期刊论文

中文

中南林业科技大学学报

1673-923X

2015

35

6

63-69

10.14067/j.cnki.1673-923x.2015.06.012

湖南省研究生科研创新项目（Cx20138354） 中南林业科技大学研究生科技创新基金项目（CX2013822）：国家林业公益性行业科研专项（201404316）

本校为第一机构

以湖南省会同县炼山造林后4个不同年龄杉木人工林为对象,采用空间代替时间的方法,研究了炼山造林后杉木人工林林下植被多样性变化规律。结果表明:4个不同年龄杉木人工林林下植被多样性丰富,总物种数达到167种,分属于65科,127属;4个年龄阶段林下植被物种总数分别为74、85、76、68,草本的总数量在3 a时就达到最大值,平均高到7 a时,达到最大值;灌木的株数密度在7 a达到最大,随后开始降低,平均高则随林分年龄的增加而增大;林分中藤本的数量基本不变。随着林分年龄的增加,林下植被的物种相似性指数相对降低;菝葜Smilax china、狗脊蕨Woodwardia japonica、广东蛇葡萄Ampelopsis cantoniensis的重要值...

By taking four different forest-ages Chinesefir plantations(three-year-old, seven-year-old, seventeen-year-old, twentyfive-year-old) after controlled burning afforestation in Huitong county, Hunan province, as the studied objects, and by replacing time with space, the changing laws of understory plant diversity of Chinese fir plantations with different ages under controlled burning were in vestigated. The results show as follows. (1) Four different aged Chinesefir plantations all had rich plant diversity, the total species number of the four plantations was 167, and they belonged to 65 familie...