期刊论文

中文

中南林业科技大学学报

1673-923X

2004

24

2

1-5

10.3969/j.issn.1673-923X.2004.02.001

国家科技部重点野外科学观测试验站项目"亚热带人工林生态系统定位研究"（编号:[2000]国科基便字076）； 国家林业局重点项目"湖南会同杉木人工林生态系统定位研究"（2001—07）.；

本校为第一机构

对杉木人工林生态系统的碳素含量进行了定位观测.结果表明:不同林龄杉木枝、叶中碳素含量的季节变化规律均表现为冬季＞秋季＞夏季＞春季:杉木叶的平均碳素含量为50.44%,枝的平均碳素含量为44.79%;不同层次杉木叶碳素含量的平均值依序为上层叶＞中层叶＞下层叶,不同层次杉木枝碳素含量的平均值依次为中层枝＞上层枝＞下层枝;10年生杉木各组分碳素含量的变化范围为45.29%～49.72%,11年生的为45.80%～50.22%,14年生的为45.80%～50.93%,变异系数范围为1.68%～8.44%;不同组分的碳素含量按大小可大致排列为树叶＞树皮＞树根＞树干＞树枝＞球果;同一林分中各层次植物的碳素含量按高低排列为乔木层＞灌...

Based on the data observed at Huitong Ecology Station, the carbon content of Chinese fir plantation ecosystem was studied. The results show as follows. The season variation law of carbon content in branches and leaves of different age is in the order: winter>autumn>summer>spring. The average value of carbon content in leaves is 50.44%, and that in branches is (44.79%).The order of the average value of carbon content in leaves of different layers is: the upper strata>the middle strata>the lower strata, and that in branches of different layers is: the middle strata>the upper strata>the lower str...