What is the standard type of Shelterwood?
Shelterwood system definition A good understanding of stand dynamics of old forests is required for shelterwood prescriptions in over mature forests. In uniform shelterwood systems, treatments are applied uniformly over the same stand: this is the standard type of shelterwood.
What is tropical shelterwood system?
The Nigerian tropical shelterwood system (T.S.S.) was a major management preoccupation of the Forestry Service in western and mid-western Nigeria during the 1950s, and altogether about 200 000 hectares of forest were treated under this system.
What is uniform shelterwood system?
Uniform system or uniform shelterwood system. If the canopy is opened out evenly young crop more or less even-aged and uniform. ii. Group shelterwood system. If the canopy is opened out by creating scattered gaps, young crop more or less even-aged.
What is an irregular Shelterwood?
The irregular shelterwood system, defined as a system of successive cuttings with a long or indefinite regeneration period, offers the flexibility of generating spatial and vertical heterogeneity in stands (Matthews 1989).
What are the three parts of a silvicultural system?
All silvicultural systems include three basic components: harvest, regeneration and tending. These components are designed to mimic natural processes and conditions fostering healthy, vigorous stands of trees.
What is silviculture system?
Silviculture is the practice of controlling the growth, composition/structure, and quality of forests to meet values and needs, specifically timber production. Adaptive management is common in silviculture, while forestry can include natural/conserved land without stand-level management and treatments being applied.
What is a silviculture system?
A silvicultural system is a planned program of silvicultural treatments designed to achieve specific stand structure characteristics to meet site objectives during the whole life of a stand. Silvicultural systems on most sites have been designed to maximize the production of timber crops.
How does Shelterwood work?
Shelterwood harvesting is an even-aged system used to establish and develop desirable natural regeneration. By removing a mature stand in two to three cuts over five to 20 years, more sunlight reaches the forest floor to stimulate seedling development.
How 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).
How is the irregular shelterwood system used in management?
The irregular shelterwood system is very versatile and can be applied inuniform, strip, or group spatial variations (i.e., irregular group or irregular strip shelterwood). This irregular shelterwood system is usually used to promote structural diversity while maintaining the simplicity of even-aged management.
What kind of cuttings are used in a shelterwood system?
Shelterwood systems may include preparatory cuttings, establishment cuttings, and one or more overstory removal cuttings: Preparatory cuttings are sometimes, but not always, the first step in a shelterwood regeneration system.
What’s the difference between a seed tree and a shelterwood?
While it is tempting to set arbitrary densities that will differentiate between seed tree and shelterwood systems at the regeneration or seed cut phase, such categories may in fact lose sight of the intent of the systems. If the leave-trees are to be maintained just for their seed, the system should be called a seed tree system.
Where was strip and group shelterwood system developed?
The strip and group shelterwood system was developed chiefly in Bavaria by H. von Huber, chief of the Bavarian Forest Service. It is now widely used in central Europe.