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为提高杨树速生丰产林的经营效果,对喀左小钻杨生长规律进行了研究。结果表明,喀左小钻杨树高连年生长量最大值出现在第7年,平均生长量最大值出现在7～11a;胸径连年生长量最大值出现在第6年,平均生长量最大值出现在6～11a;材积连年生长量最大值出现在第8年。把工艺成熟和数量成熟结合起来加以考虑,喀左小钻杨的轮伐期为13～15a。经分析,喀左小钻杨生长过程分3期,1～5a为幼林期,6～11a为速生期;12～15a为近成熟期,应主伐利用。
In order to improve the management effect of poplar fast-growing and high-yielding forests, the law of growth of Populus simonii Poplar was studied. The results showed that the highest annual growth rate of Poplar in Kazuozuo appeared in the 7th year and the maximum appeared in the range of 7 ~ 11a. The maximum annual growth rate of DBH appeared in the 6th year, and the maximum average growth appeared in 6 ~ 11a; the maximum volume of annual growth occurred in the first 8 years. To mature technology and the number of mature to be considered together, Kazak small drilling Yang rotation period of 13 ~ 15a. According to the analysis, the growth process of Populus euphratica in Kazuo was divided into three stages, 1 ~ 5a for young forest stage, 6 ~ 11a for fast-growing stage; 12 ~ 15a for near mature stage, should be used for primary cutting.