![]() ![]() The world demand for vegetable tannins has remained unchanged over the past two decades due to intense competition from synthetic tannins. ![]() Acacia mearnsii bark tannins are used in the leather industry, adhesives for wood composites, water flocculants and specialty products for the chemical, food and beverage industries. At present the only significant secondary products are charcoal and firewood. In South Africa, the timber provides 85% of the revenue and the bark the other 15%, and thus the commercial emphasis has shifted from bark to timber. Due to the high prices fetched by the wattle woodchips in the international market, black wattle is a profitable crop. In both countries black wattle is mainly cultivated by farmers (c. The current total planted area to black wattle is 110 000 ha in South Africa and c. ![]() This study provides an updated overview of the black wattle industries in both countries, including planted areas and land ownership, silviculture and management, bark extract production, woodchip exports, as well as key research and development issues. Acacia mearnsii De Wild (black wattle) is an important plantation species for tannin production and woodchip exports in South Africa and Brazil. ![]()
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