Burial depth and diameter of the rhizome fragments affect the regenerative capacity of a clonal shrub
文献类型：期刊论文
| 作者 | Luo, Weicheng; Zhao, Wenzhi |
| 刊名 | ECOLOGICAL COMPLEXITY
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 23页码:34-40 |
| 关键词 | Clonal shrub Rhizome fragment Burial depth Biomass production Regeneration capacity |
| ISSN号 | 1476-945X |
| DOI | 10.1016/j.ecocom.2015.05.004 |
| 通讯作者 | Zhao, Wenzhi(zhaowzh@lzb.ac.cn) |
| 英文摘要 | Clonal plants in highly disturbed habitats are often broken into small fragments of various sizes and buried at various soil depths. As a storage organ, rhizome fragments play an important role in enabling plants to survive in such habitats. But few studies have been concerned about the regenerative capacity of rhizome fragments of clonal shrubs of different rhizome diameter and at different burial depths. Here, we investigated whether deeper burial decreased, and diameter of the rhizome fragment increased, the regenerative capacity of a clonal shrub. Research samples of rhizome fragment (rhizome diameters of 2, 5, 10, 15, and 20 mm) of the clonal shrub Calligonum arborescens were buried at different depths (0, 1, 5, 10, and 20 cm). Increasing the diameter of the rhizome fragments significantly increased the survival rate of fragments, and increased the above-ground, below-ground and total biomass production of fragments. Vegetative reproduction ability also increased with an increase in diameter of the rhizome fragments. With an increase in sand burial depth, above-ground, below-ground, total biomass production and vegetative reproduction ability first decreased and then increased, and no fragments survived at the 0 cm burial depth. These results indicate that sand burial depth and diameter of the rhizome fragments significantly affected the regeneration capacity of C. arborescens. Sand burial is one of the essential prerequisites for C. arborescens rhizome fragments' survival. Moderate burial depth (5 cm) and larger fragment diameter (20 mm diameter) were more suitable for biomass production and vegetative reproduction. These results indicate that reserves stored in rhizome fragments can contribute greatly to the regeneration capacity of the C. arborescens-responses that are very important for C. arborescens survival and establishment in frequently disturbed habitats. (C) 2015 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SAND BURIAL ; SEEDLING EMERGENCE ; TRIFOLIUM-REPENS ; PLANTING DEPTH ; DUNE SYSTEMS ; SURVIVAL ; GROWTH ; GERMINATION ; INTEGRATION ; SIZE |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000361582100005 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557023 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Wenzhi |
| 作者单位 | Chinese Acad Sci, Linze Inland River Basin Res Stn, Key Lab Inland River Basin Ecohydrol, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Weicheng,Zhao, Wenzhi. Burial depth and diameter of the rhizome fragments affect the regenerative capacity of a clonal shrub[J]. ECOLOGICAL COMPLEXITY,2015,23:34-40. |
| APA | Luo, Weicheng,&Zhao, Wenzhi.(2015).Burial depth and diameter of the rhizome fragments affect the regenerative capacity of a clonal shrub.ECOLOGICAL COMPLEXITY,23,34-40. |
| MLA | Luo, Weicheng,et al."Burial depth and diameter of the rhizome fragments affect the regenerative capacity of a clonal shrub".ECOLOGICAL COMPLEXITY 23(2015):34-40. |
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来源：寒区旱区环境与工程研究所
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