广西油茶良种林下套种玉竹技术试验研究  

Experimental Study on Understory Intercropping Technology of High-Quality Camellia oleifera Varieties With Polygonatum sibiricum in Guangxi

作　　者：廖蒙岳 Liao Mengyue(Forestry Bureau of Longsheng Autonomous County,Longsheng 541709,Guangxi,China)

机构地区：[1]桂林市龙胜各族自治县林业局,广西龙胜541709

出　　处：《绿色科技》2025年第5期67-70,共4页Journal of Green Science and Technology

摘　　要：为提高林地综合效益,探索广西油茶良种种植技术体系,研究油茶林下套种玉竹的可行性及其相互影响。通过实地调查和试验研究,系统总结油茶良种的造林地选择、整地、良种选择与定植技术要点;采用随机区组设计,设置4个不同株行距处理(20 cm×30 cm、25 cm×40 cm、30 cm×40 cm、40 cm×50 cm),研究玉竹最佳种植密度;通过对比试验,分析套种玉竹对油茶生长和产量的影响。结果表明:从造林地选择、整地、良种选择、定植等方面系统总结了广西地区油茶良种种植技术;随机区组试验表明,玉竹种植密度以30 cm×40 cm最佳;对比试验表明,套种区与未套种区油茶的地径、树高无显著差异,但套种区油茶单株产量显著高于未套种区。科学的油茶种植技术体系和合理的林下套种模式可显著提高林地综合效益。油茶-玉竹林下复合经营模式具有良好的生态互补性,是一种值得推广的林下经济发展模式。In order to improve the comprehensive benefits of forest land,this study investigates the planting technology system of high-quality Camellia oleifera varieties in Guangxi,and examines the feasibility and mutual influence of intercropping Polygonatum sibiricum under Camellia oleifera forests.Through field investigation and experimental research,the key points of afforestation site selection,land preparation,seed selection,and planting techniques for Camellia oleifera varieties are systematically summarized;using a random block design,four different plant spacing treatments(20 cm×30 cm,25 cm×40 cm,30 cm×40 cm,40 cm×50 cm)were set up to study the optimal planting density of Polygonatum sibiricum;the effect of intercropping with Polygonatum sibiricum on the growth and yield of Camellia oleifera through comparative experiments was analyzed.The planting techniques of high-quality Camellia oleifera varieties in Guangxi region were systematically summarized from the aspects of afforestation site selection,land preparation,variety selection,and planting;random block experiments showed that the optimal planting density for Polygonatum sibiricum was 30 cm×40 cm;comparative experiments showed that there was no significant difference in ground diameter and tree height between the intercropping and non-intercropping areas of Camellia oleifera,but the yield per plant in the intercropping area was significantly higher than that in the non-intercropping area.A scientific Camellia oleifera planting technology system and a reasonable understory intercropping model can significantly improve the comprehensive benefits of forest land.The compound management model of Camellia oleifera and Polygonatum sibiricum has good ecological complementarity,which is a worthwhile model for promoting the development of agroforestry.

关 键 词：林下经济 油茶良种 种植技术 广西 

分 类 号：S795[农业科学—林木遗传育种]