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Slope correction for LAI estimation from gap fraction measurements



Slope correction for LAI estimation from gap fraction measurements



Agricultural And Forest Meteorology8: 10, 1553-1562



Digital hemispherical photography poses specific problems when deriving leaf area index (LAI) over sloping terrain. This study proposes a method to correct from the slope effect. It is based on simple geometrical considerations to account for the path length variation within the canopy for cameras pointing vertically. Simulations over sloping terrain show that gap fraction increases up-slope while decreasing down-slope.

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Accession: 033411855

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DOI: 10.1016/j.agrformet.2008.05.005



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