期刊论文

中文

西北林学院学报

1001-7461

2014

29

3

57-61

10.3969/j.issn.1001-7461.2014.03.11

“十二五”国家科技支撑计划专题（2012BAD22B0505） 湖南省教育厅项目（12C0440）

本校为第一机构

选择3种不同龄组的杉木人工林,研究林下植物物种的组成及多样性的变化.结果表明,不同龄组杉木人工林在1 800m2样地内林下植被的物种数在28～36之间,物种数差异不大,但其主要物种的生态习性差异明显.其中幼龄林30种,中龄林36种,成熟林28种.草本层的物种多样性指数D在0.705 8～0.829 0之间、H在1.709 1～2.515 7之间,中龄林＞幼龄林＞成熟林.灌木层的物种多样性指数D在0.880 3～0.923 6之间、H在2.338 9～2.695 0之间,中龄林＞成熟林＞幼龄林,整体上灌木层高于草本层.

Taking Chinese fir plantations of 3different age groups（young,middle-aged,and mature plantations）in Fushou Forest Farm as the study object,this paper analyzed and compared the composition of plant species and the changes of species diversity of undergrowth vegetations.The results showed that among three groups,there were about 28-36plant species per 1 800m2 sampling plots,the number of species among different groups was not significant.However the ecological habits of the dominant species were significantly different among different age group...