Effect of substrate grain size on the growth and morphology of the submersed macrophyte Vallisneria natans L.
文献类型：期刊论文
| 作者 | Li, Z. Q.1; Kong, L. Y.1; Yang, L. F.1; Zhang, M.3; Cao, T.3; Xu, J.3; Wang, Z. X.1; Lei, Y.2 |
| 刊名 | LIMNOLOGICA
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 42期号:1页码:81-85 |
| ISSN号 | 0075-9511 |
| 关键词 | Growth substrate Grain size Physical properties Submersed macrophyte Succession |
| 通讯作者 | Wang, ZX (reprint author), Hubei Univ, Coll Resources & Environm, Wuhan 430062, Peoples R China |
| 中文摘要 | Experiments were conducted to investigate the growth and morphology of the submersed macrophyte Vallisneria natans in relation to seven substrate types. The study also aims to evaluate the influence of the grain size of the aquatic substrate on the submersed macrophyte. The results show that growth, morphology and biomass accumulation of V. natans were significantly affected by the physical properties of the growth substrate. Compared with V. natans grown in pebble and gravel substrates, V. natans grown in silt and clay substrates had greater height, more ramets and leaves, as well as greater biomass accumulation. No significant differences in biomass allocation patterns were found among the different experimental treatments. The total porosity and dry bulk density of the growth substrate strongly influence plant traits. Substantial positive correlations were observed between total porosity and height and total biomass. Also, negative correlations were observed between dry bulk density and height, number of ramets, total biomass and lacunal volume. These results indicate that at high concentrations of water-column nutrients, V. natans responds to different physical properties of the growth substrate by changing growth and biomass accumulation strategies, rather than by changing biomass allocation patterns. Compared with V. natans grown in substrates with larger grain sizes, V. natans appeared well-adapted to substrates with smaller grain sizes. Thus, the physical properties of the growth substrate could be important in determining submersed macrophyte colonization and distribution in shallow eutrophic lakes. This information may be useful in managing shallow eutrophic lakes wherein rooted submersed macrophytes are declining. (C) 2011 Elsevier GmbH. All rights reserved. |
| 英文摘要 | Experiments were conducted to investigate the growth and morphology of the submersed macrophyte Vallisneria natans in relation to seven substrate types. The study also aims to evaluate the influence of the grain size of the aquatic substrate on the submersed macrophyte. The results show that growth, morphology and biomass accumulation of V. natans were significantly affected by the physical properties of the growth substrate. Compared with V. natans grown in pebble and gravel substrates, V. natans grown in silt and clay substrates had greater height, more ramets and leaves, as well as greater biomass accumulation. No significant differences in biomass allocation patterns were found among the different experimental treatments. The total porosity and dry bulk density of the growth substrate strongly influence plant traits. Substantial positive correlations were observed between total porosity and height and total biomass. Also, negative correlations were observed between dry bulk density and height, number of ramets, total biomass and lacunal volume. These results indicate that at high concentrations of water-column nutrients, V. natans responds to different physical properties of the growth substrate by changing growth and biomass accumulation strategies, rather than by changing biomass allocation patterns. Compared with V. natans grown in substrates with larger grain sizes, V. natans appeared well-adapted to substrates with smaller grain sizes. Thus, the physical properties of the growth substrate could be important in determining submersed macrophyte colonization and distribution in shallow eutrophic lakes. This information may be useful in managing shallow eutrophic lakes wherein rooted submersed macrophytes are declining. (C) 2011 Elsevier GmbH. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Limnology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | LITTORELLA-UNIFLORA ; AQUATIC VEGETATION ; ORGANIC-MATTER ; SEDIMENT ; SOIL ; QUALITY ; BIOMASS ; PLANT |
| 资助信息 | National Natural Science Foundation of China[30870260, 30770396, 40971028]; Excellent Youth Foundation of Hubei Scientific Committee |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298779100010 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/16725]  |
| 专题 | 水生生物研究所_淡水生态学研究中心_期刊论文 |
| 作者单位 | 1.Hubei Univ, Coll Resources & Environm, Wuhan 430062, Peoples R China 2.Huazhong Normal Univ, Coll Life Sci, Wuhan, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Expt Stn Lake Ecosyst, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Z. Q.,Kong, L. Y.,Yang, L. F.,et al. Effect of substrate grain size on the growth and morphology of the submersed macrophyte Vallisneria natans L.[J]. LIMNOLOGICA,2012,42(1):81-85. |
| APA | Li, Z. Q..,Kong, L. Y..,Yang, L. F..,Zhang, M..,Cao, T..,...&Lei, Y..(2012).Effect of substrate grain size on the growth and morphology of the submersed macrophyte Vallisneria natans L..LIMNOLOGICA,42(1),81-85. |
| MLA | Li, Z. Q.,et al."Effect of substrate grain size on the growth and morphology of the submersed macrophyte Vallisneria natans L.".LIMNOLOGICA 42.1(2012):81-85. |
入库方式： OAI收割
来源：水生生物研究所
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