FREE Bachelor of Science in Forestry: Navigating Forest Management Questions and Answers
What type of aerial photographs are captured when the camera axis is directed at an angle that lies between the vertical and horizontal orientations?
The correct answer is "Oblique photographs." These are the type of aerial photographs captured when the camera axis is positioned at an angle between the vertical and horizontal orientations. Oblique photographs offer a unique perspective, showcasing the terrain and objects from an inclined viewpoint. This angle often allows for a better visualization of the landscape's features and three-dimensional characteristics compared to purely vertical photographs.
Among the options listed, which factor affects the production of forage?
The correct answer is "Climate." Among the listed options, climate is the factor that significantly impacts the production of forage. Climatic conditions, including temperature, precipitation, and seasonal variations, directly influence the growth and availability of vegetation that serves as forage for animals.
With a channel area of three (3) square meters, a stream carries a flow volume of 6,000 cubic meters per hour. What is the streamflow's velocity in meters per second?
The correct answer is "0.056 m/sec." Given a channel area of three square meters and a flow volume of 6,000 cubic meters per hour, the streamflow's velocity can be calculated by dividing the flow volume by the channel area and then converting the units from cubic meters per hour to cubic meters per second. The answer is 0.056 meters per second (m/sec), reflecting the speed of the stream's flow.
What constitutes the smallest feasible size for photographs used in the analysis of forest conditions?
The correct answer is "1:20,000-1:25,000." This range represents the optimal scale for photographs utilized in the analysis of forest conditions. It strikes a balance between capturing sufficient detail for accurate analysis and providing a broad overview of the forest landscape, making it an effective choice for various types of forest assessments.
In the calculation of a rangeland's carrying capacity, which one of the following factors is excluded from the computation?
The correct answer is "Area of the rangeland." When calculating the carrying capacity of a rangeland, the area of the rangeland is not directly factored into the computation. Instead, factors like forage production, forage consumption, and proper use factor are considered to determine the sustainable number of livestock that the rangeland can support. The area itself is not a variable in this specific calculation.
What is the mean increase in size of a forest stand observed throughout the entire measurement duration?
The correct answer is "Mean annual increment." This term refers to the average growth in the size of a forest stand over the entire period of measurement. It provides insight into the annual average growth rate of trees within the stand, aiding in forest management decisions and understanding the stand's development.
What is the initial stage of the selective logging process called?
The correct answer is "Tree marking." In the selective logging process, the initial stage is referred to as "Tree marking." During this phase, foresters identify and mark specific trees that are targeted for harvesting, based on predetermined criteria such as species, size, and quality. This marking ensures that only the designated trees are extracted, promoting sustainable and controlled logging practices while preserving the health of the forest ecosystem.
How does a rise in the interest rate influence the duration of rotation?
The correct answer is "Rotation will be shorter." An increase in the interest rate prompts forest managers to shorten the rotation length. This adjustment is made to optimize timber harvesting and revenue generation within a timeframe that considers the higher discounting effect of the elevated interest rate on future timber values.
Which of the following does not impact the monetary or economic worth of forested lands?
The correct answer is "Payback period." The payback period is not directly related to the monetary or economic value of forested lands. It's a financial metric that assesses the time required for an investment to recover its initial cost. In contrast, stumpage value, soil expectation value, and net present value are all factors that play a role in determining the economic worth of forested lands.
Among the various zones established within NIPAS areas, in which specific zone is it not feasible to carry out Community-Based Forest Management (CBFM)?
The correct answer is "Protected Zone." Within NIPAS areas, Community-Based Forest Management (CBFM) is not suitable for implementation in the Protected Zone. This zone is dedicated to stringent conservation efforts, making it incompatible with activities involving direct human intervention or management, such as CBFM, in order to preserve the area's natural state and ecological balance.
What represents the complete quantity of timber within a forest region available for sale through stumpage arrangements?
The correct answer is "Timber inventory." Timber inventory refers to the comprehensive assessment and quantification of the available timber resources within a forest area. This information is crucial for determining the potential volume of timber available for sale through stumpage arrangements. It assists in sustainable forest management by ensuring the responsible utilization of forest resources.
In the selective logging system, what is the name of the third phase where desired trees are chosen and non-essential trees, as well as damaged and defective ones, are eliminated to ensure their growth?
The correct answer is "Timber Stand Improvement." In the context of the selective logging system, the phase referred to as "Timber Stand Improvement" involves the careful selection of desired trees for growth and development, while simultaneously removing non-essential, damaged, and defective trees. This practice aims to enhance the overall quality and health of the remaining stand, ensuring the optimal growth and sustainable management of valuable tree resources.
Within the realm of range management, a particular system poses a threat to grazing lands due to extreme overgrazing in some areas and minimal grazing in others. What is this system called?
The correct answer is "Continuous grazing." This system is problematic for grazing lands as it leads to unequal utilization, where some areas are heavily overgrazed while others remain underutilized. This uneven pattern can result in degradation of the overgrazed areas and reduced productivity of the entire range ecosystem.
What is the technique that expedites germination by making a small incision in the testa to reveal a portion of the cotyledon?
The correct answer is "Nicking." This technique involves making a small incision in the seed coat (testa) to expose a part of the cotyledon. By doing so, the process of germination is accelerated as it helps the emerging seedling break through the seed coat more easily. This method is particularly useful for seeds with hard or impermeable seed coats.
What does the term "harvested volume" refer to in relation to a forest within a specific timeframe or designated duration?
The correct answer is "yield." The term "harvested volume" pertains to the quantity of timber or forest products that are extracted from a forest during a specified time period or designated duration. It reflects the measurable outcome of forest management practices and harvesting activities within the given timeframe.
What is the procedure through which undesirable plants or trees lacking economic or commercial significance are selectively removed or thinned to promote the development of the remaining trees?
The correct answer is "timber stand improvement." Timber stand improvement involves the selective removal or thinning of undesirable plants or economically insignificant trees in order to enhance the growth and development of the remaining trees. This process contributes to the overall health and productivity of the forest ecosystem.