Thursday, 28 July 2016

lumbering


LUMBERING IN THE FOREST ON THE PACIFIC COAST OF NORTH AMERICA;
Depsite the long active exploitation of the forest on the pacific coast lumbbering is still the outstanding industry of northwestern United States and western canada.The pacific forest contain some on the finest and most useful timbers in the world and are now the leading source of supply for the united states and canada.North of san francisco they cover tremendous area on the slopes of the coast ranges sierra nevda's and cascades and extend as far north has central alaska.A significant advantages of these forest lies in their manner of occurence in thick growing almost pure stands.Valuable species are coniferous softwoods,including the majeistic. Douglas fir which reaches a diameter of 6 feet or more and a height of more than 260 feet.Its strong  durable word of medium weight it to all kinds of constructions.
Methods of logging depend to considerable extent upon the chracter of the timber and climate and physiographic conditions.Logs are skidded to main roadways or railways lines.Nearbly all mills have access to road and rail as well as water transportation.Becuase of the indented coastlined much valuable timber is within a distance of few km of coastal mills...
LUMBERING IN THE ROCKY MOUNTAINS;
In the region of rocky mountains in canada the united states and their southern extensions in  mexico there are forest of considerable importance.Lumbermen in these forest use all the logging methods employed in the pacific area and in addition various transportation from seemingly inaccessible places.An active market is furnished by the farming population of adjacent plains and plateaus.
LUMBERING IN THE TEMPERATURE FORESTS OF EURASIA;SOFT WOOD FOREST:
Except for coastal marshes and highh moorlands most of europe north of the mediterranean sloped is naturally a forest region.But much of the original forest was cut long ago.As they grow faster than hardwoods, coniferous forest have received much attention.Germany,france, belgium, and denmark are leaders in caring for their forests.Forests in many of these countries are so carefully supervised to prevent excessive cutting that most sawmills are small compared with those in pacific coast forests.These mills reduce wood as much as possible though these forests yield abundant materials under proper utilization import forest products from adjacent areas especially northern europe.

TROPICAL HARD WOODS EQUATORIAL EVERGREEN AND MONSOON FORESTS;
These forests are generally found in the tropical monsoon and equatorial regions of the world.They are ever green bread leaved trees grown in the areas where there is no dry season and heavy rainfalls throught out the year.Due to extremes heat and moisture the growth is dense and luxuriant.Where rainfall is less deciduous forests teak and sail type trees are found some if them are highly valuable......

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