Which of the following timber harvesting methods is most devastating to the ecosystem of the original forest?

3 methods of timber harvesting from the most damaging to the most sustainable is clear- cutting, which is completely cutting all trees to a stump in a certain area. The seed-tree approach where small numbers of mature vigorous seed producing trees are left standing so that they can reseed the logged area.

Which of the following forest management process involves only removing mature aged or middle aged trees?

Selective cutting: Intermediate-aged or mature trees in an uneven-aged forest are cut singly or in small groups.

What special problems are associated with waterfowl?

Special problems associated with waterfowl management include protection of summer nesting areas, prevention of pond and lake drainage, the development of refuges as havens form hunters, and the protection of food and sheltering the overwintering areas.

Which of the following refers to the removal of all trees in an area at one time?

A “clearcut” means a silvicultural system that removes the entire stand of trees in a single harvesting operation from an area that is about two acres or greater; and at least two tree heights in width, and is designed to manage the area as an even-aged stand.

Is clear cutting sustainable?

As long as a clearcut has been carefully planned using sound forestry principles, and is carried out using proper erosion-control practices, it is consistent with sustainable forest management.

What does Clear Cutting do to environment?

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 …

What is clear cutting a forest?

Clearcutting is a method of timber harvest. It involves cutting all the trees in an area at one time. 2. Clearcutting is used as a method of regenerating or rejuvenating certain kinds of trees that cannot tolerate shade.

What are 3 ways that humans directly alter ecosystems?

Name three ways humans directly alter ecosystems. We change ecosystems by replacing them with agricultural ecosystems, we alter species by introducing plants and animals, and we reduce populations by harvesting trees and animals for our use.

What are the major causes of biodiversity loss in marine ecosystems?

Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming.

Why is clear-cutting the most controversial type of harvesting trees?

Why is clear-cutting the most controversial type of harvesting trees? Clear-cutting leaves only a few mature trees uncut to provide shelter for seedlings as they grow. Clear-cutting can cause significant erosion and flooding and destroys wildlife habitat.

How is clear-cutting a less sustainable method?

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 …

What are the advantages and disadvantages of clear cutting?

What Are Some Advantages & Disadvantages of Clear Cutting?

• Pro: Financial Reasons. Clearcutting advocates argue that the method is the most efficient for both harvesting and replanting trees.
• Con: Effects on Plant and Wildlife.
• Pro: Increased Water Flow.
• Con: Loss of Recreation Land.
• Pro: Increased Farmland.

What is the clear cutting harvest method?

Clear Cutting Harvest Method: This involves removing large sections of forest, dozens of acres at a time, and either replanting within two years, or allowing natural regeneration to occur. Supporters of this method claim that certain trees grow better in clear cut areas because it allows the saplings full sunlight and more room to grow (Moore).

What are the disadvantages of clear cutting?

An Outdated Method: While trees are indeed a valuable renewable resource, the way in which we harvest them does more damage than good. Clear cutting has become an outdated method that we can no longer rely on. It causes a loss in the natural biodiversity of the forest.

How much timber can be harvested by selective cutting?

According to Merve Wilkinson, a Canadian land owner and esteemed author on alternative forestry, over a forty-five year period he has been able to harvest over 1,670,000 board feet of timber from his property using the selective cutting method.

Do trees grow better in clear cut areas?

Supporters of this method claim that certain trees grow better in clear-cut areas because they allow the saplings full sunlight and more room to grow (Moore). After sixty years, the young trees that regenerated are clear cut, and the process begins all over again. Clear cutting in Oregon.