对不同株龄家植北五味子根系及横走茎发育状况调查的结果表明 ,五年生以内的五味子根系分布范围为距根茎0 140cm,主要集中在0 50cm ;深度分布为距地表3 50cm ,主要集中于3 30cm。一些植株横走茎量较大 ,对树体构成较强的营养竞争 The results of investigation on the development of the root and the transverse stems of Schisandra sphenanthera in different age families showed that the root distribution range of Schisandra sp. Within five years was 0 140cm from the rhizome and mainly concentrated at 0 50cm; the depth distribution was mainly from 50cm to the surface 3 50cm At 3 30cm. Some plants cross the larger amount of stems, the tree constitutes a strong nutritional competition