华南农业大学学报2016，Vol.37Issue(4)：63-68,6.DOI:10.7671/j.issn.1001-411X.2016.04.011
造林密度对黄梁木幼林生长和林分蓄积的影响
Effects of planting density on the growth and stand volume of young Anthocephalus chinensis plantation
摘要
Abstract
[Objective] To explore the effects of planting density on the growth of Anthocephalus chinensis plantation, namely, on tree height, canopy width, height under branch, diameter at breast height (DBH), individual tree volume and stand volume. [Method]Planting densities of 625,667,833,1 667 and 2 500 trees·hm-2 were established in a complete randomized block design. Based on the method of tally, the major growth indicators of nine experimental trees in each block were measured. Differences among different planting densities were analyzed using one-way ANOVA and Duncan ’ s Multiple Range Test. Relationship among different traits and planting density were explored using correlation analysis.[Result]Planting density had significant effects on tree height, canopy width, height under branch, and stand volume (P<0. 01). Tree height(y) and planting density(x) were significantly positively correla-ted, and the regression equation was y = -4. 000 0 × 10 -7x2 + 0. 001 6x + 8. 270 3. Stand volume(y) and planting density( x) were significantly positively correlated, and the regression equation was y =-1. 000 0 ×10 -5x2 + 0. 112 7x-12. 664 0. Canopy width(y) and planting density(x) were signifi-cantly negatively correlated, and the regression equation was y =15. 942 5 -4. 000 0 × 10-5x . Canopy width (y) and DBH(x) were significantly positively correlated, and the regression equation was y =9. 661 3x2 -103. 950 0x + 293. 870 0. [Conclusion]For young A. chinensis plantation, the planting density of 2 500 trees·hm-2 leads to the optimum results with the highest stand volume and tree height.关键词
造林密度/黄梁木/幼林/生长效应/林分蓄积/速生Key words
planting density/Anthocephalus chinensis/young plantation/growth effect/stand volume/fast-growing分类
农业科技引用本文复制引用
张立超,高婕,林佳慧,陈晓阳,彭昌操,邓小梅,林家怡,曾曙才..造林密度对黄梁木幼林生长和林分蓄积的影响[J].华南农业大学学报,2016,37(4):63-68,6.基金项目
国家自然科学基金(31270675) （31270675）
国家林业局林业公益性行业科研专项(201004020) （201004020）
广东省科技计划项目(2012B020310004,2014A020216032) （2012B020310004,2014A020216032）
