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Factors triggering landslide occurrence on the Zemun loess plateau, Belgrade area, Serbia

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2018
Authors
Lukić, Tin
Bjelajac, Dajana
Fitzsimmons, Kathryn E.
Marković, Slobodan B.
Basarin, Biljana
Mlađan, Dragan
Micić, Tanja
Schaetzl, Randall J.
Gavrilov, Milivoj B.
Milanović, Miško
Sipos, Gyorgy
Mezosi, Gabor
Knežević-Lukić, Nevenka
Milinčić, Miroljub
Letal, Ales
Samardžić, Ivan
Article (Published version)
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Abstract
Among the numerous factors that trigger landslide events, the anthropogenic impact caused by inadequate planning and faulty land use in urban areas is increasing. The Zemun settlement on the northern outskirts of Belgrade has experienced a number of landslides in the last three decades, endangering buildings and roads, and claiming human lives, particularly in the case of the 2010/2011 landslides. Selected meteorological parameters were used to calculate rainfall erosivity indices such as Precipitation Concentration Index and Modified Fournier Index over the period 1991-2015. Drought indices, Lang aridity index and Palfai Drought Index were calculated as well. Mann-Kendall trend test was applied to identify potential rising and/or declining trends both in meteorological parameters and calculated indices. Trend analysis of the annual and seasonal scales yielded a statistically significant trend in the spring time series. Stable arid and pronounced drought conditions were recorded. The m...odified Fournier index based on monthly mean values yields moderate aggressiveness, with several extreme values indicating very high erosivity classes, especially for 2010/2011. The geological substrate is predominantly loess and hence highly susceptible to erosion and slope failure when climatological conditions are suitable. Accelerated urbanization at the end of the last century reduced vegetation cover, intensified pressure on the vertical loess slope, and lacked suitable rain drainage systems so that surface-water runoff was directed into the porous loess, thereby endangering slope stability. We proposed a geomorphic model to describe the nature of the erosional processes on the loess cliffs of the Zemun loess plateau. Results from this study have implications for mitigation strategies.

Keywords:
Rainfall erosivity / Aridity / Loess / Landslide / Hazard / Zemun loess plateau
Source:
Environmental earth sciences, 2018, 77, 13
Publisher:
  • Springer, New York
Projects:
  • Transformation of Serbian Geospace - lessons from the past, contemporary problems and possible solutions (RS-176020)
  • Provincial Secretariat for Higher Education and Scientific Research, Vojvodina Province [142-451-2511/2017-02]

DOI: 10.1007/s12665-018-7712-z

ISSN: 1866-6280

WoS: 000437868400002

Scopus: 2-s2.0-85049563442
[ Google Scholar ]
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URI
http://jakov.kpu.edu.rs/handle/123456789/840
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  • Radovi istraživača / Researchers' publications
Institution
Jakov

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