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对杉木套种山苍子模式及对照(未套种)的林分(5年生)地上部分结构和根系及生物量的研究结果表明,套种林分中的山苍子枝叶处于上层,0.90～1.25m处杉木和山苍子的枝叶相互交叉;山苍子根系向水平方向扩展,垂直方向和杉木根系分层分布,从而提高林地光能利用率和土壤养分利用率。套种模式林分中杉木单株生物量是对照的1.18倍,林分的生物量是对照的1.43倍。杉木套种山苍子是一种结构合理、生产力较高的南方山地杉木混农林业模式。
The results of the study on aboveground part structure and root system and biomass of stands of Litsea cubeba Litsea cubeba littoralis model and control (no intercropping) showed that the branch of Litsea cubeba in the intercropping stands was in the upper layer, 0.90-1.25m Cunninghamia lanceolata and Litsea cubeba branches intersect each other; Litsea cubeba roots to the horizontal direction, the vertical distribution and stratification of Chinese fir roots, thereby improving the utilization of light energy and forest soil nutrient utilization. In intercropping stand, the biomass per plant of Chinese fir was 1.18 times that of the control, and the biomass of stand was 1.43 times of the control. Litsea cubeba littoralis is a reasonable structure, high productivity of southern mountain pine agroforestry model.