美国红桤木苗期生长规律研究  

Studies on Growth Rule in Seedling Stage of Alnus rubra

作　　者：吕梅[1] 方炎明[1] 曹鹏[1] 

机构地区：[1]南京林业大学森林资源与环境学院,南京市龙蟠路159号210037

出　　处：《林业科技开发》2007年第2期29-32,共4页China Forestry Science and Technology

基　　金：国家林业局"948"项目"美国材用阔叶树良种选育及造林技术引进"(编号:2003-4-09)

摘　　要：美国红桤木在我国南京周边地区的引种栽培研究结果表明:光照、温度和水分等环境条件是影响红桤木幼苗死亡率的关键因素。红桤木1a生播种苗的苗高生长呈“S”形曲线,整个生长经历了一个慢-快-慢的过程。对比南京江宁和六合两试验基地1a生红桤木播种苗的苗高和地径表明,2个试验地的环境因素对地径的生长量影响不大,红桤木在南京地区具有生长快、适应性广等特点。The results of cultivated experiment of Aluns rubra Bong. In the Nanjing region showed that the environment, such as sunlight, temperature and moisture was the key factors in the livability of seedlings. The growth of height of one-year old seedlings showed the curve of ＂S＂ and the rhythm of＂ slow-fast-slow＂ during the year. No obviously differences of the stem diameter closing to the ground of seedlings between the Jiangning site and the Liuhe site had been observed. Alunus rubra B. has the characteristics of rapid growth ,extensive adaptability, and it could be a suitable tree species for popularizing and development.

关 键 词：红桤木 引种栽培 死亡率 高生长 地径 

分 类 号：S792.99[农业科学—林木遗传育种]