Underwater woodfalls

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In underwater wood felling , trees that lie below the water level of mostly artificially created water surfaces ( reservoirs , dams , canals ) are felled and brought over the surface of the water.

The trees that used to stand freely in the affected areas were completely covered with water by the flooding of valleys or the expansion of waterways, and the remaining trees were artificially preserved by depriving them of oxygen .

Logging

In manual wood harvesting, individual trees standing under water are first fixed by divers with steel ropes and provided with plastic barrels for buoyancy. Then the trunks are sawed off by the divers at the bottom of the water using hydraulic chainsaws operated by the escort boat . The trunks reach the surface of the water through the buoyancy barrels. Later the " harvested " trunks are dragged ashore by boat. The laborious manual dismantling is only worthwhile for valuable trees, such as the tropical underwater trees on the banks of the Panama Canal .

A logging company based in Vancouver , Canada , Triton Logging Inc. , specializes in the large-scale mining of underwater timber. For this purpose, it operates a specially developed diving robot ( called Sawfish ), which, according to the company, can fell up to 50 logs per dive underwater.

Others

Since the underwater trees have died a long time and consequently can no longer bind CO 2 , the current degradation of these wood stocks is ecologically harmless.

In 2009 it was assumed that there are still around 300 million trees under the surface of artificially created lakes and canals.

See also

Web links

Individual evidence

  1. ↑ http://www.prosieben.de/tv/galileo/videos/clip/162485-making-of-unterwasserbaumfaeller-teil-1-1.2493781/
  2. ↑ http://www.prosieben.de/tv/galileo/videos/clip/162500-making-of-unterwasserbaumfaeller-teil-2-1.2493786/
  3. ↑ Archived copy ( Memento of the original dated December 6, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.tritonlogging.com
  4. ↑ http://www.stockcreatorblog.de/?p=2904