The short form for canopy gap fraction is often represented as "CGF." Canopy gap fraction refers to the proportion of sky visible through gaps in the canopy. It is a measure of the openness or porosity of the canopy and is commonly expressed as a fraction or percentage. Mathematically, canopy gap fraction ((CGF)) can be calculated using the following formula: [ CGF = \\frac{\ ext{Gap Area}}{\ ext{Total Sample Area}} ] In this formula, the gap area is the portion of the sample area where no canopy is present, and the total sample area is the entire area being considered for analysis. The result is the fraction of the area that is not covered by the canopy, indicating the extent of openings or gaps in the canopy.