【摘要】 2005~2007年,从美国引进红桤木在江苏六合和安徽南陵进行引种造林试验,结果表明红桤木具有较好的生长适应性,是一个优良的速生树种。造林3 a时,平均树高生长量分别达到3.98 m和5.01 m,地径生长量达到5.9cm和7.14 cm。实生红桤木个体间早期生长差异较大,地径与苗高生长显著相关。引种红桤木4年生时已大量开花结实,进入性成熟期。更多还原

【Abstract】 During the period from 2005 to 2007,the cultivation experiment of introduced Alnus rubra was conducted both in Liuhe in Jiangsu,and Nanlin in Anhui,respectively.The results indicated that Alnus rubra was a fast-growth tree species.Annual height growth was 3.98 m in Liuhe and 5.01 m in Nanlin,respectively,and annual basal diameter growth was 5.9 cm in Liuhe and 7.14 cm in Nanlin,respectively.The growth of height related with basal diameter significantly.Flowering and fruiting occurred after the fourth year growth.更多还原