"Pitsawying the last large local pod mahogany"

September 17, 2018
contest: CHANGE in Wood Culture - Environment
$ 4800
"Pitsawying the last large local pod mahogany" /media/flashcomm?action=mediaview&context=normal&id=42806
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Tony Cunningham
Australia
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Using a technique that is no longer used in Europe, but is still widely used in East Africa, two pitsawyers accurately cut an Afzelia quanzensis into planks for local use to make doors and beds in southern Tanzania. This entire genus has magnificent red wood....but large trees are caught between both national and international demand. Niether are sustainable. The same problem faces the Asian dry forest Afzelia (A. xylocarpa), which is heavily over-exploited in both Thailand and Cambodia. Growth rates of Afzelia quanzensis and A. xylocarpa both range from 2-3mm/yr. Few studies have been done on population structure of A. quanzensis, but Gerhardt and Todd (2009) showed that few seedlings made the transition to the juvenile tree stage. In the case of A. xylocarpa, the oldest trees were at least 257 yrs old and that no A. xylocarpa in the populations studied were less than 135 yr old.

Categories: Nature Photography

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