Selection cutting in California, May 1972The results of selective cutting of Ponderosa Pine
Selection cutting, also known as selection system, is the silvicultural practice of harvesting trees in a way that moves a forest stand towards an uneven-aged or all-aged condition, or 'structure'. Using stocking models derived from the study of old growth forests, selection cutting, also known as 'selection system', or 'selection silviculture', manages the establishment, continued growth and final harvest of multiple age classes (usually three, but 5 or even 10 are possible) of trees within a stand. A closely related approach to forest management is Continuous Cover Forestry (CCF), which makes use of selection systems to achieve a permanently irregular stand structure.[1]
Selection cutting or systems are generally considered to be more challenging to implement and maintain than even-aged management, due to the difficulty of managing multiple age classes in a shared space, but there are significant ecological benefits associated with it. Uneven-aged stands generally exhibit higher levels of vertical structure (key for many species of birds and mammals), have higher levels of carbon sequestration, and produce a more constant flow of market and non-market forest resources than even-aged stands.[citation needed] Although a forest composed of many stands with varied maturity ages maybe comparable, this would be at the forest rather than the stand level. This silvicultural method also protects forest soils from the adverse effects of many types of even-aged silviculture, including nutrient loss, erosion and soil compaction and the rapid loss of organic material from a forested system. Selection silviculture is especially adept at regenerating shade-tolerant species of trees (those able to function under conditions of low solar energy, both cooler and less light), but can also be modified to suit the regeneration and growth of intolerant and mid-tolerant species. This is one of many different ways of harvesting trees. Selection cutting as a silvicultural system can be modified in many ways and would be so done be a forester to take into account varied ownership goals, local site conditions and the species mix found from past forest conditions.[2]
^Helliwell R., Wilson E. R. (2012). "Continuous cover forestry in Britain: challenges and opportunities". Quarterly Journal of Forestry. 106 (3): 214–224.
^Silviculture: Concepts and Applications 2nd Edition by Ralph D. Nyland
Selectioncutting, also known as selection system, is the silvicultural practice of harvesting trees in a way that moves a forest stand towards an uneven-aged...
grading. It is sometimes called selective logging, and confused with selectioncutting, the practice of managing stands by harvesting a proportion of trees...
1955. By insisting on selectioncutting, he tried to protect the watersheds and wildlife habitats that are harmed by clear-cutting. After he retired in...
self-published the albums A Jason Mraz Demonstration (1999), From the Cutting Room Floor (2001), and On Love, In Sadness (The E Minor EP in F) (2001)...
Carl Arbogast, compiler of the eponymous Arbogast Method used in selectioncutting silviculture Louis François Antoine Arbogast (1759 – 1803), a French...
are used to manufacture wooden pallets:[citation needed] Material selectionCutting wood plate / block Chamfering (depends on the demand) Notching Nailing...
hardwood in the western reaches of the forest experienced larger scale selection-cutting beginning in the mid-20th century. Because of the highly seasonal...
“cut the best and leave the rest”, and should not be confused with selectioncutting. Over time, high grading gives rise to forest stands containing stems...
regulated pine industry in the late 15th century?), earlier regulated selectioncutting in southwestern Germany and especially in Switzerland? Effects of...
strength and material selection may be limited. Abrasive machining Abrasive flow machining Abrasive jet machining Biomachining Cutting Design for manufacturability...
logging take place throughout the park including clear cutting, selectioncutting and shelterwood cutting. As of 2009[update], the Algonquin Forestry Authority...
the selection and cutting of the tree to be used, to the final dance after all voladores have descended from the pole. The tree selection, cutting and...
for introducing the "Borggreve method", a silvicultural process for selectioncutting of trees. He received his education at the Forestry Academy in Eberswalde...
research area and on the south western part of the lake clear cutting and selectioncutting was planned for 2020-2021 The shoreline around the entire lake...
common method to extract peat during the 19th and 20th centuries was peat cutting, a process where the land is cleared of forest and subsequentially drained...
The art of paper cutting (Chinese: 剪紙; pinyin: jiǎnzhǐ) in China may date back to the 2nd century CE, when paper was invented by Cai Lun, a court official...
subject to adjustment depending on the cutting conditions. The following table gives the cutting speeds for a selection of common materials under one set of...
attract females, and the showy features of the males had evolved by sexual selection. More recently, Amotz Zahavi proposed in his handicap principle that these...
than outdoor display is known as a cutting garden. It is usually only a feature of large residences. The cutting garden is typically placed in a fertile...
instance of clearcutting "heartbreaking" and said that she preferred selectioncutting. In 2017, the town bought a 36.2-acre (14.6 ha) property from the...
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