Resource management plan


Objectives/Treatments- Stand Level Biodiversity



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Objectives/Treatments- Stand Level Biodiversity


Currently there are no habitat treatments such as riparian spacing planned for the TSA. Several objectives outlined in the Ministry of Environment Habitat/Ecosystem Objectives and Monitoring Procedures for Incremental and Backlog Silviculture Treatments, have been incorporated into the Sustainable Harvest program. Table 8.02b outlines objectives, practices and applicable silviculture treatments that contribute to stand level biodiversity.
Table 8.02b Objectives and Practices for Maintaining Stand Level Biodiversity

Objective
Practice

Treatment: JS/PR/BR*

Manage for stand vertical and horizontal structure.

Allow for shade tolerant understory trees when spacing (i.e. Cw).

JS

Rehabilitate Riparian Management Areas

Include RMZ’s and RRZ’s in manual brushing treatments to encourage long term conifer establishment.
Space RMZ’s and RRZ’s to a lower density to encourage low density, large diameter conifer establishment.

BR

JS


Maintain visual screening corridors or buffers for wildlife.

Maintain a 1 or 2 tree no-pruning buffer along roads. Do not prune WTP’s.

PR

Retain wildlife trees and tree patches.

Plan for a percentage of area as WTP’s in spacing layout. WTP’s should include both high and low density stands.
Do not prune WTP’s.

JS

PR


Retain “rare” ecosystems, forest, plant and vegetation types.

Reserve cascara, dogwood, pacific crab apple, yew and other rare species from cutting when brushing or spacing.

JS

BR


JS-Juvenile Spacing

PR-Pruning

BR-Brushing

    1. Objectives/Treatments-Landscape Level Biodiversity


In advance of landscape unit planning, South Island Forest District has a district policy on Wildlife Tree Patches. The idea is to maintain a percentage of each landscape unit as old growth forest or second growth forest with old growth characteristics. Therefore, wildlife tree patches will be retained when spacing and pruning. The district policy will be used as a guideline to determine the percentage of area to be retained as WTP’s. This will ensure we are managing for WTP’s in future harvest planning. Table 8.03a identifies landscape units where silviculture treatments are likely to happen and the applicable WTP retention percentage.
Table 8.03a WTP Retention Guidelines

Landscape Unit

WTP Retention (by biogeoclimatic zone)

Effingham

CWH 6%

MH 4%


Escalante

CWH 13%

MH 10%


Maggie

CWH 13%

Nanaimo

CDF 12%

CWH 17%


MH 3%

Nanoose

CDF 12%

CWH 13%


Qualicum

CDF 15%

CWH 14%


Rosewall

CDF 13%

CWH 15%


Toquart

CWH 7%

MH 3%

In addition to the use of WTP’s, it is expected that manual brushing and juvenile spacing RMZ’s/RRZ’s will contribute to the long-term establishment of Forest Ecosystem Networks. Although RRZ’s will not contribute to the next AAC forecast, brushing and spacing will help to create the large diameter conifers necessary for re-establishing riparian habitat.

  1. Working Targets

TSR analysis indicates the following working targets may be attainable. Proposed silvicultural treatment regimes are important for meeting these targets.


    1. Quantity


  • Maintain the current harvest level of 400,000 m3 in the short and mid terms, rising in 15 decades to a long-term harvest level of 435,000 m3.

    1. Quality


  • Maintain the proportion of premium logs at or above 8% of future harvest volumes.

    1. Habitat Supply/Biodiversity


  • Maintain the specified percentages of land area as Wildlife Tree Patches as per District Policy.

  • Restore the majority of riparian management zones to free growing coniferous or mixed coniferous/deciduous stands on all pre-1987 harvested areas.

  • WTP’s and restored RMZ’s to be available for harvest planning in 80 + years or by the commencement of second harvest.



  1. Proposed Program

The proposed sustainable harvest programs for Arrowsmith TSA are shown in the separate RMP tables.


The backlog brushing and juvenile spacing components are necessary to achieve the assumptions regarding incremental and basic silviculture in the current AAC determination.
Backlog brushing, juvenile spacing, pruning and fertilization will help to mitigate an AAC falldown in the Small Business Program. They are also an integral part of achieving the working targets as set out in this RMP.
The focus of this program will be to complete the majority of backlog brushing within 3 years, start on a regular juvenile spacing/pruning program and to fertilize 1000 ha/yr.
The proposed program is anticipated to provide 5500 person days of employment or 25 full time equivalent positions. Labour is expected to come from the silviculture contracting community through provincial or local tenders and using employees from New Forest Opportunities Ltd. There is also a long-term impact of 51,500m3 in wood volume, which will provide additional employment through the Small Business Forest Enterprise Program.



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