柳窿桉9号引种栽培适应性研究  

Adaptability Research on Introduction and Cultivation of Eucalyptus saligna×Exserta № 9

作　　者：李宝福[1] 杨宗武[1] 黄信金 魏招云 林永胜[1] 

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]霞浦杨梅岭国有林场,福建霞浦355100

出　　处：《福建林业科技》2010年第2期19-23,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省林木种苗科技攻关项目"桉树良种选育与扩繁应用"(闽林科2003-10);福建省林业厅科技项目"柳窿桉良法配套技术研究"(闽林综[2003]126号)经费资助

摘　　要：在福建霞浦、仙游、永泰、南平延平区、邵武市、永安市和上杭县开展柳窿桉9号引种适应性试验研究,结果表明:柳窿桉9号适应性和速生性较强,在一般立地条件下造林(Ⅲ类地)成活率可达95%以上,中龄林保存率达85%左右。其速生性虽略比尾巨桉DH32-29差,但1年生平均树高可达2.0 m以上,2年生树高、胸径分别可达5.0 m、5.0 cm以上,尤其在低海拔山地不受冻或轻微受冻的情况下,其速生性较为明显;柳窿桉9号树干通直、径粗,抗风、抗旱和抗病虫害能力均较强。但柳窿桉9号对低温极为敏感,耐寒性有限,只可耐-2.0^-2.5℃的低温,在闽西北地区受冻几率大,在闽东南地区海拔300 m以下的山地种植受冻较轻,可以恢复正常生长。该无性系在福建中亚热带极端低温不低于-3℃的区域低海拔山地有种植前景,尤其适合闽东南沿海海拔300 m以下的山地栽培。The adaptability test on introduction of Eucalyptus saligna×Exserta № 9 in Xiapu,Xianyou,Yongtai,Yanping,Nanping,Shaowu,Yongan and Shanghang of Fujian was conducted and the results showed that adaptability and fast-growth of E.saligna×E.exserta №9 were stronger,under the general condition of site in Ⅲ fertility woodland,the survival rate could reached more than 95%,the conservation rate of mid-age forest could reach about 85%.The fast growth was not good as E.urophylla×E.grandis DH32-29,but its average tree height reached above 2.0 m in the 1st growth year,average tree height and DBH reached 5.0 m and above 5.0 cm after two years,especially under mountanious region at low altitude and of cold exposure invulnerable,its fast growth was evident,the bole was straighter,DBH was bigger,the ability of wind resistance、cold-resistance and disease and pests-resistance were much stronger.However,E.saligna×E.exserta №9 was sensitive to low temperature,cold-resistance was limit, its capability of anti-cold was about-2.0～-2.5℃,with the altitude heightening,anti-cold was more grave,and that growing at the altitude of less than 300 m,its anti-cold was lighter,and might restore growing generally.To sum up,it had a development foreground in central subtropical region of Fujian where the extreme low temperature was not under-3℃,and it was especially suitable to grow on the mountains of coast of southeast Fujian at the altitude of lower than 300 m.

关 键 词：柳窿桉 适应性 抗逆性 生长量 

分 类 号：S792.39[农业科学—林木遗传育种]