Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.catena.2016.09.014 |
Holocene aeolian activity in the Headwater Region of the Yellow River, Northeast Tibet Plateau, China: A first approach by using OSL-dating | |
Hu, Guangyin1; Yu, Lupeng2; Dong, Zhibao1![]() | |
通讯作者 | Hu, Guangyin ; Yu, Lupeng |
来源期刊 | CATENA
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ISSN | 0341-8162 |
EISSN | 1872-6887 |
出版年 | 2017 |
卷号 | 149页码:150-157 |
英文摘要 | The Headwater Region of the Yellow River (HRYR) is the catchment upstream of Duoshi Gorge, covering an area of 29,588 km(2). The HRYR is located in the northeastern Tibet Plateau with an altitude higher than 4000 m above sea level, and is especially sensitive to climate change. Since the late 19th century, the mean annual temperature in Tibet Plateau has increased sharply. As a result of increasing air temperature, a significant number of environmental problems have occurred during the past decades, including aeolian desertification. In recent decades, aeolian desertification has become a severe environmental problem in the Tibet Plateau due to permafrost degradation, because permafrost plays an important role in maintaining the grassland vegetation. With the increase in ground temperature, the aeolian activity in the HRYR is likely to become more serious. However, the history of aeolian activity in the HRYR remains unknown due to a lack of chronological studies. In this study, 15 Optical Stimulated Luminescence (OSL) ages from three typical sections were used to reveal the history of aeolian activities in the HRYR during the Holocene. All of the OSL ages were late Holocene, and the oldest age is 2.13 +/- 0.16 ka BP. The relative young OSL ages and deep aeolian sediment indicated very high sedimentation rates in the late Holocene, especially after around 1 ka BP. The intensive aeolian activity and low TOC content indicate a drier climate in the late Holocene. The well-sorted sediments and similar grain size distributions of the three sections imply their similar wind regimes. Based on the evolution history of the Yellow River’s headward erosion, it is inferred that little aeolian activity occurred in this region during the early and mid-Holocene. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Aeolian activity OSL dating Headwater Region of the Yellow River Tibet Plateau |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000390733300014 |
WOS关键词 | QINGHAI LAKE AREA ; PERMAFROST DEGRADATION ; CLIMATIC-CHANGE ; GONGHE BASIN ; SEDIMENTS ; DESERTIFICATION ; LUMINESCENCE ; DEPOSITS ; CHRONOLOGY ; GRASSLAND |
WOS类目 | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
WOS研究方向 | Geology ; Agriculture ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198028 |
作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvirom & Resources, Lanzhou 730000, Peoples R China; 2.Linyi Univ, Coll Resources & Environm, Linyi 276000, Peoples R China; 3.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, Guangyin,Yu, Lupeng,Dong, Zhibao,et al. Holocene aeolian activity in the Headwater Region of the Yellow River, Northeast Tibet Plateau, China: A first approach by using OSL-dating[J],2017,149:150-157. |
APA | Hu, Guangyin.,Yu, Lupeng.,Dong, Zhibao.,Jin, Huijun.,Luo, Dongliang.,...&Lai, Zhongping.(2017).Holocene aeolian activity in the Headwater Region of the Yellow River, Northeast Tibet Plateau, China: A first approach by using OSL-dating.CATENA,149,150-157. |
MLA | Hu, Guangyin,et al."Holocene aeolian activity in the Headwater Region of the Yellow River, Northeast Tibet Plateau, China: A first approach by using OSL-dating".CATENA 149(2017):150-157. |
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