《Table 1 Comparison of ACD-estimation models derived from area-based (1, 2, 3) and tree-centric (4,

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《Airborne laser scanning of natural forests in New Zealand reveals the influences of wind on forest carbon》

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Terms in the models include basal area（BA）and wood density（ρ）recorded in plots，Top-of-the-Canopy Height（TCH）and residual variation in canopy cover（Cover10）estimated from ALS data，as well as Crown Diameter（CD）and Height（H）of individual overst

With such an large dataset，computational efficiency is essential.Thus we opted to map carbon using Model 1in Table 1，even though delineation methods produce slightly more accurate predictions.There were 4.5 million measurements of top-of-the-canopy height within the natural old-growth and secondary forests of Wellington Region，each estimated from the ALS canopy height model averaged over 25 m×25 m.