CAJ | 학술논문

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。
이장북현삽조번식청양위연구대상，통과주해석목조사，대청양수고、흉경화재적생장과정진행연구。결과표명：청양수고생장0～9년위유령기，10～32년생장점완위근숙기，33～52년생장완만진입성숙기；청양흉경생장재0～6년시위유령기，7～32년위근숙기，33～52년위성、과숙기；청양재적생장0～11년위중유령기，12～32년위근숙기，32년이후속우성、과숙기。종이학정，32～33년위삽조청양적수량성숙기。
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 ( 0~9ages) ,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 DBH and volume consist of the young stage in 0~6ages and 0~11ages ,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 .