Effect of Thinning Intensity on the Growth of Cunninghamia lanceolata(Lamb.)Hook forests
In order to explore the impact of different thinning intensities on the growth of Cunninghamia lanceola-ta(Lamb.)Hook forests,this paper takes the northern Guangxi region as the research site,and takes the tree height,diameter at breast height,volume,and biomass of Cunninghamia lanceolata(Lamb.)Hook trees as the research objects,to investigate the growth of Cunninghamia lanceolata(Lamb.)Hook forests under different thinning intensities.The results showed that three thinning intensities,20％,30％,and 40％,all had a signifi-cant impact on the growth of height,diameter at breast height,volume,and biomass of Cunninghamia lanceolata(Lamb.)Hook trees.Under 30％thinning intensity,the growth of height,diameter at breast height,volume,and biomass of Cunninghamia lanceolata(Lamb.)Hook trees was most significant,with tree height,diameter at breast height,and volume increasing by 6.50％,11.84％,and 23.34％respectively compared to before tending.The biomass of roots,leaves,branches,and whole plants increased by 19.53％,17.82％,16.54％,and 27.69％respectively compared to before tending.Conclusion:Choosing a 30％thinning intensity is beneficial for the growth of Cunninghamia lanceolata(Lamb.)Hook forests during the thinning and nurturing process.This study provides a theoretical basis for scientific thinning and nurturing of Cunninghamia lanceolata(Lamb.)Hook forests.
万方数据
维普
