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首页> 外文期刊>Australian Forestry >Wood and fibre productivity potential of promising new eucalypt species for coastal Zululand, South Africa.
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Wood and fibre productivity potential of promising new eucalypt species for coastal Zululand, South Africa.

机译：南非沿海祖鲁兰有希望的新桉树物种的木材和纤维生产力潜力。

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摘要

In South Africa, pressure is increasing to improve the quantity and quality of eucalypt wood being produced from the existing forestry land base, and to identify species that would enable profitable forestry on land currently considered marginal. In a series of site x species interaction trials established on the Zululand coastal plain in South Africa during 1992, alternative eucalypt species were compared with a number of commercial eucalypt species and clones at three sites. At rotation age of 7 years, the wood and fibre productivity of the five most promising new species, namely Corymbia [Eucalyptus] henryi, C. citriodora subsp. citriodora, Eucalyptus longirostrata, E. pilularis and E. tereticornis, was assessed at two of the sites. On the basis of merchantable wood production, E. longirostrata provenance showed excellent potential for high productivity (wet) sites on the Zululand coastal plain, and C. citriodora subsp. citriodora and C. henryi showed excellent potential for marginal (moderately dry) sites. On the basis of fibre production, E. longirostrata and C. henryi showed excellent potential for high productivity sites, and C. citriodora subsp. citriodora and C. henryi showed excellent potential for marginal sites. E. longirostrata could be a good partner for E. grandis and E. urophylla for the production of hybrids better adapted to the range of environmental conditions in coastal Zululand than either of the latter two species. In such hybrid combinations, the high basic wood density of E. longirostrata could be of advantage to the local hardwood wood chip export industry..
机译：在南非，越来越大的压力要求改善从现有林地基地生产的桉木的数量和质量，并确定能够使目前被认为边缘化的林业能够盈利的树种。在1992年于南非祖鲁兰沿海平原建立的一系列“地点x物种”相互作用试验中，将替代桉树物种与许多商业桉树物种和三个地点的克隆进行了比较。在7岁的轮换年龄下，五个最有前途的新物种，即Corymbia [Eucalyptus] henryi，C。citriodora subsp。的木材和纤维生产力。在两个地点对柠檬酸，长桉树，pilularis大肠杆菌和tereticornis大肠杆菌进行了评估。基于商品木材的生产，E。longirostrata的出处在祖鲁兰沿海平原和C. citriodora亚种上显示出极高的潜力，可用于高产（湿）地点。柠檬绿和C. henryi对边缘（中等干燥）部位显示出极好的潜力。在纤维生产的基础上，E。longirostrata和C. henryi在高产地和C. citriodora亚种上显示出极好的潜力。柠檬绿和C. henryi在边缘部位显示出极好的潜力。 E. longirostrata可能是E. grandis和E. urophylla的良好合作伙伴，与后两个物种中的任何一个相比，E。longirostrata都更适合于祖鲁兰沿海地区的环境条件。在这样的混合组合中，E。longirostrata的高基本木材密度可能对当地的硬木碎木出口行业有利。

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