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108:, weights, etc. The selected trees are then partially cut at the stem and supported by wooden wedges. The stem is then grappled by the helicopter and pulled until the wood breaks at the partial cut. The logged trees are then brought by helicopter to a predetermined roadside location or dropped into open water where they are collected. Some trees are
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Helicopter logging ground crews will cut, clean, and mark the trees before the helicopter starts to work. Ground crews may be able to prepare fewer than six trees per day, and the helicopter will only be needed every few days. Since fewer roads need to be built to the site where the logging is taking
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are recorded. The diameter of the tree is measured at 1.3 metres (4.3 ft) above the ground. The sizes of the trees that are selected are controlled by two things. The minimum size is controlled by the economy, while the maximum size is controlled by the capacity of the helicopter. Once the trees
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irretrievable. Heli-logging allows logging to take place in more remote places. It also allows certain trees to be logged that previously could not be due to their proximity to a structure or pipeline. Logging using helicopters is safer than conventional logging. Falling trees are dangerous for the
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Although there is no direct cost from road construction or expansion, heli-logging incurs high costs. Operation of a helicopter as well as the selection processes and methods increase the cost. The use of a helicopter to transport the stems limits the size and weight of the selected trees more than
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can extract 20,000 cubic metres (710,000 cu ft) of clean, undamaged timber per month. Conventional logging allows the stems to fall. On rocky terrains, this often results in damage to the stems that makes them unusable. On steep terrains, falling trees can slide downhill and become
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is often used in inaccessible areas of forests. Because the use of helicopters reduces the level of infrastructure required to log in a specific location, the method also helps to reduce the environmental impact of logging. It also can increase the productivity in these remote areas.
91:. The trees are selected based on demand for specific types and grades. Before the selection process is complete, the selected trees are bored to check their reliability. The selected trees are then marked and their
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are more common after conventional cable-based logging than heli-logging. Landslide rates following conventional logging are one and a half times more common than landslide rates following heli-logging.
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441:"A comparison of landslide rates following helicopter and conventional cable-based clear-cut logging operations in the Southwest Coast Mountains of British Columbia"
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Heli-logging is also known as standing stem harvesting, which is based on individual tree selection (ITS). The selection process is done by
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191:"Helicopter Logging Productivity on Harvesting Operations in Southeast Alaska, Using Ecologically Based Silvicultural Prescriptions"
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100:. The length of the tree and the diameter at its top are then recorded. All the recorded data is then entered into a
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place, and trees are extracted vertically, there is reduced damage to the surrounding trees and ground surface.
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415:"4. Helicopter harvesting in the hill mixed dipterocarp forests of Sarawak - Danny Chua Kee Hui*"
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233:: Pacific Northwest Research Station, U.S. Dept. of Agriculture, Forest Service: 2.
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224:"Helicopters for Logging: Characteristics, Operation, and Safety Considerations"
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Helicopter logging in the United States started in late 1971. Jack
Erickson, of
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Research by
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282:"Origin Story: The Beginning of Heli-logging with Jack Erickson, Part 1"
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are selected they are climbed, the limbs are removed and the trees are
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Erickson Inc. | Civil and
Military Aviation, and MRO, OEM Services
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Roberts, Brian; Ward, Brent; Rollerson, Terry (1 August 2004).
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by lifting them on cables attached to a helicopter. Helicopter
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before being de-limbed, and then picked up by the helicopter.
390:"Logging Masters: On a heli-logging job with VIH Helicopters"
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35:, or helicopter logging, is a method of logging that uses
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Christian, Linda E.; Brackley, Allen M. (1 April 2007).
308:"As It Was: Helicopter Logging Takes Flight in 1970's"
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20:Tandem-rotor helicopter lifting a log
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400:from the original on 30 August 2021.
280:Busch, Samantha (14 December 2021).
120:Heli-logging is efficient: a single
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195:Western Journal of Applied Forestry
388:Johnson, Oliver (30 August 2021).
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348:, North Island Woodlands Div
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339:"Standing Stem Harvesting"
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930:Sustainable management
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312:Jefferson Public Radio
261:Cite journal requires
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655:Sustainable forestry
73:Columbia Helicopters
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1017:Forest degradation
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306:Charles Ter Bush.
