What question did this study set out to answer?

To determine whether terrestrial laser scanning combined with quantitative structure models can accurately estimate above-ground biomass without relying on allometric equations.

November 21, 2014Methods in Ecology and EvolutionOpen Access

Nondestructive estimates of above‐ground biomass using terrestrial laser scanning

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Authors

KCKim CaldersGhent University Hospital GNGlenn NewnhamCanadian Forest Service ABAndrew BurtAgriculture and Agri-Food Canada

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Implication

Validation study demonstrates accurate nondestructive above-ground biomass quantification in eucalypt trees via 3D laser scanning, indicating a reliable calibration tool for broad-scale forest maps.

Key Points

To determine whether terrestrial laser scanning combined with quantitative structure models can accurately estimate above-ground biomass without relying on allometric equations.
Assessed 65 trees in a native Eucalypt Open Forest in Victoria, Australia, recording diameter at breast height (DBH) and tree height using traditional forest inventory, terrestrial laser scanning (TLS), and destructive sampling.
Extracted individual tree point clouds from TLS data and applied quantitative structure models to directly calculate tree volume and infer above-ground biomass (AGB) using basic density values.
Compared TLS-derived AGB predictions against both destructive harvesting reference measurements and traditional allometric equations.
TLS-derived AGB demonstrated strong concordance with destructive harvesting measurements (concordance correlation coefficient [CCC] = 0.98), showing an overall overestimation of 9.68%.
Allometric equations showed lower agreement with destructive reference data (CCC = 0.68–0.78), underestimated total AGB by 29.85% to 36.57%, and exhibited errors that grew exponentially with increasing DBH.
Vertical canopy analysis revealed that 80% of plot-level AGB was concentrated within the lower 60% of tree height.

Cite This Study

Calders et al. (2014) studied this question.

synapsesocial.com/papers/69d9f5115e5bcb4e3b838499 https://doi.org/10.1111/2041-210x.12301

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Implication

Validation study demonstrates accurate nondestructive above-ground biomass quantification in eucalypt trees via 3D laser scanning, indicating a reliable calibration tool for broad-scale forest maps.

Nondestructive estimates of above‐ground biomass using terrestrial laser scanning

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Implication

Key Points

Cite This Study

Nondestructive estimates of above‐ground biomass using terrestrial laser scanning

Discussion

Member takes

Implication

Key Points

Cite This Study

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