IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Response of anatomical structures in tree roots to an erosion event on the southeastern Tibetan Plateau
Sun, Liping; Wang, Xiaodan; Hong, Jiangtao
Corresponding AuthorXiaodan Wang
2014
Source PublicationGEOMORPHOLOGY
ISSN0169-555X
EISSN1872-695X
Volume204Pages:617-624
SubtypeArticle
AbstractExposed 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.
KeywordSoil Erosion Tree-root Anatomical Structure Eucalyptus Camaldulensis
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.geomorph.2013.09.007
WOS Subject ExtendedPhysical Geography ; Geology
Indexed BySCI
WOS KeywordSOIL-EROSION ; HIGH-RESOLUTION ; LUMEN DIAMETER ; EXPOSED ROOTS ; RING ANALYSIS ; VESSEL SIZE ; RATES ; UK ; COLORADO ; IMPACTS
Language英语
Quartile2区
TOP
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000328234200049
Funding OrganizationChinese Academy of Sciences(KZCX2-XB3-08 ; XDB03030505)
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6692
Collection山地表生过程与生态调控重点实验室
AffiliationChinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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.
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