【摘要】 <正> 湿地松(Pinus elliottii)是阳性乔木,茶树(Camellia sinensis)是阴性灌木。这两种树种间作,形成针阔、乔灌两层树冠结构的茶园复合生态系统,可以改善茶树生态条件,提高茶叶的产量和品质。但间作存在胁地现象。一般认为这是上层树木的过度遮荫和根系间的竞争造成的。为了解这两种树种根系的分布状况和相互关系,并为间作茶园的合理配置和加强这种茶园的耕作管理提供依据,我们进行了湿地松与茶树间作根系分布状况的研究。更多还原

【Abstract】 In a tea plantation with interplanted slash pine, the lateral roots of pine trees were mostly distributed in the upper layer of soil (C—40cm), while most roots of tea in the depth of 0—60cm, Such a vertical distribution of root systems enable these two species to fully use the soil resources, On the other hand, the horizontal distribution of 14-year-old pine roots exten ded to more than 3.75m with a concentrated scope of 1.5m, which could be limited by fer tilizing and deep ploughing in the plantation.更多还原