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2021-05-14

What fraction of the fossil fuel emissions in the United States could be absorbed by converting 25% of agricultural land in the US to native forests?

What fraction of the fossil fuel emissions in the United States could be absorbed by converting 25% of agricultural land in the US to native forests?

Approximately 20%

What is the main purpose of a forester?

Foresters engage in a broad range of activities including ecological restoration and management of protected areas. Foresters manage forests to provide a variety of objectives including direct extraction of raw material, outdoor recreation, conservation, hunting and aesthetics.

Which of the following forest management practices is the most harmful to forest ecosystems?

Clearcutting

How does seed cutting differ from shelterwood cutting?

Seed-cutting is more damaging to the natural environment. b. Shelterwood cutting takes place over several years. Reforestation always occurs as a result of human intervention.

What do most logging methods have in common?

What do most logging methods have in common? They cut Amber laced trees. All logging methods disturb forests communities. Which logging methods has the greatest impact on forest ecosystems?

What are the advantages of shelterwood cutting?

Benefits of the Shelterwood Cutting Timber Harvest Method They use shade to determine what species survive. If they want a tree with a higher shade tolerance, they keep more mature trees standing. This gives their species an advantage over the trees with lower shade tolerance.

Why is selective cutting expensive?

With selective cutting, only some of the trees in an area of forest are cut down at any one time. Selective cutting takes longer, is more expensive, and can be dangerous for loggers working in tight spaces, however, it preserves topsoil and does not expose soil to erosion or streams to sedimentation.

What are 3 methods of harvesting forests?

There are three major groups of timber harvest practices; clearcutting, shelterwood and selection systems. While each are different and are applied to specific forest types, they have three things in common: They provide wood fiber for thousands of every-day products.

What is the Shelterwood approach?

: a method of securing natural tree reproduction under the shelter of old trees which are removed by successive cuttings to admit to the seedlings a gradually increasing amount of light.

Is shelterwood cutting sustainable?

Shelterwood cutting is a more sustainable way of harvesting trees and preserving the environment. However, clear cutting is faster and can create more resources. Though, when clear cutting, the chosen forest is decimated and anything that’s in the way is chopped down (including animals).

Is selective cutting sustainable?

Selective logging—the practice of removing one or two trees and leaving the rest intact—is often considered a sustainable alternative to clear-cutting, in which a large swath of forest is cut down, leaving little behind except wood debris and a denuded landscape.

What does strip cutting mean?

Strip cutting Definition. U.S. Forest Service usage. A clearcutting system variation in which the logging operation removes all merchantable timber from areas that run through a stand and are usually of a width equal to one or two times the general stand height.

Is clear-cutting good or bad?

Clearcuts can be beneficial to wildlife. Clearcutting increases the biological diversity of the forest, which enhances the habitat for a variety of wildlife. Some species of wildlife actually thrive better in brushy thickets of seedlings and small saplings.

Why is selective cutting bad?

Selective logging is causing long-term changes to tropical forests in Africa by facilitating the growth of weeds and vines, which reduces plant diversity and diminishes carbon storage, reports a new paper published in the journal Ecological Research.

What are the pros of clear-cutting?

Clearcutting pros: It creates wide, open spaces with lots of sun exposure. This allows the most sunlight to reach tree seedlings that require full-sun conditions to thrive. Clearcutting also creates forest clearings that are habitat for some species of songbirds, deer and elk.

How long does it take a forest to recover from clear cutting?

65 years

What are the pros and cons of selective cutting?

Some of the disadvantages are that some species may not regenerate quickly, and thinning the forest may lead to increased damage from ice, storms or fires. One of the biggest advantages of selective cutting is that the overall ecological impact on the forest is reduced.

Why is clear cutting not sustainable?

The act of clear cutting is not only damaging to the structure and function of the forest, but in particularly erosion-prone areas the loss of root structures significantly affects water quality, and leads to the loss and fragmentation of nutrient rich soil, creating a lack of regenerative biomass and reduces primary …

Why is clear cutting a problem?

Clearcutting can destroy an area’s ecological integrity in a number of ways, including: the destruction of buffer zones which reduce the severity of flooding by absorbing and holding water; the immediate removal of forest canopy, which destroys the habitat for many rainforest-dependent insects and bacteria; the removal …

How is clear cutting sustainable?

Many species prefer clearings where the sunlight reaches the ground and produces more berries and other food for foraging wildlife. Clearcutting on a sustainable basis creates a more biodiverse and productive landscape than if it were all in dense old-growth.

How can clear felling be sustainable?

The trees have been cut down to stumps across a swathe of woodland. But there are some clues that show this is a sustainable process: It’s been restocked. So this stand will regrow, capture more carbon from the atmosphere and provide wood for timber, bioenergy or whatever else provides a profit for land owners.

What problems can occur if a forest is clear felled?

They say clear-felling, particularly on the short 60-80 year rotations practised in Victoria, is reducing the overall diversity and abundance of wildlife and plant species, lowering water run-off, and, arguably, making forests more vulnerable to fire.

What does coppicing mean?

Coppicing is a traditional method of woodland management which exploits the capacity of many species of trees to put out new shoots from their stump or roots if cut down. In a coppiced wood, which is called a copse, young tree stems are repeatedly cut down to near ground level, resulting in a stool.

What does the word sustainable mean?

meeting our own needs

What are the 4 types of sustainability?

However, it actually refers to four distinct areas: human, social, economic and environmental – known as the four pillars of sustainability. Human sustainability aims to maintain and improve the human capital in society.

What are some examples of sustainability?

There are several examples of sustainable development in the U.S., they include:

  • Green Space.
  • Crop Rotation.
  • Sustainable Design and Construction.
  • Water Efficient Fixtures.
  • Renewable Clean Energy.
  • Waste to Energy Recycling.
  • Water Treatment.

What is sustainability and its importance?

Sustainability supports that mission by striving to improve the environmental health and quality of life for our campus and community. Sustainability is important for many reasons including: • Environmental Quality – In order to have healthy communities, we need clean air, natural resources, and a nontoxic environment.