3种相思在肇庆造林生长对比  

Afforestation Comparison of Three Acacia Species in Zhaoqing City

作　　者：梁承坚 陈水莲 韩东苗 胡德活[2] 

机构地区：[1]肇庆市林业科学研究所,广东肇庆526020 [2]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520

出　　处：《林业与环境科学》2017年第4期57-60,共4页Forestry and Environmental Science

摘　　要：对厚荚相思(Acacia crassicarpa)、马占相思(A.mangium)、肯氏相思(A.cuninghamia)进行引种造林试验。结果表明,在粤西造林后1~4 a,厚荚相思树高生长最快,肯氏相思次之,马占相思最慢,分别为5.57、4.92、4.08 m;但马占相思造林后第4年至第5年生长明显加快,造林后5 a,马占相思树高、胸径生长最快、生物量最大,分别为7.01 m、7.69 cm、32.1 kg,厚荚相思次之,分别为6.80 m、5.77 cm、16.72 kg,肯氏相思最差,分别为5.32 m、4.21 cm、13.48 kg。马占相思和厚荚相思适宜在肇庆市及粤西南地区推广。The introduction and afforestation of Acacia crassicarpa, A. mangium and A. cuninghamia were carried out in this experiment. The results showed that, after 1~4 years afforestation in western Guangdong, the highest growth rate of A. crassicarpa was the highest, followed by A. cuninghamia and A. mangium, and the tree height of them was 5.57, 4.92, 4.08 m respectively. However, A. mangium grew the fast from the fourth to fifth year. After 5 years of afforestation, A. mangium presented the highest growth rate in both height（7.01 m） and DBH（7.69 cm）, as well as the largest biomass（32.1 kg）. A. crassicarpa ranked the second with 6.80 m in height, 5.77 cm in diameter and 16.72 kg in biomass. A. cuninghamia was the last, with 5.32 m in height, 4.21 cm in diameter and 13.48 kg in biomass. In summary, A. crassicarpa and A. mangium should be promoted in Zhaoqing city and western Guangdong.

关 键 词：厚荚相思 马占相思 肯氏相思 造林对比 

分 类 号：S792[农业科学—林木遗传育种]