IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Use of landslide-dammed lake deposits and pollen tracing techniques to investigate the erosional response of a small drainage basin in the Loess Plateau, China, to land use change during the late 16th century
Zhang, X.1; Walling, D. E.2; He, X.1; Long, Y.1
Corresponding AuthorZhang, X.
2009
Source PublicationCATENA
ISSN0341-8162
EISSN1872-6887
Volume79Issue:3Pages:205-213
SubtypeArticle; Proceedings Paper
AbstractA major landslide that occurred in 1569 in the Huangtuwa gully catchment within the Rolling Loess Plateau region of China, resulted in the creation of a landslide-dammed lake at the outlet of the small 0.1 km(2) tributary valley of the Houxiaotan Gully. All the sediment transported to the outlet of this catchment was deposited in the lake. After about 30 years the dam failed and the lake deposits were dissected as the stream cut down to its former base level. Substantial remnants of the sediment deposits that accumulated over the ca. 30 year period are, however, preserved as terraces near the outlet of the catchment and a vertical section through these sediment deposits was investigated using stratigraphic and pollen tracing techniques. Individual flood couplets could be clearly distinguished and these permitted the establishment of a chronology for the sediment deposits and the estimation of the sediment yields associated with individual events and individual years. Pollen analysis undertaken on samples collected from the individual flood couplets also provided information on the variation of the pollen content of the sediment and the proportion of Artemisia pollen during the period represented by the deposits. Interpretation of the information assembled from the sediment section has made it possible to reconstruct the erosional history of the Houxiaotan catchment during the 31 year period following the landslide. The average sediment yield of the catchment in the late 16th century was very similar to its present-day sediment yield. The sediment yield from the catchment and the relative contribution of the intergully areas, as compared to the gully system, declined immediately after the landslide as a result of abandonment of the cultivated land within the catchment. The restoration of cultivation in the catchment after about 17 years resulted in an increase in sediment yield from ca. 9000 t km(-2) yr(-1) to ca. 30,000 t km(-2) yr(-1) and a substantial increase in the proportion of sediment contributed by the cultivated inter-gully areas. Scope exists to apply a similar approach to the sediment deposits that accumulated in other former landslide-dammed lakes within the Rolling Loess Plateau region of China, in order to develop an improved understanding of the erosion history of the region. (C) 2009 Elsevier B.V. All rights reserved.
KeywordPollen Sediment Yield Reconstruction Landslide-dammed Lake Land Use Change Sediment Deposits
WOS HeadingsScience & Technology ; Physical Sciences ; Life Sciences & Biomedicine
DOI10.1016/j.catena.2009.05.001
WOS Subject ExtendedGeology ; Agriculture ; Water Resources
Indexed BySCI
WOS KeywordSOIL-EROSION ; RATES ; REGION
Language英语
Quartile4区
TOP
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000272019300005
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10561
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Affiliation1.CAS, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Exeter, Dept Geog, Exeter EX4 4RJ, Devon, England
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
Zhang, X.,Walling, D. E.,He, X.,et al. Use of landslide-dammed lake deposits and pollen tracing techniques to investigate the erosional response of a small drainage basin in the Loess Plateau, China, to land use change during the late 16th century[J]. CATENA,2009,79(3):205-213.
APA Zhang, X.,Walling, D. E.,He, X.,&Long, Y..(2009).Use of landslide-dammed lake deposits and pollen tracing techniques to investigate the erosional response of a small drainage basin in the Loess Plateau, China, to land use change during the late 16th century.CATENA,79(3),205-213.
MLA Zhang, X.,et al."Use of landslide-dammed lake deposits and pollen tracing techniques to investigate the erosional response of a small drainage basin in the Loess Plateau, China, to land use change during the late 16th century".CATENA 79.3(2009):205-213.
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