<正>在印度尼西亚苏门答腊地区P.T.Pulau Sambu公司所属的种植园内对椰子-菠萝复合系统的地上、地下部分结构特征及生物生产力进行了系统研究。结果表明:在复合系统中,5年生椰子的叶片主要分布在离地面2～9m的范围内,而菠萝叶片主要分布在离地面0～80cm范围内;椰子的根系呈“喇叭型”分布,在表层土壤的分布范围小,深层土壤分布范围广,而菠萝根系主要分布在0～30cm的表土中。复合系统的地上、地下部分结构存在明显的层次性,从而提高系统的光能利用率和养分利用率。复合系统的生物生产力是椰子单一种植园的4.3倍。椰子-菠萝复合经营是一种结构合理、生产力较高的热带经济作物优化栽培模式。

The characteristics of crown structure, root systems and biomass productivity of a coconut-pineapple interplantation are investigated. The results obtained show that the leaves of coconuts distributed mainly in the 2 -9m from aboveground, but pineapple’s leaves distributed mainly in from 0 to 80 cm; The roots of coconuts concentrated in deeper soils, but the roots of pineapples mainly concentrated in 0-30 cm surface soils. The vertical distribution of leaves and roots in the coconut-pineapple interplantation are appropriate for full utilization of light energy and soil nutrients. Biomass productivity of the interplantation is 4. 3 times that of pure coconut stands. Thus, coconut interplanted with pineapple is one of the optimum cultural patterns in tropical areas.