Response of anatomical structures in tree roots to an erosion event on the southeastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Sun, Liping; Wang, Xiaodan ; Hong, Jiangtao
|
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2014 |
| 卷号 | 204页码:617-624 |
| 关键词 | Soil erosion Tree-root Anatomical structure Eucalyptus camaldulensis |
| ISSN号 | 0169-555X |
| 通讯作者 | Xiaodan Wang |
| 英文摘要 | Exposed roots have been used in dendrogeomorphology to determine erosion rates. However, few studies have focused on the changes in ring width and in the anatomical properties of hardwood roots exposed by soil erosion at a macroscopic and microscopic level. In this study, we identified the ring width and the anatomical response of hardwood root to a denudation event and applied these anatomical findings to the reconstruction and quantification of soil erosion rates. A total of 136 cross sections (54 from buried roots and 79 from exposed roots of 25 trees) were sampled in the study area. Measurements of the widths of the growth rings, the average vessel area in earlywood, the average vessel area per ring, and the vessel number per ring were performed with WinDENDRO and ImageJ. Our results show that the analysis of vessel features is a useful tool to identify soil erosion events recorded during the life of a tree. A sharp decrease of nearly 50% in the vessel area of earlywood was an important signature indicating the exposure of tree roots caused by denudation. Soil erosion rates derived from exposed roots varied between 1.04 and 3.61 mm y(-1) in the southeastern Tibetan Plateau. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geography, Physical ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Physical Geography ; Geology |
| 关键词[WOS] | SOIL-EROSION ; HIGH-RESOLUTION ; LUMEN DIAMETER ; EXPOSED ROOTS ; RING ANALYSIS ; VESSEL SIZE ; RATES ; UK ; COLORADO ; IMPACTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000328234200049 |
| 公开日期 | 2013-12-23 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6692]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Liping,Wang, Xiaodan,Hong, Jiangtao. Response of anatomical structures in tree roots to an erosion event on the southeastern Tibetan Plateau[J]. GEOMORPHOLOGY,2014,204:617-624. |
| APA | Sun, Liping,Wang, Xiaodan,&Hong, Jiangtao.(2014).Response of anatomical structures in tree roots to an erosion event on the southeastern Tibetan Plateau.GEOMORPHOLOGY,204,617-624. |
| MLA | Sun, Liping,et al."Response of anatomical structures in tree roots to an erosion event on the southeastern Tibetan Plateau".GEOMORPHOLOGY 204(2014):617-624. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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