What does allowable cut mean?

Agriculture and Forestry The Annual Allowable Cut (AAC) is the annual amount of timber that can be harvested on a sustainable basis within a defined forest area. The AAC is measured in cubic metres and is based on what the forest will grow.

What is allowable cut in forestry?

The Allowable Cut is the volume of timber that can be harvested each year under a planned harvest schedule and is determined using a variety of techniques of harvest scheduling. Long term sustained yield (LTSY) is the allowable annual cut (AAC) for a regulated forest.

How is annual allowable cut calculated?

TA = the total area of a forest management unit, In its simplest form, the Annual Allowable Cut (AAC) can be derived by combining the maximum felling area which may be cut each year with the volume of wood in the felling area that has been determined from a pre-harvest inventory, described in Part II, section 1.3. 5.

What is an annual allowable cut?

The Annual Allowable Cut (ACC) is the annual amount of timber that can be harvested on a sustainable basis within a defined forest area. The AAC is measured in cubic metres and is based on what the forest will grow.

Which province allocates the lowest total annual allowable cut?

Manitoba has the lowest forest use intensity among the provinces, harvesting less than 15 per cent of its annual allowable cut.

What is cutting cycle in forestry?

Cutting cycle-The time between harvest cuts. Also, here are some definitions for the various components of growth: Survivor growth-Growth on trees present at both the beginning and end of a measurement period within a given size class. Mortality-Volume or basal area of all trees that died during a measurement period.

What are the benefits of social forestry?

Benefits of Social Forestry

  • Increased Biodiversity.
  • Carbon removal – trees act as carbon sinks!
  • Soil conservation.
  • Health benefits.
  • Community enrichment.
  • Noise reduction.
  • Improve air quality.
  • Energy conservation and reducing overall atmospheric temperatures.


[KEY]What is annual allowable cut BC?[/KEY]

What is the Allowable Annual Cut? The Allowable Annual Cut is the maximum average level of timber harvest permitted for forest management areas—it represents a harvest level that balances environmental, economic and social considerations.


How is AAC determined?

The AAC is determined on either an individual forest management unit basis or specific forest management agreement area basis. Information is compiled in a database to determine the AAC for the province. Data from the Timber Production and Revenue System is used to determine the harvest level.

What is a timber supply area?

The spatial representation for a Timber Supply Area or TSA Supply Block: A Timber Supply Area is a designated area established by the Ministry in order to practice sound, integrated, resource management principles to improve the allowable annual cuts.

What is timber supply?

The typical timber supply chain in the South consists of the forest landowner, the timber buyer, and the end-user, or wood mill. Timber is typically purchased from a landowner by a dealer, who in turn sells the harvested wood to a variety of wood processing mills.

Which province produces the most wood?

The main lumber producing provinces are British Columbia (at least 2,606,000 cubic meters in January 2017), Quebec (1,467,300 cubic meters), Alberta (798,800 cubic meters), and Ontario (476,400 cubic meters).

What provinces have the most forests?

Forest Land By Canadian Province And Territory

Rank Canadian Province/Territory Total forest area (thousands of hectares)
1 Quebec 73,360
2 Ontario 53,758
3 British Columbia 57,910
4 Northwest Territories 28,352

What is a timber supply area BC?

Timber supply area designations ensure BC Timber Sales has sufficient allowable annual cut allocation.

What is the process of clear cutting?

Clear-cutting is a method of harvesting and regenerating trees in which all trees are cleared from a site and a new, even-age stand of timber is grown. Many conservation and citizen groups object to clear-cutting any forest, citing soil and water degradation, unsightly landscapes, and other damages.

What is similar to deforestation?


  • desertification.
  • erosion.
  • logging.
  • denuding.

What is cutting cycle in silviculture?

cutting cycle. In selection (polycyclic) harvesting systems, the planned number of years between successive harvests on an area of forest. The harvesting activitiy occurs at the end of thr cutting cycle. It is also referred to as felling cycle.

What are the 3 elements of social forestry?

In the context of social forestry the three components are effectiveness, efficiency and equity.

What are the three objectives of social forestry?

Social forestry schemes have the main objectives to:

  • Improve the environment for protecting agriculture from adverse climatic factors,
  • Increase the supply of fuelwood for domestic use, small timber for rural housing, fodder for livestock, and minor forest produce for local industries,

What is the difference between agroforestry and social forestry?

Agro forestry refers to the cultivation of trees and shrubs are grown around or among crops and pastureland. Social forestry refers to the management and protection of forests and afforestation on barren lands. Social forestry aims to start new forests or protect existing forests from deforestation.

What are the 5 effects of reforestation?

It is well known that afforestation can have many positive impacts on degraded land, including conservation of soil on degraded land by reducing soil erosion, as well as increasing soil organic matter, improving soil structure, sequestering carbon, increasing nutrient cycling, providing wildlife habitat, improving the

What is difference between reforestation and deforestation?

Deforestation is the cutting down of trees in a large scale. Reforestation is the replanting of trees where once the place was covered with trees.

What is difference between reforestation and afforestation?

Reforestation is the process of planting trees in a forest where the number of trees has been decreasing. Afforestation is when new trees are planted or seeds are sown in an area where there were no trees before, creating a new forest.

What is the AAC in BC?

Allowable Annual Cut – Timber Supply Areas – Province of British Columbia.

How much timber is harvested annually?

Harvesting affects nearly 10 million acres in the U.S. annually, or about 1.3% of all forest land. Over half the harvest area is in the South which provides nearly 60% of all the Nation’s forest products annually.

How many trees are cut down each year in British Columbia?

200 million trees are planted annually in British Columbia, or about three seedlings for every tree cut. If 3 seedlings are planted for every one cut, this also means that approximately 66,000,000 trees are cut down annually in BC.

Who can benefit from AAC?

Who can Benefit?

  • Children and adults with speech and intellectual disabilities – non-verbal, partially verbal and single word communicators.
  • Children and adults with Autism, Cerebral Palsy, Down’s Syndrome, Rett Syndrome, PDD-NOS, Aphasia, Apraxia or any other condition that affects speech.

Who should use AAC?

AAC should also be considered for individuals who have some speech or speech that is unintelligible to unfamiliar listeners. These individuals may use AAC to augment their communication. Other individuals may use speech in low-demand contexts but choose to use AAC to augment their communication in high-demand contexts.

When should I start AAC?

According to research, access to AAC beginning at 16 months of age has been found to benefit children with disabilities such as autism, Down syndrome, cerebral palsy, and unspecified developmental delays.

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