GEOMORPHOLOGY OF THE FUXIANHU DRAINAGE BASIN AND ITS STRUCTURAL IMPLICATION

CHENG San-you; LI Ying-jie

Volume 16 Issue 4

Dec. 2010

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CHENG San-you, LI Ying-jie, 2010. GEOMORPHOLOGY OF THE FUXIANHU DRAINAGE BASIN AND ITS STRUCTURAL IMPLICATION. Journal of Geomechanics, 16 (4): 383-392.

Citation:

CHENG San-you, LI Ying-jie, 2010. GEOMORPHOLOGY OF THE FUXIANHU DRAINAGE BASIN AND ITS STRUCTURAL IMPLICATION. Journal of Geomechanics, 16 (4): 383-392.

Citation:

CHENG San-you, LI Ying-jie, 2010. GEOMORPHOLOGY OF THE FUXIANHU DRAINAGE BASIN AND ITS STRUCTURAL IMPLICATION. Journal of Geomechanics, 16 (4): 383-392.

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GEOMORPHOLOGY OF THE FUXIANHU DRAINAGE BASIN AND ITS STRUCTURAL IMPLICATION

CHENG San-you^1
,,
LI Ying-jie²

1.
School of Earth Sciences and Resourecs, Chang'an Universty, Xi'an 710054, China
2.
Shaanxi Provincical Academy of Environmental Science Research and Design, Xi'an 710061, China

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Received: 2009-01-22
Published: 2010-12-01

Abstract

Abstract

We took adavage of ArcGIS software platform to obtain the data of geometrical shapes and boundaries of 61 sublevel individual watersheds in the Fuxianhu drainage With SRTM-DEM as the basic data, 34 in the ridges east to Xiaojiang fault, 27 in the ridges west to the Xiaojiang fault. Afterwards, we calculated the watershed areas, perimeters, river lengths, shape indexs, average slopes, relative height differences, elevation-area integral values, the drainage branching ratios and the level of the 61 watersheds. The results show some differences between the east and west ridges. These features indicates the difference in Late Cenozoic tectonic activity on both sides of the Fuxianhu drainage and reflects the uneven uplift on east and west sides of the Xiaojiang fault zone. The activity of the Xiaojiang fault zone imposed a control over the rapid uplift of the Fuxianhu drainage during the Late Cenozoic basin, and the rapid uplift of the Central Yunnan Plateau and the difference in activity of interior of the Xiaojiang fault zone are the leading factors causing the different topographies on east and west sides of the Fuxian drainage.
- digital elevation model (DEM),
- geomorphology,
- the elevation-area integral values,
- the drainage branching ratios

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References(24)

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