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Author Topic: HELP! 'describe the typical work day of a logger!'  (Read 8957 times)

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Offline timberuk

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Re: HELP! 'describe the typical work day of a logg
« Reply #20 on: October 25, 2001, 12:13:16 PM »
Bill,

Most of our harvesting is thinning, removing about 40/50 tonnes/ha. We have a system called Yield Class. In case you have something different, I'll briefly explain it. If you use it over there...ignore!

A Yield Class is a measure of the increase in volume per hectare per year. So a YC16 Sitka is growing at the rate of 16 cubic metres a year. The usual wisdom is to thin out 70% of the YC per year. Thus 70% of 16 =11.2...multiply by the thinning cycle, say every 5 years, gives a thinning weight of 56 cubic metres to be removed every thinning. The same system also tells us when the ideal time is for clearfelling and replant, ie when the growth rate begins to fall. In practice, the threat of windblow usually dictates that we clear before that point is reached.

As for the clear fell areas..with the UK being relatively small and over-populated, practically every forest is in constant view. So the visual impact often restricts us to small areas. I have never done more than a 10 ha block, and the edges often have to be filtered and uneven. When replanting, there is now a legal obligation to include, I think, 15% broadleaves/open ground.

Well, my brain is tired now! And I've had 2 teeth filled today, and the drugs are wearing off..so...see you tomorrow.


Norman
I don't do it for the money, so it must be for the love.

Offline Corley5

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Re: HELP! 'describe the typical work day of a logg
« Reply #21 on: October 25, 2001, 06:29:39 PM »
Norman,
 What kind of saws are you running over there?  Is your tractor a regular farm tractor or is it a machine built especially for the woods? and what make is it?  Great story thanks!
Burnt Gunpowder is the Smell Of Freedom

Offline timberuk

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Re: HELP! 'describe the typical work day of a logg
« Reply #22 on: October 26, 2001, 01:38:49 AM »
Greg,

Huskys are the most popular saws here. I use a 254 and 346. Stihls are used mostly by farmers. As a matter of interest, a new 346 costs about $550.

The tractor is a standard Case 1694 4WD, much abused but still alive!
I don't do it for the money, so it must be for the love.


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