height and 90th height percentile within a weighted approach as function of modeled AGB and calibrating the earlier lidar data. These results are important for quantifying climate change effects on forest to peatland ecotones.
dc.description.peer-reviewYes
dc.identifier.citationFlade, L., Hopkinson, C., & Chasmer, L. (2024). A bi-temporal airborne lidar shrub-to-tree aboveground biomass model for the taiga of western Canada. Canadian Journal of Remote Sensing, 50(1), Article 2379945. https://doi.org/10.1080/07038992.2024.2379915
dc.identifier.urihttps://hdl.handle.net/10133/7058
dc.language.isoen
dc.publisherTaylor & Francis
dc.publisher.departmentDepartment of Geography and Environment
dc.publisher.facultyArts and Science
dc.publisher.institutionUniversity of Lethbridge
dc.publisher.urlhttps://doi.org/10.1080/07038992.2024.2379915
dc.titleA bi-temporal airborne lidar shrub-to-tree aboveground biomass model for the taiga of western Canada
dc.typeArticle
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