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Girard form class is a form quotient calculated as the ratio of diameter inside bark at the top of the first 16 foot log to the diameter outside bark at breast height ().Its purpose is to estimate board-foot volume of whole trees from measurement of DBH, estimation of the number of logs, and estimation of the taper of the first log, based on the general relationships identified between the ...
To calculate trunk volume, the tree is subdivided into a series of segments with the successive diameters being the bottom and top of each segment and its length equal to the difference in height between the lower and upper diameter. Cumulative trunk volume is calculated by adding the volume of the measured segments of the tree together.
An Excel spreadsheet can be used to determine the rate the apparent size of the scale changes with distance, and that value can be used to calculate the diameter of the tree given that the tree is circular in cross section and the distance to the front side of the tree is known. Girth then is calculated by multiplying the diameter by pi.
Each tree’s measurements are used to calculate the area projected by the crown onto the ground. Summing the crown areas for all trees measured on a fixed plot area and dividing by the ground area will give the crown closure. The "moosehorn" crown closure estimator is a device for measuring crown closure from the ground. [4]
Coverage ratio may refer to Building coverage ratio, related to floor area ratio; Debt service coverage ratio; Interest coverage ratio This page was last edited on 6 ...
It may also be defined as the degree of crowding within stocked areas, using various growing space ratios based on crown length or diameter, tree height or diameter, and spacing. Stand density index is usually well correlated with stand volume and growth, and several variable-density yield tables have been created using it.
Interest coverage ratio, or ICR, is used to evaluate a company’s ability to pay the interest it owes on its debts. There is no generally agreed upon standard for what makes a healthy ICR across ...
Not to be confused with Grundflächenzahl (GRZ), which is the Site Coverage Ratio. In India floor space index (FSI) and floor area ratio (FAR) are both used. [7] In the United Kingdom and Hong Kong both plot ratio and site ratio are used. [8] [9] In Singapore the terms plot ratio and gross plot ratio (GPR) are more commonly used.