总结了松荷异龄混交的试验结果和造林技术，分析和揭示了珠江流域南热带季风气候区（18a）马尾松（Pinus mnssoniana）×（14a）荷木（Schimasuperba）异龄混交林和（32a）湿地松（Pelliottii）×（14a）荷木异龄混交林的林分结构、生物量、凋落物、土壤理化性质、林地涵养水源和林分生长量等的变化规律及其影响作用，全面评价松荷异龄混交造林的成效。松荷异龄混交林明显地改善土壤理化性质，增加土壤养分，提高水源涵养功能．增谒棘分稳定性能，促进主要树种的生长，为低效防护林改造提供了有效徐径。%The experiment result and afforestation techniques of Pine × Schima superba were summa- rized. The change pattern of stand structure, biomass, litter falls, soil physicochemical properties, forestland water conservation and stand growth volume and effects of Pinus rnassoniana (18-year-old) × Schirna superba (14-year-old) as well as Slash Pine (32-year-old) × Schima superba (14-year- old) were analyzed and discovered. Effects of mixed forestation of Pine × Schima superba at different ages were comprehensively evaluated. Mixed forestation of Pine × Schirna superba at different ages apparently improved soil physical properties, increased soil nutrition, enhanced water-conservation a- bility and stand stability, promoted the growth of main trees and provided effective channels for im- provement of low-effective protection forest.
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