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首页> 外文会议>PEERS Conference >Development of a Eucalyptus Plantation Program in the Southeastern United States and Higher Elevations of Southern Brazil - A Status Update
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Development of a Eucalyptus Plantation Program in the Southeastern United States and Higher Elevations of Southern Brazil - A Status Update

机译：在美国东南部的桉树种植计划和南方南部海拔高度的发展 - 一个地位更新

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MWV Forestry has been actively pursuing the establishment of cold/frost tolerant eucalyptus plantations in Southeast Texas and in the higher, frost prone regions of Southern Brazil for several years. Currently, the major species being examined is E. benthamii. Interspecific crossing efforts, cold tolerance established from field trials, and inter-country cooperation in this program are discussed. The ability of the Southeastern Texas program to return value to our collaborators in Southern Brazil and other locations is reviewed. Pulp and papermaking properties of the cold tolerant species are also reviewed. Currently, E. benthamii plantations in SE Texas are producing trees with a density ranging from about 460 to 523 kg/m suggesting sum degree of genetic variability within the bulk seeds currently being employed. Good pulping yields of around 48% on OD wood have been obtained in lab studies. For comparison, this yield is about 3 points higher than for traditional mixed southern hardwoods. In general, the physical properties of pure E. benthamii are inferior to those of mixed southern hardwoods. When employed as a blend, the differences in physical properties are substantially mitigated.
机译：MWV林业一直在积极追求德克萨斯州东南部的寒冷/冻胀桉树种植园，并在巴西南部的冰霜普遍派生地区持续了几年。目前，正在研究的主要物种是E. Benthamii。讨论了从现场试验中建立的耐寒性的横穿努力，并在该计划中建立了耐寒性。审查了德克萨斯州东南部的能力返回巴西南部和其他地点的合作者的能力。还审查了腐蚀性物种的纸浆和造纸性能。目前，E.Se德克萨斯州果冻种植园生产的树木，密度范围为约460至523kg / m，表明当前正在使用的散装种子内的遗传变异程度。在实验室研究中获得了OD木材的良好制浆产量约为48％。相比之下，该产量比传统的混合南部硬木高约3点。通常，纯E. Benthamii的物理性质不如混合南部硬木的物理性质。当用作混合物时，物理性质的差异基本上减轻。

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