青杨插条繁殖林分生长量及生长期研究  

Study of the stand growth and growing period of P.cathayanaby cutting breeding

作　　者：方月梅[1] 姜鹏[1] 商蕾[1] 陆贵巧[1] 谷建才[1] 

机构地区：[1]河北农业大学林学院,河北保定071000

出　　处：《河北林果研究》2013年第3期237-240,244,共5页Hebei Journal of Forestry and Orchard Research

摘　　要：以张北县插条繁殖青杨为研究对象,通过做解析木调查,对青杨树高、胸径和材积生长过程进行研究。结果表明:青杨树高生长0～9年为幼龄期,10～32年生长渐缓为近熟期,33～52年生长缓慢进入成熟期;青杨胸径生长在0～6年是为幼龄期,7～32年为近熟期,33～52年为成、过熟期;青杨材积生长0～11年为中幼龄期,12～32年为近熟期,32年以后属于成、过熟期。从而确定,32～33年为插条青杨的数量成熟期。The cutting propagation of P. cathayana in Zhangbei County is discussed as re- search object. The analytic wood investigation to probe into the growth process of its vol- ume, DBH, and tree height indicates that the height growth of P. cathayana enters into its young stage （0-gages）, followed by gradually slowing into its pre-ripe stage （10-32ages） and slowly growing into its maturity （33-52ages）, while the different growth stages of its DI3H and volume consist of the young stage in 0-6ages and 0-llages, the pre-ripe stage in 7-32ages and 12-32ages, and the maturity and over-ripe stage in 33-52ages and 32ages, re- spectively. Accordingly, the quantity maturity of cuttings of P. cathayana is in 32-33ages.

关 键 词：青杨 插条繁殖 解析木 生长期 

分 类 号：S758[农业科学—森林经理学]