干旱区生态环境知识资源中心(Arid): Mega-blowouts in Qinghai-Tibet Plateau: Morphology, distribution and initiation

Arid

DOI	10.1002/esp.4507
	Mega-blowouts in Qinghai-Tibet Plateau: Morphology, distribution and initiation
	Luo, Wanyin 1,2; Wang, Zhongyuan 1,3; Lu, Junfeng 1; Yang, Linghai 1; Qian, Guangqiang 1; Dong, Zhibao1,4 ; Bateman, Mark D.2
通讯作者	Luo, Wanyin
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2019
卷号	44 期号:2 页码:449-458
英文摘要	Blowouts are wind-eroded landforms that are widely distributed in the north-eastern part in Qinghai-Tibet Plateau (QTP), China. These blowouts are thought to form in response to climate change and/or human activity but little is known about their morphodynamics. Using field surveys, remote sensing and geographic information system (GIS) spatial analysis, the distribution and morphology of blowouts are analysed and their initiation considered. Results show the QTP mega-blowouts are some of the largest in the world. The orientations of the trough shaped blowouts are parallel with the prevailing wind, but the saucer and bowl-shaped blowouts are influenced by bi-directional transport. Whilst regional patterns of blowout shape and size were observed to reflect the extent of aeolian sediments and wind regimes, the relationship between the different morphological parameters showed consistency. During initial stages of development, the length to width ratios of blowouts increase rapidly with area but after they reach a mega size this relationship stabilizes as blowouts widen. Initial luminescence dating shows that blowouts appear to have initiated 100 to 500years ago, coinciding with the Little Ice Age (LIA) climate event when northwest winds are known to have intensified. Further work is required to confirm this initiation period and establish the significance of mega blowouts for landscape degradation and human activities. (c) 2018 John Wiley & Sons, Ltd.
英文关键词	Qinghai-Tibet Plateau (QTP) mega-blowouts topography evolution age
类型	Article
语种	英语
国家	Peoples R China ; England
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000458932500004
WOS关键词	GONGHE BASIN ; AEOLIAN ACTIVITY ; CLIMATIC-CHANGE ; TROUGH BLOWOUT ; DUNE BLOWOUTS ; ISLAND-BEACH ; FLOW ; GEOMORPHOLOGY ; DESERT ; CHRONOLOGY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215087
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Gansu, Peoples R China; 2.Univ Sheffield, Geog Dept, Sheffield, S Yorkshire, England; 3.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; 4.Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Luo, Wanyin,Wang, Zhongyuan,Lu, Junfeng,et al. Mega-blowouts in Qinghai-Tibet Plateau: Morphology, distribution and initiation[J]. 北京师范大学,2019,44(2):449-458.
APA	Luo, Wanyin.,Wang, Zhongyuan.,Lu, Junfeng.,Yang, Linghai.,Qian, Guangqiang.,...&Bateman, Mark D..(2019).Mega-blowouts in Qinghai-Tibet Plateau: Morphology, distribution and initiation.EARTH SURFACE PROCESSES AND LANDFORMS,44(2),449-458.
MLA	Luo, Wanyin,et al."Mega-blowouts in Qinghai-Tibet Plateau: Morphology, distribution and initiation".EARTH SURFACE PROCESSES AND LANDFORMS 44.2(2019):449-458.