期刊论文

Effect of Different Stand Density on Biomass and Productivity of Eucalyptus Urophglla × grandis

中文

湖南生态科学学报

2095-7300

2007

13

4

11-14

10.3969/j.issn.1671-6361.2007.04.004

国家“十五”科技攻关项目（编号：2002BA515B020）.

本校为第一机构

对湘南低山丘岗区密度为600、900和1 200株·hm-2的6年生尾巨桉丰产示范林进行了生物量及生产力的测定分析.结果表明:单株生物量随密度的增加而明显减小,低密度林分是高密度林分的4.36倍;林分生物量随密度的增加而减小,低密度林分比高密度林分高出48.26 t·hm-2.年均净生物量分别达到14.86,11.42,6.82 t·hm-2·a-1.林分各组分的生物量随密度的增大而减小,并出现W干＞W根＞W枝的规律.林分结构以低密度林分合理,叶面积指数最高,干材生物量达60%以上.在湘南低山丘岗区发展潜力大,可作为短周期纸浆材林培育首选树种.表4,参14.

The biomass and productivity of 6 - years Eucalyptus urophglla x grandis high yield exemplary forest with the densities of 600,900, and 1200 trees · hm^-2 were investigated in the low hilly area of South Hunan. The results showed that the biomass of single tree was decreased distinctly with the increase of the density and tree biomass of the stand with low density was 4.36 times as those with high densities. The biomass of the stand declined with the increase of the density and the stands with low densities were 48.26 t · hm^-2 higher than th...