Certified Forester Practice Exam

How is plot size calculated in a fixed-area sampling method?

1. By multiplying the area of the forest

2. By dividing total area by any ac value

3. By totaling tree counts in the area

4. By dividing AC represented by total area and multiplying by 100

The correct answer is: By dividing AC represented by total area and multiplying by 100

In a fixed-area sampling method, plot size is determined by assessing the specific area that will be measured and inventoried. The correct answer relates to the process of dividing a total area into discrete sections represented by the area of each of those sections, such as acres, and then applying that to derive standardized plot sizes. By dividing the area in acres (AC) that is to be represented by the total area and multiplying by a factor like 100, you establish a consistent basis for sampling that allows for accurate scaling and comparison across different plots and forest areas. This approach helps ensure that the sampling method is statistically valid and can be replicated, aligning with principles of forest measurement and management. The multiplication factor can also help convert the area into a more manageable number, aiding in logistical planning for fieldwork. Ultimately, understanding how to calculate plot size effectively contributes to robust data collection and management practices in forestry.