【摘要】 确定梭梭的年龄一直是一个悬而未决的问题。选取已知年龄的梭梭标准木进行解析测量、分析，然后用多元回归统计的方法探讨生长轮与梭梭生长状况的关系。梭梭的生长轮形态、数量虽不确定，但其生长轮数的年平均值却较为确定，平均为５．３±０．６．梭梭的总生长轮数（ｙ）与梭梭的地径（Ｒ）、高度（Ｈ）间关系密切，可以用ｙ＝７．９６＋５．８３Ｈ＋２．１３Ｒ表示，梭梭的年龄（ｎ）用下式计算更多还原

【Abstract】 The age determination of cakcayr remains an outstanding problem.The paper se-lests age known trees as references for dissection and measurement. The data are collected foranalysis。Multirariate regression models are employed to study the relation ship betweennumber of growth rings and the size of selected tree. The number and shape of nowth ring ofcakcayr are not definite in eacb year。 It is found the annual average number of rings is essen-tially a constant,it is 5.3±0.6.The total number of growth rings(y)has a close relationwith surface diameter(R),tree hight(H).It is expressed by y=7.96 + 5. 83H+ 2.13R。Sofar we can get the age on cakcayr tree更多还原