Tour Stop 11 - Aggregated Retention

Opening Size: 6.4 Hectares

Summary Description of Key Features

Silvicultural System: Aggregated Retention 
Treatment Unit Size: 25.5 ha 
Opening Sizes: 4.4, 6.4, and 11.5 ha 
Deferred Areas: 3.2-ha adjacent area temporarily deferred
Retention Structures Objective: 2.6 ha of internal reserves and 5.5-ha riparian reserves 
Age Structure: Two-aged

stop 11 location map

Tour Stops

1 2 3
4 5 6
7 8 9
10 11 12

STEMS Tour Main Map

A view of the aggregated retention treatment at the following intervals:

Immediately after harvest:

0 years after harvest for stop 11

Five years after harvest:

year 5 after harvest for stop 11

What is Aggregated Retention?

The aggregated retention system retains individual trees and groups of trees within the cutblock for the purpose of maintaining or protecting environmental values and structural diversity during at least one rotation. More than half the total area of the cutblock is within one tree-height from the base of a tree or the cutblock boundary. This study will examine windthrow and the spread of root disease from residual to regenerating trees, which are potential problems with this treatment.