栗茶间作模式下茶树根系的基础特性

对安徽枞阳县周潭镇大山村中国森林生态网络大山试验示范区的栗茶间作茶园和单作茶园茶树根系的特征进行了试验研究。结果表明:栗茶间作促进了茶树根系的生长。间作茶园茶树根系的干重、吸收根比例、比根长和根系生理活性明显大于单作茶树根系;间作茶园茶树根系在土壤中的分布比单作茶树根系更深、更均匀;间作茶园内茶树和栗树根系在土壤空间中各自具有相对不同的生态位。栗茶间作具有较好的生态学基础,是一种可持续发展的茶园经营模式。

Basis Characteristics of Tea Root System under the Condition of Chestnut and Tea Intercropping

Comparative study of characteristics of tea roots system under the conditions of chestnut and tea intercropping and tea monoculture was carried out at Dashan Research and Demonstration Base of Forest Ecology Network Establishment of China in Zongyang,Anhui.The results showed that the intercropping of chestnut and tea stimulated the roots growth of tea.Dry weight of root system,proportion of feeder roots,specific root length and root activities of tea under the condition of intercropping were higher remarkably than those under the condition of monoculture;distribution of tea root system under the condition of intercropping was deeper and evener;and the roots of tea and chestnut were at different niches under the condition of intercropping.Therefore chestnut and tea intercropping with good ecological basis is a sustainable development management mode for tea garden.