Volume 10, Issue 2 (2006) MJSP 2006, 10(2): 61-103 | Back to browse issues page

Bayati Khatibi M. The role of drainage density ,relative relief on the occurrence of valley,s landslides in semi arid mountain Case study:NW slope of Sabalan Mt.. MJSP 2006; 10 (2) :61-103
URL: http://hsmsp.modares.ac.ir/article-21-10997-en.html

The role of drainage density ,relative relief on the occurrence of valley,s landslides in semi arid mountain Case study:NW slope of Sabalan Mt.

Maryam Bayati Khatibi

Assistant Professor Geographical Research Grupe of Tabriz University

Abstract: (6425 Views)

The semi arid mountain ,due to climatical ,hydrological and topographical properties ,represents vulnerable base for the occurrence of landslides.The deep stream bed and streamflow in long beds ,main triggering factors materials wall of valleys to slides events.In study region ,as a semi arid region ,was occurred many landslides ,because these landslides events changing the hydrological properties of valleys and amount of load sediment.In this study ,by using of geological and topographical maps ,sampling of soil and field work ,analysied the valleys landslides.The result of this study show that, all of failures and landslides are related to rate of drainge density ,specials depended to drainage density of deep beds , related to rate the changing of ratio of Ds/Dd ,also related to changing R .When increases the rate of slope angle ,then increases probably of the landslides occurrence on unconsolidated materials .

Keywords: Slope Instability, Key words:Applied geomorphology, landslides, Semi Arid Mountain, Drainage Density, Sabalan Mt

Received: 2010/05/25 | Accepted: 2010/05/25 | Published: 2010/05/25

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