| 飞播马尾松林生物产量及生产力研究 |
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| 引用本文： | 姚东和,何友军.飞播马尾松林生物产量及生产力研究[J].湖南环境生物职业技术学院学报,2001,7(1):23-27. |
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| 作者姓名： | 姚东和 何友军 |
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| 作者单位： | 1. 中南林学院,湖南,株洲,412006
2. 湖南省林业厅,湖南,长沙,410007 |
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| 基金项目： | 湖南省林业厅“飞播马尾松林培育技术研究”项目的部分内容 |
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| 摘 要： | 湘乡市16年生不同密度的马尾松(Pinus massoniana)飞播林林分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2 42倍,高出18.33kg;当林分密度一定后,林分生物量同样随密度的增加而减小,低密度林分比高密度林分高出21.81t/hm2。林分各组生物量随密度增大而减小,并出现W>W根>W枝>W皮>W叶的规律。年均净生长量低密度林分是高密度林分的1.40倍。
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| 关 键 词： | 马尾松飞播林 生物量 生产力 林分密度 |
| 修稿时间： | 2000年12月6日 |
Study on the Biomass and Productivity of the Plane Seeding Pinus Massioniana Forests |
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| YAO Dong-he,HE You-jun.Study on the Biomass and Productivity of the Plane Seeding Pinus Massioniana Forests[J].JOurnal of Hunan Environment Biological Polytechnic,2001,7(1):23-27. |
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| Authors: | YAO Dong-he HE You-jun |
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| Abstract: | The results showed that in 16 - year- old different stand density Pinus massoniana forests, either the single - tree biomass or the stand biomass was obviously reduced with the increasing of the stand density , and the single - tree biomass of the low stand density had increased by 18.33kg and the stand biomass increased by 21.81t/hm2 morn than those of the high stand density. The biomass of the sterm, branch, leaf, bark, and root was reduced with the increasing of the stand density , and showed the regularity Ws > Wr > Wb > Wba > W1; . The net productivity of the low stand density was 1.40 times as much as that of the high stand density. |
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| Keywords: | plane seeding Pinus massoniana forests biomass productivity stand density |
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