When assessing how operational plans maintain options for future biodiversity management, the district manager may amalgamate operational plans across an existing convenient geographic unit in the ministry's resource inventory system. Grouping forest inventory compartments may provide such a unit.
For example, in some districts, draft forest ecosystem networks were developed prior to the development of the Biodiversity Guidebook. The district manager should consider these when approving operational plans. However, if these draft networks are causing significant short-term timber supply impacts, it may be necessary to conduct forestry operations within them. If such situations arise, options for maintaining the values in the draft networks should be considered. For example, if there are silvicultural systems, other than clearcutting, that would be compatible with the draft network, these options should be pursued.
Many of these items are covered in more detail on the following pages.
The process of delineating landscape units and assigning biodiversity emphasis is iterative and has three distinct steps:
These three steps are part of the larger regional landscape unit planning strategy, which begins with initial draft linework and leads to setting priorities for landscape unit planning and, ultimately, to the legal establishment of landscape units and objectives. The level of public involvement in each of these steps should be clearly identified as part of the regional landscape unit planning strategy. Public involvement largely depends on whether a land use planning process is in place and what is deemed appropriate locally and regionally. The following policy sections outline how to complete each of steps 1 to 3. These policies are to:
| lower | 30-55 per cent (average 45 per cent) |
| intermediate | 35-60 per cent (average 45 per cent) |
| higher | 10 per cent |
Steps 1 through 4 could be done concurrently or in a different order. However, steps 5 and 6 should be preceded by the first four steps.
1. Apply ecological criteria to rank biodiversity values for each landscape unit
Ecological criteria include:
After applying the criteria and ranking landscape units numerically, group them into higher, intermediate and lower biodiversity values. This displays biodiversity rankings in an acceptable way and also identifies landscape units with similar biodiversity values.
2. Apply criteria to rank timber values for each landscape unit
Timber value criteria include:
3. Apply criteria to rank or consider other resource values for each landscape unit
In some instances it may not be possible to rank other resource values and it may be more appropriate to develop a process that ensures other resource values are considered when assigning biodiversity emphasis. Again, clearly document how other resource values will be considered.
4. Determine the total timber harvesting land base for the planning area and the target number of hectares allocated to each emphasis
In some instances it may not be appropriate to use the timber harvesting land base as defined in the timber supply review. In these cases, the district manager and the designated environment official should arrive at a mutually acceptable definition of the land base to which the emphasis allocation applies.
Once the land base (normally the timber harvesting land base) to which the emphasis allocation applies has been determined, the target number of hectares covered by each emphasis can be calculated. This will serve as a useful guide when developing the emphasis recommendations for individual landscape units in the next step.
For example, it may be useful to prepare a summary table such as the following:
| Emphasis option | % of THLB* | No. ha THLB |
| Higher | 10 | 10 000 |
| Intermediate | 45 (30-55) | 45 000 (30 000-55 000) |
| Lower | 45 (35-60) | 45 000 (35 000-60 000) |
| Total | 100 | 100 000 |
| * timber harvesting land base | ||
It is not necessary to change the percentage allocations with every new timber supply review that redefines the timber harvesting land base. Only a very large change to the overall timber harvesting land base would require a re-allocation of biodiversity emphasis.
5. Comparatively evaluate higher level plans, biodiversity, timber and other resource values by unit and recommend a biodiversity emphasis for each landscape unit
These biodiversity emphasis recommendations must be consistent with higher level plans declared by Cabinet and the allocation targets developed in step 4.
It may be useful to prepare a summary table such as the following.
| Land- scape unit # |
Bio- diversity rank |
Timber rank |
Other resource rank |
Higher level plan zone |
THLB (ha) |
| 1 | 1 | 2 | 1 | Special management zone | 2 000 |
| 2 | 8 | 5 | 2 | General management zone | 17 000 |
| 3 | 3 | 1 | 2 | Enhanced management zone | 5 000 |
At this stage, verify or adjust the landscape units to achieve the target distribution for biodiversity emphasis (45-45-10 per cent).
When developing biodiversity emphasis recommendations the following information should be considered:
6. Present information to land use planning tables or incorporate it into the landscape unit planning strategy
Depending on the level of public involvement agreed to in each region's landscape unit planning strategy, the public or the land use planning tables may be involved in all components of the landscape unit delineation and the biodiversity emphasis option allocations.
(4) When establishing, varying or cancelling an objective for a landscape unit, the district manager must do so by written order and in accordance with the regulations and any directions of the chief forester.
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