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85-year-old stand of Douglas fir in the process of transformation to a continuous cover forest. Continuous cover forestry (commonly referred to as "CCF") is an approach to the sustainable management of forests whereby forest stands are maintained in a permanently irregular structure, which is created and sustained through the selection and harvesting of individual trees. [1]
A harvester is a type of heavy forestry vehicle employed in cut-to-length logging operations for felling, delimbing and bucking trees. A forest harvester is typically employed together with a skidder that hauls the logs to a roadside landing, for a forwarder to pick up and haul away. CAT 501 HD with tracked treads
Wall framing in house construction includes the vertical and horizontal members of exterior walls and interior partitions, both of bearing walls and non-bearing walls. . These stick members, referred to as studs, wall plates and lintels (sometimes called headers), serve as a nailing base for all covering material and support the upper floor platforms, which provide the lateral strength along a
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A typical fire lookout tower consists of a small room, known as a cab, atop a large steel or wooden tower. Historically, the tops of tall trees have also been used to mount permanent platforms. Sometimes natural rock may be used to create a lower platform. In cases where the terrain makes a tower unnecessary, the structure is known as a ground cab.
The World Forestry Center is a nonprofit educational institution in Portland in the U.S. state of Oregon. Located near the Oregon Zoo in Washington Park , the organization was established in 1964 [ citation needed ] as the Western Forestry Center , with the actual building opening in 1971.
When the gangway is not in use, they lock outwards to block off the entire cab/gangway compartment. View along full length of a Toronto Rocket , folding seats at the right A gangway connection (or, more loosely, a corridor connection ) is a flexible connector fitted to the end of a railway coach, enabling passengers to move between coaches ...
The system has a capacity of 575,000 barrels of oil a day. [2] The riser platform Forties Unity. FPS consists of a 36-inch (910 mm) pipeline originating at APA Corporation's Forties Charlie platform. The pipeline carries crude oil 169 kilometres (105 mi), routing through the Forties Unity riser platform, to the terminal at Cruden Bay.