Question:
Given below are two statements
Statement I: Instrument called Conimeter is used for vertical point sampling.
Statement II: Within a full 360$^\circ$ sweep around the sample point all trees appearing taller than a critical angle C are counted.
In light of the above statements, choose the correct answer from the options given below
Given below are two statements
Statement I: Instrument called Conimeter is used for vertical point sampling.
Statement II: Within a full 360$^\circ$ sweep around the sample point all trees appearing taller than a critical angle C are counted.
In light of the above statements, choose the correct answer from the options given below
Statement I: Instrument called Conimeter is used for vertical point sampling.
Statement II: Within a full 360$^\circ$ sweep around the sample point all trees appearing taller than a critical angle C are counted.
In light of the above statements, choose the correct answer from the options given below
Show Hint
Conimeter = Crown cover/Canopy.
Horizontal Point Sampling = Diameter based.
Vertical Point Sampling = Height based.
Horizontal Point Sampling = Diameter based.
Vertical Point Sampling = Height based.
Updated On: Aug 7, 2026
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Statement I is false but Statement II is true
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
The question explores "Vertical Point Sampling" (VPS), a less common inventory method used to estimate parameters like total height or volume.
Step 2: Detailed Explanation:
• Statement I analysis: A Conimeter is an instrument used primarily for measuring crown density or crown cover in a forest canopy. It is not the standard instrument for Vertical Point Sampling. VPS usually uses a Relaskop set to a specific vertical angle or specialized height-measuring tools. Thus, Statement I is false.
• Statement II analysis: Vertical Point Sampling works on a vertical plane. Instead of diameter (as in horizontal point sampling), it uses tree height. The cruiser rotates 360$^\circ$ and counts all trees that appear taller than a predetermined vertical angle. This is geometrically similar to how trees are selected based on width in horizontal point sampling. Thus, Statement II is true.
• Context: VPS provides an estimate of the sum of heights or volumes per unit area depending on the mathematical formula applied to the "In" trees.
Step 3: Final Answer:
Statement I is incorrect, while Statement II correctly describes the counting principle of vertical point sampling.
The question explores "Vertical Point Sampling" (VPS), a less common inventory method used to estimate parameters like total height or volume.
Step 2: Detailed Explanation:
• Statement I analysis: A Conimeter is an instrument used primarily for measuring crown density or crown cover in a forest canopy. It is not the standard instrument for Vertical Point Sampling. VPS usually uses a Relaskop set to a specific vertical angle or specialized height-measuring tools. Thus, Statement I is false.
• Statement II analysis: Vertical Point Sampling works on a vertical plane. Instead of diameter (as in horizontal point sampling), it uses tree height. The cruiser rotates 360$^\circ$ and counts all trees that appear taller than a predetermined vertical angle. This is geometrically similar to how trees are selected based on width in horizontal point sampling. Thus, Statement II is true.
• Context: VPS provides an estimate of the sum of heights or volumes per unit area depending on the mathematical formula applied to the "In" trees.
Step 3: Final Answer:
Statement I is incorrect, while Statement II correctly describes the counting principle of vertical point sampling.
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