湖南省邓恩桉与柳桉高产纤维材引种培育研究进展(英文)  

Eucalyptus dunnii and E.saligna for high productivity fibre introduction and plantations development in Hunan Province

作　　者：李柏海 Roger Arnold 

机构地区：[1]湖南省林业科技推广总站,湖南长沙410007

出　　处：《湖南林业科技》2011年第3期5-15,共11页Hunan Forestry Science & Technology

摘　　要：中国大多数桉树资源主要集中在较为温暖的沿海地区。目前在湖南和江西等华南和中南省份较为冷凉的内陆地区,通过选择一些合适的耐寒桉树品种,种植了一些规模不大的桉树人工示范林,这些示范林显示出了较好的适应性与丰产性。这些较为冷凉的内陆地区有着立地条件较为优越的适合人工林发展的广大林地。对于较冷地区,尤其是湖南省来说,通过分析所有的已建立的田间试验数据、气候资料,以及根据在这些地区桉树人工林培育的历史经验,我们认为邓恩桉与通过选择的部分合适地理种源的柳桉是这类地区最具希望的桉树发展品种。对于林木培育者与投资者来说,评价这些品种的表现,不应该只是局限于木材材积的多少,更应该关注木材质量与纤维产量。研究表明相对在热带与亚热带等华南沿海地区栽培的很多的桉树品种来说,邓恩桉与柳桉的平均木材基本密度与得浆率更高。因此,对于纸浆厂来说,如果利用湖南的邓恩桉与柳桉人工林木材作为制浆原料,将获得更大的利润空间。Most of China＇ s eucalypt plantation resource is concentrated in warmer southern coastal regions.Relatively small areas have been planted to date in cooler inland areas of southern and southern-central provinces such as Hunan and Jiangxi-areas where selected cold tolerant eucalypts have proven to be both well adapted and very productive.These cooler inland areas have large areas of quality land potentially available for forest plantation development.For cooler plantation environments and particularly for key plantation environments in Hunan Province,climatic data,field trials and plantation experience have shown the most promising cold tolerant eucalypts to be Eucalyptus dunnii and selected sources of E.saligna.In evaluating the performance of these species,it is important that growers and investors look beyond volume and consider wood mass and fibre yield.Research has found that E.dunnii and E.saligna generally have significantly higher average wood basic density and higher pulp yield than many of the tropical and sub-tropical eucalypt varieties grown in warmer coastal regions of southern China.Thus,logs of E.dunnii and E.saligna from Hunan plantations can be far more profitable fibre sources for pulp mills.

关 键 词：邓恩桉 柳桉 高产纤维材 人工林 湖南 

分 类 号：S792.39[农业科学—林木遗传育种]