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Conference turris::scandia

Title:All about Scandinavia
Moderator:TLE::SAVAGE
Created:Wed Dec 11 1985
Last Modified:Tue Jun 03 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:603
Total number of notes:4325

83.0. "Scandinavian forestry" by TLE::SAVAGE (Neil, @Spit Brook) Mon Apr 07 1986 21:23

    From an article by Michael Cross in "New Scientist" 27 March 1986. 
    
    Already in 1980, Sweden's largest forestry and paper company, Svenska
    Cellulosa Aktiebolaget (SCA) had introduced automation into the forests
    with the development of a harvesting machine.  The harvester combines
    two earlier types of machine, the feller-buncher, which cuts trees
    down and stacks them, and the processor, which limbs, cuts and sorts
    the timber.
    
    The processor is programmed to cut logs according to the thickness
    of the trunk and can deal with a 20-meter tree in seconds while
    the operator selects another tree for felling.  A harvester replaces
    some 20 people working with chain saws and produces 25,000 cubic
    meters of wood a year.
    
    More automation is on the way.  The next innovation will be a planting
    machine, similar to an agricutural planter.  Such a machine will
    have to work well on rough terrain, break up the soil and then plant
    a sensitive tree.  Testing of such a machine is expected to begin
    within two years.
    
    Fully robotic machines, fitted with artifical vision and other sensors,
    are much farther off.
    
    SCA has also been introducing the lodgepole pine (Pinus contorta),
    a species native to Canada, into Swedish forests.  This tree grows
    faster than Norwegian spruce and Scotch pine; lodgepole pines are
    ready for harvest after 40 years rather than the 100 years it takes
    traditional species before they are ready to be felled.
    
    To assuage environmentalists, who complain about the practice of
    clear-felling, SCA is now training foresters to leave rows of tree
    along streams, and to preserve some individual trees as habitats
    for birds and animals.
    
    Swedish foresters face stiff competition from tropical timber
    production where fast-growing eucalyptus trees can be harvested
    in as little as 10 years.  But the pulp produced from tropical forest
    does not have as high quality as that from northern countries. 
    
    Overall the demand for paper pulp is expected to rise.  "The paperless
    office is a myth," says Boerje Dahlin of SCA, "there's nothing like
    a computer for turning out masses of paper" 
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83.1In Sweden, forests are young but extensiveTLE::SAVAGETue Nov 23 1993 12:3661
    From: [email protected] (Anders Sundin)
    Newsgroups: soc.culture.nordic
    Date: 23 Nov 1993 12:54:28 GMT
    Organization: Organic Chemistry 2, Lund University, Sweden
 
 
    We have forests where you can walk for hundreds of kilometres before
    you find a single house. However it is true that almost all forests in
    Sweden bear some marks of cultivation and civilisation, some from
    hundreds of years ago. Examples: For hundreds of years a lot of forest
    was cut to make charcoal for the iron industry. Some mining was
    performed by heating the ore with fires and cooling the ore with water
    to crack the rock. Most of the big oak trees were cut to build huge
    warships.
 
    During the end of the last century and the beginning of this century
    only the best trees were cut for the timber industry. This resulted in
    large areas of the worst kind of forest with dense growth of small
    "bushy" trees where nothing else would grow.
 
    This was changed after WWII. Larger areas were cut at the same time to
    remove low quality trees, and to give light for the new trees. A
    byproduct of this change in forestry was the almost extinct [moose]
    increased enormously in numbers because the harvested areas had lots of
    newly released nutrition for small plants.
 
    During the 70-ties this trend went too far. Increased mechanisation
    made possible to harvest huge areas at the same time. The surrounding
    forest little chance to adsorb all the released nutrition which
    resulted in the pollution of rivers and streams. The harvested areas
    became very hot during summer and very cold during winter. In Sweden
    there were strict laws that regulated the forestry to be this way.
 
    During the late 1980-ties these laws began to be abandoned. It was more
    up to the owner of the forest how the forest should be maintained. The
    trend changed so smaller areas were harvested (1x1 km instead of 10x10
    or even 30x30 km) at the same time.

    Furthermore new laws were introduced to protect wetlands, rare species,
    and the nests of birds of prey. Nowdays the people who work in forests
    have to be well educated in ecology. This means that there will
    continue be many biotypes in the forests of Sweden.
 
    There has never been even close to as much timber in the Scandinavian
    forests as there is today. It is true that the forests are generally
    young, maybe up to 100 years old. However it is wrong to put all of the
    blame on todays methods. Most of the old forests of Sweden were cut
    down 100 years ago or more.

    I wish that some areas could be spared to make "new" old forests,
    however, the question is who will pay. For a company it is close to
    criminal negligence to their shareholders not to harvest a full grown
    forest worth millions.
 
   -Anders
   -- 

    Anders Sundin                   e-mail: [email protected]
    Organic Chemistry 2                     [email protected]
    Lund University, P.O. Box 124   voice:  +46 46 104130
    S-22100 Lund, Sweden            fax:    +46 46 108209
83.2Public opinion and uptake of CO2TLE::SAVAGEThu Dec 09 1993 11:0143
    From: [email protected] (Anders Sundin)
    Newsgroups: soc.culture.nordic
    Subject: The Nordic forests
    Date: 8 Dec 1993 15:59:15 GMT             
    Organization: Organic Chemistry 2, Lund University, Sweden
 
    An investigation by Finska Skogsforskningsinstitutet (Finnish Institute
    of Forestry Research) shows that Finland and Sweden have a net uptake
    of carbon dioxide. For Sweden the uptake is around 1.8 ton carbon per
    person and year. Compare this with Germany and England who pollutes the
    atmosphere with around 3.3 ton carbon per person and year. The reason
    for the net uptake of carbon dioxide in Finland and Sweden is of course
    the large areas of rapidly growing forest.
 
    There have been some very negative articles in German and British
    press about the Nordic countries plundering their forests and
    exterminating species. For this reason Svensk Skog (a group of
    companies and organisations with interests in Swedish forestry, with
    the goal to follow the European environmental debate and opinions, and
    to work as a lobby group) has made an opinion poll.
 
    3000 people in Germany, Holland, and England was asked if their overall
    impression of Swedish forestry was positive, negative, or don't know.
    7% in Germany, 8% in Holland and 25% in England were negative, 54-60%
    had a positive impression.
 
    Those with a positive impression of Swedish forestry motivated their
    answer with a general impression of Sweden as an environmentally aware
    nation.
 
    Most of those with a negative impression of Swedish forestry gave no
    motivation, but among those that did the most common reason was that
    too much forest was cut, that the forests were plundered.
 
    Persons with a large interest in environmental issues had a more
    positive impression of Swedish forestry than others did.
 
  -Anders
  -- 
   Anders Sundin                   e-mail: [email protected]
   Organic Chemistry 2                     [email protected]
   Lund University, P.O. Box 124   voice:  +46 46 104130
   S-22100 Lund, Sweden            fax:    +46 46 108209