Question

In Shelterwood system, the seeding felling aims to retain ____trees.

• A. Middle‐aged healthy and vigorous trees capable of producing adequate seeds
• B. Middle‐aged healthy and vigorous trees capable of producing few seeds
• C. Healthy and vigorous trees incapable of producing seeds
• D. Over mature trees capable of producing seeds

Hint:

Seeding Felling = Seed + Shelter. You need healthy "middle-aged" parents to get the best "babies" (seedlings). Avoid the very old or the very young.

Answer 1

The Correct Option is A

Step 1: Understanding the Question:
The Shelterwood System is a silvicultural method where the mature crop is removed in a series of fellings to encourage natural regeneration under the "shelter" of the remaining trees. The "Seeding Felling" is the most critical stage.

Step 2: Detailed Explanation:

• Sequence of Fellings: Preparatory Felling \(\rightarrow\) Seeding Felling \(\rightarrow\) Secondary Felling \(\rightarrow\) Final Felling.

• Purpose of Seeding Felling: This felling opens up the canopy significantly to allow enough light for seedlings to grow, but retains a "shelter" to protect them from frost, heat, and weeds. Crucially, the trees left behind must provide the seeds for the new crop.

• Selection Criteria: The "seed bearers" should be: - Middle-aged: Because they are at their peak of reproductive vigor. - Healthy and Vigorous: To ensure high-quality, viable seeds. - Good Crown Development: To produce a large quantity (adequate amount) of seeds.

• Why not others? Over-mature trees (D) may have low seed viability or be prone to fungal decay. Incapable trees (C) defeat the purpose of "natural" regeneration.

Step 3: Final Answer:
Seeding felling aims to retain middle-aged, healthy, and vigorous seed bearers to ensure a successful new generation.