黄枝润楠与杉木混交林生长状况研究  

Study on the Growth Status of the Mixed Forest of Machilus versicolora and Cunninghamia Lanceolata

作　　者：张永平 Zhang Yongping(Nanjing County Forest Resource Planning and Protection Station,Zhangzhou 363600,Fujian,China)

机构地区：[1]福建省南靖县森林资源规划保护站,福建南靖363600

出　　处：《绿色科技》2024年第1期94-97,共4页Journal of Green Science and Technology

摘　　要：为调查黄枝润楠与杉木混交林的生长状况,通过采集和分析样地数据,评估了混交比例对树高、胸径、材积以及根部、叶部、枝部、干部和整株生物量的影响。结果表明:黄枝润楠与杉木混交林能够显著提高树木的生长性能,树高、胸径和材积在混交林中均显著高于单一林,主要是由于混交林中所产生的树种间互作效应,促进了树木的生长和发育,混交比例的增加导致了树高、胸径和材积的进一步增加;此外,混交林也对树木的生物量分配产生影响,混交林中,根部、叶部和枝部的生物量有所变化,由于树种之间的竞争和资源分配不均,根部和叶部生物量相对于单一林有所增加,而枝部生物量略有减少,然而,对于主干生物量的影响较小,与混交比例的变化关联不大。总体而言,黄枝润楠与杉木混交林具备较好的生长潜力和经济效益。混交林能够提高树木的生长速度和生长强度,进而促进树高、胸径和材积的增长。虽然整株生物量相对于单一林略有减少,但该减少对经济效益没有明显负面影响。因此,黄枝润楠与杉木混交林是一种具有潜力的经济林种植模式,值得进一步推广和应用。This study aims to investigate the growth status of the mixed forest of Machilus versicolora and Cunninghamia lanceolata.By collecting and analyzing sample plot data,the impact of mixed ratio on tree height,diameter at breast height,volume,and biomass of roots,leaves,branches,stems,and whole plants was evaluated.The research results indicate that the mixed forest of Machilus versicolora and Cunninghamia lanceolata can significantly improve the growth performance of trees.The tree height,diameter at breast height,and volume in the mixed forest are significantly higher than those in the single forest.This is mainly due to the interaction effect between tree species in the mixed forest,which promotes the growth and development of trees.The increase in the mixed proportion leads to a further increase in tree height,diameter at breast height,and volume;In addition,mixed forests also have an impact on the biomass allocation of trees.In mixed forests,the biomass of the roots,leaves,and branches varies.Due to competition among tree species and uneven resource allocation,the biomass of the roots and leaves increases compared to a single forest,while the biomass of the branches slightly decreases.However,the impact on the biomass of the main stem is relatively small,and there is little correlation with the change in mixed proportion.Overall,the mixed forest of Machilus versicolora and Cunninghamia lanceolata has good growth potential and economic benefits.Mixed forests can improve the growth speed and intensity of trees,thereby promoting the growth of tree height,diameter at breast height,and volume.Although the biomass of the entire plant has slightly decreased compared to a single forest,this reduction has no significant negative impact on economic benefits.Therefore,the mixed forest of Machilus versicolora and Cunninghamia lanceolata is a potential economic forest planting model that is worthy of further promotion and application.

关 键 词：混交比例 杉木 黄枝润楠 生长状况 生物量 

分 类 号：S723[农业科学—林木遗传育种]