干旱区生态环境知识资源中心(Arid): 黄河乌兰布和沙漠段两岸地表沉积物多重分形特征及其指示意义

Arid

	黄河乌兰布和沙漠段两岸地表沉积物多重分形特征及其指示意义
其他题名	Multi-fractal Features and Their Significances of Surface Sediments along Both Banks of the Yellow River Reach in the Ulanbuh Desert
	常宏; 左合君; 王海兵; 闫敏
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2019
卷号	36 期号:6 页码:1559-1567
中文摘要	为了揭示黄河乌兰布和沙漠段两岸风沙沉积环境差异性与东岸沙物质来源,运用多重分形理论分析了两岸不同下垫面地表沉积物粒度多重分形特征。结果表明:除草地外,两岸沉积物众数粒径范围西岸为189.13 ~ 212.20 mum,东岸为133.89 ~ 168.56 mum,东岸地表颗粒整体较细,风能环境较弱。多重分形参数(D_0、D_1、D_2、Deltaalpha、 Deltaf)均表现为东岸> 西岸,东岸沉积物粒径分布范围大、局部叠加程度强,进一步表明东岸沉积物颗粒属性差异大、颗粒来源范围广、沉积过程复杂、沉积环境多样。多重分形各参数与2 ~ 50 mum 、100 ~ 250 mum粒径颗粒含量存在显著相关,据风沙颗粒运移规律,结合两岸地形地貌,初步揭示上风向乌兰布和沙漠为黄河东岸2 ~ 50 mum悬移颗粒的主要源区之一。
英文摘要	In this study, the multi-fractal theory was used to analyze the sand particle size of land surface sediment so as to demonstrate the variation of wind-induced sand sedimentary environment along both banks of the Ulanbuh Desert reach of the Yellow River and the sand source region on the east bank. Results showed that the sand particle size ranged from 189.13 to 212.20 mum on the west bank and from 133.89 to 168.56 mum on the east bank,which indicated that the surface particle size was finer and the wind energy was weaker on the west bank than those on the east bank. Multi-fractal spectrum parameters D_0,D_1,D_2,Deltaalpha,and Deltaf for the east bank were higher than those on the west bank, the particle size range on the east bank was wider than that on the west bank,and the local sediment particles on the east bank were more overlapped than those on the west bank,which further demonstrated the significant differences of the particle properties of sediment,wide range of particle sources,complex sedimentary process and diverse sedimentary environments on the east bank. There were the significant correlations among the parameters mentioned above and the contents of particle sizes ranging from 2 to 50 mum and 100 to 250 mum. According to the wind-induced sand migration law and the landforms on both banks, it was preliminarily revealed that the upwind Ulanbuh Desert was one of the main source regions of 2-50 mum suspended sand particles over the east bank of the Yellow River.
中文关键词	沉积物 ; 粒度 ; 多重分形参数 ; 沉积环境 ; 乌兰布和沙漠段 ; 黄河
英文关键词	sediment particle size multi-fractal parameter sedimentary environment Ulanbuh Desert Yellow River
语种	中文
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6621234
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315919
作者单位	内蒙古农业大学沙漠治理学院, 内蒙古自治区风沙物理与防沙治沙工程重点实验室, 呼和浩特, 内蒙古 010011, 中国
推荐引用方式 GB/T 7714	常宏,左合君,王海兵,等. 黄河乌兰布和沙漠段两岸地表沉积物多重分形特征及其指示意义[J]. 内蒙古农业大学,2019,36(6):1559-1567.
APA	常宏,左合君,王海兵,&闫敏.(2019).黄河乌兰布和沙漠段两岸地表沉积物多重分形特征及其指示意义.干旱区研究,36(6),1559-1567.
MLA	常宏,et al."黄河乌兰布和沙漠段两岸地表沉积物多重分形特征及其指示意义".干旱区研究 36.6(2019):1559-1567.