Web1. Understand how one would use a fixed area plot to determine which resources to sample. 2. Calculate, from a sample collected within a fixed area, stand-level forest characteristics such as trees per acre or basal area per acre. 3. Determine sampling intensity associated with a fixed area plot sample. 4. WebThe Plot Radius Factor for a Prism is calculated using: √(75.625/BAF) The Plot Radius Factor for a 10 BA Prism = 2.75. Example: (PRF is 2.75, DBH 10.0) ... In fixed area plot sampling, we assume that the plot area is representative in the remainder of the area of interest. Usually statistics about the stand are reported on the standard unit ...

Forest inventory - Wikipedia

WebApr 6, 2024 · Fixed-radius plots are usually circular with plot sizes commonly reported in fractions of acres (1/10 acre, 1/20 acre, etc.). Size and number of plots used in a forest inventory will vary depending on the desired sampling intensity, average tree size, and … WebDec 1, 1994 · Albert R. Stage, John C. Rennie; Fixed-Radius Plots or Variable-Radius Plots? Designing Effective Inventory, Journal of Forestry, Volume 92, Issue 12, 1 Decembe boundary patch

Forest inventory - Wikipedia

WebMar 25, 2014 · The proportion of correctly co-registered plots with the Jura data is higher (92.0%), which could be linked to several factors. First the plots are of a 17-m fixed-radius, so that more trees are inventoried inside smaller surfaces, leading to a better local fit between the stand described by the inventory and the canopy height model. Webradius, which is the distance from the plot center to the outer edge of the plot (Figure 4-1). Table 4-1 below shows plot radius values for a range of plot sizes. Figure 4-1: The plot … Webrecommended a 10 BAF plot over fixed plots for basal-area estimation. Barrett and Carter (1968) found 20-BAF plots to be 67—98 percent more efficient than 1/10-acre plots for … boundary comic