Dynamical characteristics of geomorphologic evolution of the basins covered by Pisha-sandstone in the eastern wing of the Ordos Plateau, China

doi:10.1007/s11629-018-4859-8

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	Dynamical characteristics of geomorphologic evolution of the basins covered by Pisha-sandstone in the eastern wing of the Ordos Plateau, China
	Gu Zhen-kui 1,2; Shi Chang-xing 1
	2018-05-01
Source Publication	JOURNAL OF MOUNTAIN SCIENCE
ISSN	1672-6316
Volume	15 Issue:5 Pages:1046-1056
Corresponding Author	Shi Chang-xing(shicx@igsnrr.ac.cn)
Abstract	There are several basins with high sediment yield in the Pisha-sandstone covering area of the east wing of the Ordos Plateau. Due to the lack of targeted research on the dynamical characteristics of geomorphic evolution that plays an important role in the sand production, this paper analyzed the tectonic activity intensity and erosion characteristics of the area. The results show that the intensity of tectonic activities in the area is generally moderateweak and shows an unconspicuous increase from north to south. Tectonic activity is manifested mainly in the form of uplift. The uplift rate in the lower reaches of each basin is greater than the erosion rate, which is prominent in the Kuyehe and the Tuweihe rivers. During the uplift of the regional topography, the most serious parts under erosion are generally concentrated in the upstream and midstream of basins. All longitudinal profiles of the basins have a shape close to an exponential function, which indicates that they are in the early stage of erosion evolution. The mechanisms of geomorphologic evolution of these basins have a great similarity. The conservative estimate of historical average erosion rate was less than 182-520 t/(km(2).yr), much less than that of the modern times. The average stream power values are typically distributed between 4 and 102 W/m, with the larger being in the Kuyehe and the Tuweihe rivers and the smallest being in the Qinshuihe River. The maximum stream power value appears in the downstream reach, which should be the main reason for the particles being directly injected into the Yellow River. From the perspective of geomorphological evolution, the current soil and water conservation measures can hardly cure the erosion of these basins in the long run.
Keyword	Dynamic characteristics Geomorphologic evolution Ordos Plateau Tectonic activity Stream power Geomorphological parameter
DOI	10.1007/s11629-018-4859-8
WOS Keyword	LOESS PLATEAU ; YELLOW-RIVER ; ACTIVE TECTONICS ; TIBETAN PLATEAU ; SOIL-EROSION ; LAND-USE ; INDEXES ; UPLIFT ; DEM
Indexed By	SCI
Language	英语
Funding Project	National Natural Science Foundation of China[41671004]
Funding Organization	National Natural Science Foundation of China
WOS Research Area	Environmental Sciences & Ecology
WOS Subject	Environmental Sciences
WOS ID	WOS:000431989800010
Publisher	SCIENCE PRESS
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/54777
Collection	中国科学院地理科学与资源研究所
Corresponding Author	Shi Chang-xing
Affiliation	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
Recommended Citation GB/T 7714	Gu Zhen-kui,Shi Chang-xing. Dynamical characteristics of geomorphologic evolution of the basins covered by Pisha-sandstone in the eastern wing of the Ordos Plateau, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(5):1046-1056.
APA	Gu Zhen-kui,&Shi Chang-xing.(2018).Dynamical characteristics of geomorphologic evolution of the basins covered by Pisha-sandstone in the eastern wing of the Ordos Plateau, China.JOURNAL OF MOUNTAIN SCIENCE,15(5),1046-1056.
MLA	Gu Zhen-kui,et al."Dynamical characteristics of geomorphologic evolution of the basins covered by Pisha-sandstone in the eastern wing of the Ordos Plateau, China".JOURNAL OF MOUNTAIN SCIENCE 15.5(2018):1046-1056.

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