Rank the silvicultural systems listed from higher to lower timber extraction (in m3/ha), with 1 being the highest and 4 being the lowest. 1: 1 2: 2 3: 3 4: 4匹配题

A

Group selection

B

Patch cutting

C

Clearcutting

D

Individual tree selection

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类似问题

Which of the following are not silvicultural treatments?  More than one may apply, but be careful because incorrect choices reduce your score.

Match the following descriptions with the associated silvicultural concept: 1: Removal of trees in blocks of less than 1 ha. 2: Stand harvesting is done in several successive cuttings that protect the regeneration of an even-aged stand. 3: Frequent but low intensity cuttings to harvest mature trees and regenerate the stand while maintaining an uneven-aged structure. 4: Clearcutting and subsequent vegetative regeneration for some hardwoods. 5: A one time harvesting followed by the regeneration of the stand, producing an even-aged stand. 6: Removal of trees with the main objective of promoting growth of remaining standing trees.

Which of the following are examples of silvicultural systems?  Mark all that apply, but be careful because wrong answers discount points.

 Variable Retention is a silviculture system that includes group and ________ retention. (one word answer)

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