Stocking Standards

Question 1

What things can reduce the fall down effect by increasing the AAC (Amount of timber available)?

Answer 1

• Spacing and commercial thinning
• Promptness of reforestation
• Fertilization
• genetic enhancement of stock.

Question 2

What is the chief rule in establishing reforestation standards?

Answer 2

• Must be ecologically sound and site specific by law.

Question 3

What do stocking standards specify?

Answer 3

1. Preferred and Acceptable species of trees to plant or promote
2. Target and Minimum densities of stems/hectare for both preferred and acceptable species of trees (tertiary species can not exceed more than 20% to 30% of the stocking)
3. Maximum Regeneration Delay period (stand establishment date)
4. Earliest and Latest “Free Growing” period (latest possible is 20)
5. Minimum % tree over brush size allowance (150% in most cases)
6. Minimum crop tree size at “Free Growing”
7. Maximum density limits ( in most cases, this did not exceed 10,000 Sph.
8. Minimum crop tree size at free growing.

Question 4

What are tertiary species?

Answer 4

A tree that does not have economic value but may have biological or other values.

Question 5

Why is 10,000 the max legal density?

Answer 5

Above this, attrition and competition are a result of too high of density.

Question 6

Regeneration Delay Period: what is it?

Answer 6

Following establishment date, the time that is allotted for a harvested site to be regenerated to the specified density and stocking, with the appropriate species.

Question 7

What is the length of the regeneration period dependent on?

Answer 7

Site productivity and potential for brush encroachment.

High productivity have a greater chance of brush invasion but also have the potential to reach free growing faster.

Question 8

Regeneration Date:

Answer 8

means the end of the period, following the commencement date, by which a stand being established on the net area to be reforested must conform to stocking standards set in the FSP

Question 9

Free to grow period

Answer 9

The period of time required for a stand to become established on a site where conditions are such that it is unlikely to be affected.

Earliest is 5 years. A factor of SI and species.

Question 10

Define a free to grow stand

Answer 10

One that is stocked with the appropriate species as specified in the Stewardship Plan to the minimum acceptable density and to an appropriate spacing, but not exceeding the maximum density, has no competing vegetation and/or other damaging or growth reducing agents. Attained the minimum specified height and is growing unimpeded either by brush or non target species.

Question 11

What are the 3 main criteria for species selection

Answer 11

1. Maximum sustainable productivity. Which trees or combination of trees that are ecologically feasible (all things being equal) will generate the most volume and value from the site. This also takes into consideration the long term effects of the stand on the site (acidification of a site by too many rotations of pure Hw)
2. Crop Reliability. This means that the crop should be resistant and resilient to all potential hazards, including environmental, thru to rotation.
3. Silvicultural Feasibility. This means that the least cost combination of species should be selected. There is a cost associated with selecting one species over an other. Some species require more tending than others and therefore cost more to produce. Costs associated with site preparation, seedling production, vegetation control, fertilization, etc.

Question 12

What would you do to increase the feasibility of Pw?

Answer 12

• Plant higher density to offset losses
• Resistant stock
• Pruning

Question 13

What are steckles?

Answer 13

Cuttings from cypress used for regeneration. Put into containers and warmed up to induce rooting. More expensive than regular seedlings.

Question 14

Class A seed vs Class B seed

Answer 14

Class A: Genetically enhanced. Quantified by volume difference.

Class B: Wild

Question 15

Who has to produce stocking standards?

Answer 15

Any forrester who operates on crown land under a timber harvesting license.

Question 16

Define primary, secondary and tertiary species

Answer 16

Primary: Ecologically acceptable, silviculturally feasible, reliable and productive. Major component of stand, must make up at least 100 stems less than the minimum stocking standard.

Secondary: Ecologically acceptable but rank lower than primary spp in one or more other metrics.

Tertiary: Ecologically suitable but rank lower than primary and secondary. Can only make up 20-30% of stand.

Question 17

Define Target stocking standards, mss (pa), mss (p)

Answer 17

Target: (preferred and acceptable). This is the level that should
produce the optimum level of timber on the site at Rotation to sustain the AAC.

Minimum stocking standard (preferred and acceptable). This is least number of trees per hectare that will insure a minimum operable level of timber production that can contribute to the AAC for the management unit.

Minimum stocking standard (preferred). This is normally MSS minus100 stems and is the least number of seedlings of the preferred species per hectare that will generate the minimum operable volume and value at rotation.

Question 18

What is clearcut equivalency?

Answer 18

Used to reflect residual density of trees in uneven aged by layers.

• 300 layer 1 class trees are equal to 700 layer 4 class trees
• 400 layer 2 class trees are equal to 700 layer 4 class trees
• 600 layer 3 class trees are equal to 700 layer 4 class trees

Question 19

What does a site plan specify?

Answer 19

Defines harvesting area and takes note of anything that is unique to the site. Specifies if there is any action that defies FSP. Site plan does not need to be reviewed but must be kept on file.