175:2009-06-04 at the
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445:Geomorphology
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149:Disadvantages
148:
146:
143:
138:
134:
132:
128:
123:
122:S-64 Skycrane
115:
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107:
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63:
55:
53:
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46:
42:
38:
34:
26:
18:
2216:
2194:
2112:Hand compass
2064:Steam donkey
2016:
1949:Lumber edger
1934:Crosscut saw
1879:Log splitter
1804:Fire flapper
1759:Tree caliper
1727:Inclinometer
1712:Cruising rod
1661:(Tuley tube)
1659:Tree shelter
1655:(dibble bar)
1643:Root trainer
1517:
1503:
1489:
1475:
1461:
1447:
1440:
1418:Tree planter
1398:Resin tapper
1378:Truck driver
1373:River driver
1122:Tree hugging
1107:
1090:
1057:timber mafia
1047:High grading
1032:Ghost forest
1002:Clearcutting
925:Silviculture
901:Horticulture
745:Fire ecology
660:Urban forest
635:Mycoforestry
595:
591:Agroforestry
572:
565:
558:
551:
544:
539:Forest areas
537:
530:
476:. Retrieved
448:
444:
434:
422:. Retrieved
418:
394:Vertical Mag
393:
383:
362:cite journal
350:. Retrieved
315:. Retrieved
311:
301:
289:. Retrieved
285:
275:
254:cite journal
242:. Retrieved
217:
198:
194:
184:
170:Heli-Logging
165:
152:
139:
135:
119:
82:
66:
59:
33:Heli-logging
32:
31:
2329:Helicopters
2307:Woodworking
2177:Woodchipper
1969:Two-man saw
1884:Marking axe
1865:(shake axe)
1764:Wedge prism
1737:Rangefinder
1697:Angle gauge
1684:Mensuration
1617:Caulk boots
1442:WikiProject
1366:smokejumper
1346:Firefighter
1309:Occupations
1293:Woodworking
874:Forestation
805:restoration
760:informatics
625:Ecoforestry
478:20 February
424:20 February
419:www.fao.org
352:20 February
317:20 February
291:20 February
244:20 February
37:helicopters
2323:Categories
2195:Categories
2017:Helicopter
1858:Brush hook
1692:3D scanner
1665:Tree spade
1638:Pottiputki
1388:Lumberjack
1383:Log scaler
1266:engineered
1217:non-timber
1190:sawmilling
1142:Industries
1109:svedjebruk
820:transition
800:protection
790:old-growth
775:governance
730:Dendrology
680:management
546:Ministries
158:References
142:landslides
116:Advantages
2227:equipment
2205:equipment
2157:Tree tyer
2137:Log flume
2117:Hand hook
2047:Skid cone
2042:Pike pole
2037:Pickaroon
2022:Log truck
2012:Harvester
2002:Forwarder
1992:Cant hook
1826:(rakehoe)
1809:Fire rake
1799:Driptorch
1754:Relascope
1749:Microtome
1648:Seed trap
1596:equipment
1336:Ecologist
1249:Tree farm
1150:Coppicing
1092:chitemene
992:Acid rain
940:allometry
862:SmartWood
810:secondary
795:pathology
770:inventory
708:driftwood
574:Arbor Day
473:0169-555X
131:utilities
93:diameters
89:surveyors
85:engineers
2262:Forestry
2252:Cleaning
2132:Log pond
2092:Denailer
2007:Go-devil
1944:Head saw
1917:Chainsaw
1853:Broadaxe
1848:Billhook
1819:Helitack
1624:(hoedag)
1589:Forestry
1537:Category
1351:handcrew
1321:Arborist
1316:Forester
1276:mahogany
1222:palm oil
1212:charcoal
1197:Products
1132:Wildfire
945:breeding
906:GM trees
755:dynamics
567:Journals
560:Colleges
520:Forestry
398:Archived
173:Archived
102:database
2287:Masonry
2277:Kitchen
2217:Commons
2142:Machete
2052:Skidder
1984:Logging
1974:Whipsaw
1954:Polesaw
1939:Dragsaw
1912:Bucksaw
1907:Bow saw
1869:Hatchet
1830:Pulaski
1633:Mattock
1547:Outline
1361:lookout
1356:hotshot
1237:tanbark
1207:biomass
1202:biochar
1180:plywood
1165:Logging
1069:wilding
718:log jam
675:Ecology
453:Bibcode
239:2064005
127:loggers
106:volumes
79:Process
56:History
49:logging
45:forests
2297:Mining
2267:Garden
2162:Tsakat
2069:Yarder
2032:Peavey
1874:Labrys
1824:McLeod
1622:Hoedad
1393:Ranger
1341:Feller
1326:Bucker
1232:rubber
1175:lumber
985:topics
972:volume
967:height
913:i-Tree
750:Forest
703:coarse
698:Debris
597:dehesa
471:
237:
110:felled
98:topped
2302:Power
2222:tools
2200:tools
2085:Other
2074:swing
1964:Resaw
1787:DC-10
1742:laser
1707:Chain
1592:tools
1227:rayon
962:girth
957:crown
918:urban
815:stand
723:slash
713:large
584:Types
532:Index
342:(PDF)
227:(PDF)
43:from
41:trees
2272:Hand
1899:Saws
1863:Froe
1840:Axes
1792:UAVs
1594:and
1286:teak
1271:fuel
1261:Wood
1081:REDD
935:Tree
852:PEFC
837:ATFS
480:2023
469:ISSN
426:2023
375:help
354:2023
319:2023
293:2023
267:help
246:2023
235:OCLC
87:and
857:SFI
847:FSC
842:CFS
780:law
765:IPM
677:and
461:doi
203:doi
2325::
467:.
459:.
449:61
447:.
443:.
417:.
406:^
396:.
392:.
366::
364:}}
360:{{
344:.
327:^
310:.
284:.
258::
256:}}
252:{{
229:.
199:22
197:.
193:.
133:.
1606:,
1581:e
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512:e
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498:v
482:.
463::
455::
428:.
377:)
373:(
356:.
321:.
295:.
269:)
265:(
248:.
211:.
205::
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
