gros bois/bois moyens/petits bois
English translation: large/medium/small diameter wood
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| 20:12 Aug 29, 2006 |
| French to English translations [PRO] Tech/Engineering - Forestry / Wood / Timber / Forest management | |||||||
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|  Selected response from: Bourth (X) Local time: 15:22 | ||||||
Grading comment
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| Summary of answers provided | ||||
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| 3 +1 | large/medium/small diameter wood |
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| 4 | these are not tree size classes |
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| Discussion entries: 1 | |
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Answers
28 mins confidence: 
peer agreement (net): +1
peer agreement (net): +1large/medium/small diameter wood Explanation: The first and the last of the trilogy get a good number of hits, but there is not a lot for "medium diameter". I give below my "stream-of-googling" results. Referred to as large/medium/small trees in: www.selectfor.com/articles/Oak ash CCF Project Part 2.pdf For dimensions: classes de diamètre ont été distinguées : petit bois (PB, moins de 30 cm), bois moyen (BM,. entre 30 et 60 cm), gros bois (GB, de 60 à 90 cm) et très gros ... biomserv.univ-lyon1.fr/txtdoc/THESES/TRAISSAC/TheseTRAS.pdf However, the English terms used above refer to heights rather than diameters: Small trees (to 25'), 6' to 10', 5' to 8'. Medium trees (25'-50'), 10' to 15', 8' to 12'. Large trees (50'+), 15' to 20', 10' to 15' ... www.lpb.org/programs/forest/plantguide.html SMALL TREES 30' or less, MEDIUM TREES 30-70', LARGE TREES 70' or more. Blue Beech Crabapple * Dogwood * Eastern Red Cedar Flowering Plum Hawthorn Hornbeam ... www.state.tn.us/agriculture/forestry/storm/selecting.html But, diameter also comes into it: The best watering method depends upon whether you have a small (1-7” diameter), medium (8-15” diameter) or large sized (16”+ diameter) tree. http://www.coopext.colostate.edu/4DMG/Trees/caring.htm "Providing a cost effective way to transport small-diameter wood enables small business to take on the thinning projects that do not interest larger ... www.srs.fs.usda.gov/newsroom/newsrelease/2003/nr_2003-04-16... Cordwood: Small diameter wood suitable for pulp, chips, or firewood but not for sawlogs. Core Drilling: The process by which a cylindrical sample of rock ... fwie.fw.vt.edu/rhgiles/appendices/glossc.htm Medium diameter: wood diameter is 16–28 cm. Table 12. Probability–likelihood ratio of timber age generated with respect to landslide. occurrence. ... taylorandfrancis.metapress.com/index/BVK6CNWEL0V0Q03B.pdf Domestic supply of large diameter wood is limited -> imports of. large diameter wood needed from other countries. Introduction of new technology for ... www.cintrafor.org/CONFERENCE_TAB/China Conf 2006/Chan 2006.... Standing volume of large diameter wood during the last half of the plan; Harvested volume of large diameter wood during the last half of the plan ... silvae.cfr.washington.edu/satsop-plan/objectives/satsopcommodities.html Only two varieties here: Sawlog (large diameter wood) is and will remain for the foreseeable future the most profitable product that a farm forest can produce. Sawlog can be produced quicker by carrying out thinning. Large volumes of pulpwood (smaller diameter wood) are produced in earlier thinnings. Local energy wood markets need this pulpwood and will make these thinnings more financially viable, particularly for smaller plantations. http://www.teagasc.ie/publications/2006/20060703.htm "Timber harvesting removes the relatively large diameter wood that can be converted into wood products, but leaves behind the small material, ... www.landscouncil.org/wildfire/wildfire.htm Clear, strong, large diameter wood will provide the widest range of future options. This group felt that management practices designed to produce this type ... www.fpl.fs.fed.us/documnts/pdf2000/zabor00a.pdf -------------------------------------------------- Note added at 59 mins (2006-08-29 21:11:51 GMT) -------------------------------------------------- Just fancied my chances finding something with "calibre", to no avail, but did come up with this: Forest managers and scientists classify the size of trees by measuring tree diameter 4.5 feet (1.37 m) above the ground. This is the breast height of an average man, hence, the term diameter at breast height, or DBH. Based on diameter measurements, trees can be classified into the following size categories: Tree Size Categories Based on DBH Regeneration <3 inches <7.5 cm Sapling/poles 1-9 inches 2.5-24 cm Small trees 10-14 inches 25-37 cm Medium trees 15-19 inches 38-49 cm Large trees 20-29 inches 50-75 cm Giant trees >29 inches >75 cm http://cse.pdx.edu/forest/forest_class_size.htm This does not sit well with the above, however: petit bois (PB, moins de 30 cm), bois moyen (BM,. entre 30 et 60 cm), gros bois (GB, de 60 à 90 cm) et très gros ... |
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17 hrs confidence:
these are not tree size classes Explanation: Go to this web page where you'll find how a tree is stratified in three sections by foresters assessing its timber potentials: http://www.boisenergie.ifn.fr/lexique.php The lower section of the stem is called "bille de pied" in French and for timber exploitation purposes is the butt log containing the "bois fort commercial", i.e. the tree section containing the highest timber volume. The upper section of the tree stem (up to the collar) is "petit bois", and the reason why it is called so is self-explanatory. The crown contains the "menu bois" yielding smaller diameter logs. In this particular stand ("a futaie jardinée"), silvicultural work and thinning operations were conducted in a way that would promote timber yields in "gros bois" (i.e. larger diametre classes from lower stem sections) in all or most of all tree age classes, and only small quantities of "petit bois" from upper tree strata. -------------------------------------------------- Note added at 17 hrs (2006-08-30 13:39:33 GMT) -------------------------------------------------- Note that this nomenclature (cf. the web link) is from the official French Forest Inventory website. (Inventaire forestier national, IFN). |
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