摘要
根据全省杨树主栽品种混系造林的生产实际以及南方型杨树品种(品系)间高生长过程的相似性,利用31块标准地优势木树干解析资料,把方程lgH=0.730+0.6011lgA作为导向曲线数学模型,编制了湖北省南方型杨树立地指数表。该表对于指导杨树的分类经营、定向培育,以及配套经营技术的研究与开发具有重要意义,同时,对于树高生长过程与南方型杨树相似的其它杨树品种(品系)也可参考使用。
According to production practice of afforesting with mixed lines of mainly—cultivated poplar varieties in whole province and the similarity in height growth process among different southern types of poplar variety (strain) in Hubei province, the site index table for it was compiled in this paper by use of data for stem analysis on dominant trees in 31 standard plots and regarding the equation lgH=0. 730+0. 6011 lgA as a mathematical model of curve. It is important for it to guide classified management, direction of breeding and guiding research and development on counterpart management technologies. And meanwhile, it can also be used referentially for other poplar breeds (strains) similar to southern type of poplar in process of tree height growth.
出处
《湖北林业科技》
2004年第C00期57-60,共4页
Hubei Forestry Science and Technology
基金
湖北省林业局重点资助项目
