Types of logging and their roles

Logging down a tree is called logging. It is a term that is widely used from logging in the garden at home to log production in the forestry industry. Logging in the forestry industry is called logging, thinning, and main logging according to the stage of tree growth, and can be divided into clear-cutting and selective logging depending on the method. From the viewpoint of environmental load and permanent forestry management, selective cutting has been recommended in recent years, but clear-cutting methods have become more diverse and efforts to minimize the environmental load are being sought. In addition to expanding the use of felled timber, it is important to consider the environment and the profitability of forestry.

Differences between clearing, thinning, and main cutting in the growing process

It takes more than a dozen years for the planted trees to grow and be cut down as timber to become commercial products, and it takes several decades for the main cutting to be reached. During that period, a lot of care is required from saplings to young trees, and young trees until they reach the appropriate age for logging. Clearing and thinning are indispensable work toward the goal of main cutting, and at the same time, they are necessary processes to maintain the healthy forest.

The role of clearing

Clearing is the cutting of trees that hinder the growth of young trees and trees that are underdeveloped in order to protect the young trees to be grown. It is also called forest clearing, and most of the time, it is newly planted in the logging traces of stunted trees. Similar to weeding in agriculture, the process is between cutting undergrowth and thinning. Since it removes shrubs, thin saplings, grass and vines, we mainly use brush cutters and sickles. I also use a chainsaw depending on the situation.

The role of thinning

As the trees grow, thinning is done to adjust the density of the forest. Thin out and shine light on the surface to adjust the spacing of the crowded trees. Not only does it promote the growth of the remaining dominant trees, but it also makes it easier for understory vegetation to grow, increasing the effectiveness of water source recharge and sediment disaster prevention.

After clearing 13 Until about the year, it is called thinning and is left as it is, but in general, it is left as it is. 15 Around the year, diameter 12 ~ 13 When it reaches about cm, it will be traded as a product such as scaffolding logs. In some cases, thinning is called thinning after it begins to become a product, and is distinguished from thinning. In addition, it cannot be classified uniformly because it is called thinning for use and has the same meaning as selective thinning.

The essential purpose of thinning is to regulate the density of forests, but as a result, it has both environmental conservation functions and economic activities. It is a highly encouraged task and is supported by the government. However, thinning for subsidies is also conspicuous, and on the contrary, there are many cases where the forest has been devastated. There is a call for reflection on ad hoc policies and the need for long-term planning from a broad perspective.

What is number adjustment cutting?

Logging to maintain the function of disaster prevention forests and protection forests is called number adjustment logging. It is logging that adjusts the number of standing trees in a crowded forest to maintain a healthy condition that is resistant to disasters. It is a type of thinning, and the work is mainly carried out by the local government.

The role of main felling

If thinning is density-adjusted logging, main logging is for sale. As the main source of income in the forestry industry, we cut down trees that have reached the target diameter and age. Trees in the summer contain plenty of water and have a low commercial value, so they are generally done in the dry winter. The judgment of main logging depends on the conditions of each mountain and the management policy, and the suitable age for logging and the diameter class are judged at the stage where the highest commercial value is obtained.

Classification by logging method-Clear-cutting and selective logging-

Logging methods can be broadly divided into clear-cutting and selective logging. In recent years, there has been an increasing tendency toward selective cutting, especially among small-scale forestry workers, due to the devastation of forests caused by clear-cutting in the post-WWII reconstruction and the subsequent reflection of the lack of timber.

Advantages and disadvantages of clear cutting

Clear-cutting is the logging of all trees in a specified area. By definition, clear-cutting is more than twice the height of a tree that is cut down on one side of the clear-cutting area. It is a logging method that has been frequently used so far because it has many merits such as being able to harvest many trees at once and being able to work reasonably at low cost. In most cases, new seedlings will be planted in the logging area, but there are concerns that it will take a long time to grow, the ecosystem will be disturbed, the risk of sediment disasters, and the environmental risks will occur. As a result, the area to be logged is becoming smaller, and various methods are being tried, such as patch clear-cutting, which cuts a predetermined area, and strip clear-cutting, which cuts trees in a line in a straight line.

Advantages and disadvantages of selective cutting

Selective logging is a method of selecting an appropriate amount of trees from the target plots according to the growth of the trees and the demand of the market, and logging them every few to several decades. Logging sites may be planted or left to natural regeneration, which has the advantage of being able to sustainably manage forestry, with less damage to the forest and almost the same landscape. It can be said that it is an ideal logging method that can be considered for the ecosystem and environment. On the other hand, there are also disadvantages such as logging damage to other trees, difficulty in maintaining the road network, and unstable profits and difficulty in making plans. However, it is undeniable that more and more forestry owners are choosing from a sustainable management perspective, and many young self-cutting forestry workers in the limelight now use long-cutting selective cutting practices. increase.

Environmental consideration and multifaceted effective use of wood

Clear-cutting and selective cutting are one of the main cutting methods and are selected according to the plan of the forestry manager. It is natural that various attempts have been made based on the minimum environmental load and profitability. It is necessary to improve the road network in order to consider the environment including disaster prevention and improve profitability. Maximizing the use of felled timber and expanding sales channels are also effective clues. A sustainable society, the global environment, and sustainable forestry management cannot be considered separately.

Expanding the use of thinned wood

Woodworking products are one of the effective uses of thinned wood. It is a handy item that allows you to feel the forest and nature close to you. HAND in HAND sells gems by famous writers online. Part of the proceeds will be donated to forest conservation activities such as thinning. We hope that it will contribute to a sustainable sound material-cycle society.