Evolutionary dynamics of the main-stem longitudinal profiles of ten kongdui basins within Inner Mongolia, China

doi:10.1007/s11442-019-1607-0

	Evolutionary dynamics of the main-stem longitudinal profiles of ten kongdui basins within Inner Mongolia, China
	Gu Zhenkui 1,2; Shi Changxing 1; Peng Jie 3
刊名	JOURNAL OF GEOGRAPHICAL SCIENCES
	2019-03-01
卷号	29 期号:3 页码:417-431
关键词	longitudinal profiles concavity tectonic activity stream power multiple regression models
ISSN号	1009-637X
DOI	10.1007/s11442-019-1607-0
通讯作者	Shi Changxing(shicx@igsnrr.ac.cn)
英文摘要	The longitudinal profiles of main streams of ten kongdui basins within Inner Mongolian Autonomous Region of China were characterized in this study by analyzing a series of quantitative indexes that are relevant to tectonic activity and river action, and by establishing a series of multiple regression models. The results reveal that all longitudinal profiles are concave in shape, with a range of concavity between 1.1 and 3.1, increasing from west to east. Data also show that the concavity of the profiles is significantly negatively correlated with profile length, altitude difference, average altitude, drainage area and sediment load of the basins. Analysis reveals that kongdui basins have suffered from moderate-to-weak tectonic activity over time, again characterized by a west-to-east weakening trend. Stream power also varies along the main channels of the ten kongdui basins; average values in each case fall between 0.8 W/m and 8.4 W/m, generally higher within the middle reaches. This decreasing trend in stream power within the lower reaches of kongdui basins might provide one key explanation for sedimentation there. Data also show that the average stream power in western and central basins tends to be higher than that in eastern examples, even though both the highest and the lowest values are seen within two middle ones. This analysis shows that the longitudinal profile concavity values are mainly controlled by tectonic activity and that the effect of river action is insignificant.
资助项目	National Natural Science Foundation of China[41671004] ; National Natural Science Foundation of China[41371036]
WOS关键词	GEOMORPHIC INDEXES ; ACTIVE TECTONICS ; RIVER INCISION ; MOUNTAIN ; PLATEAU ; UPLIFT ; MORPHOLOGY ; BEDROCK ; RATES
WOS研究方向	Physical Geography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000458216900008
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/49935]
专题	中国科学院地理科学与资源研究所
通讯作者	Shi Changxing
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Geosci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Gu Zhenkui,Shi Changxing,Peng Jie. Evolutionary dynamics of the main-stem longitudinal profiles of ten kongdui basins within Inner Mongolia, China[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2019,29(3):417-431.
APA	Gu Zhenkui,Shi Changxing,&Peng Jie.(2019).Evolutionary dynamics of the main-stem longitudinal profiles of ten kongdui basins within Inner Mongolia, China.JOURNAL OF GEOGRAPHICAL SCIENCES,29(3),417-431.
MLA	Gu Zhenkui,et al."Evolutionary dynamics of the main-stem longitudinal profiles of ten kongdui basins within Inner Mongolia, China".JOURNAL OF GEOGRAPHICAL SCIENCES 29.3(2019):417-431.