Evaluation of environmental hazards of Tasuj area based on multivariate decision method

Authors

Department of Earth Sciences, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran

Abstract

The study area is Tasuj region, in East Azarbayjan Province, which consists of the mountainous and Tasuj plain. The purpose of this study is identification the areas with high potential for subsidence, earthquake and landslide in the Tasuj region, based on the factors affecting their occurrence and using the hierarchical analysis process (AHP) method. In this study, the effect of groundwater drawdown and the risk of subsidence due to it were evaluated. The average amount of water table drawdown in the study area was calculated about 6 meters and areas with high subsidence risk were identified. For the mentioned hazard zoning, 15 criteria, such as water table, water table drawdown, slope, aspect, distance of stream, land use, elevation, lithology, distance of fault, earthquake depth, fault length, distance of epicenter, earthquake magnitude, distance of road and rainfall were used. According to the results of this study, the criteria of water table, distance of faults and lithology, respectively, have the greatest effect on the risk of subsidence, earthquake and the potential for landslide occurrence. Also, most of the areas associated with high risk of subsidence, earthquake and landslide are located in the central and southern parts of the plain, eastern and northern parts of the region and mountainous and steep areas in the north and east of the region, respectively. Therefore, by studying the resulting zoning maps and identifying high-risk points in the basin, their harmful effects on natural resources and other parts can be reduced.

Keywords


Ahmadi, H., Mohammadkhan, Sh., 2003. Determining the factors affecting mass movements (Case study: Taleghan watershed). Iranian Journal of Natural Resources 55(4), 455- 466.
Ambraseys, N.N., Melville, C.P., 1982. A History of Persian Earthquakes. Cambridge University Press Cambridge, Britain.
Amiri, M., 2018. Risk assessment of land subsidence in Mashhad city. M. Sc. Thesis, Ferdowsi University of Mashhad, Iran.
Behyari, M., Alizadeh, A., Mahmoudian, Sh., 2017. Assess the impact of active structures on land subsidence risk using multivariate decision models. Advanced Applied Geology 7, 49-56.
Ekhlaspour, P., 2014. Seismic hazard zoning of Kerman province with multi criterion methods (AHP and Fuzzy) using GIS. M. Sc. Thesis, Shahid Bahonar University of Kerman, Iran.
Erden, T., Karaman, H., 2012. Analysis of earthquake parameters to generate hazard maps by integrating AHP and GIS for Küçükçekmece region. Istanbul Technical University, Turkey, Hazards Earth system Science 12, 475 – 483.
Ghavimi Panah, M.H., Khaledi Darwishan, A.W., Ghavimi Panah, M.R., 2018. Confirmation of Analytical Hierarchy Process (AHP) and Multivariate Regression (MR) in landslide zoning (Case study: Vali Asr watershed, Ardabil province). Tarbiat Modarres University oh Tehran (Iran). Journal of Eco Hydrology 3, 775- 789.
Ghodsipour, H., 2007. Analytical hierarchy process. Amirkabir University of Tehran Publications, 5th edition.
Hafezi Moghaddas, N., 2012. Engineering Geology. Mashhad printing, Arses Publishing (in Persian).
Hafezi Moghaddas, N., Ghafoori, M., 2010. Environmental Geology. Shahroud University of Technology Publications, 1th edition, p. 207 (in Persian).
Hatamifard, R., Mousavi, H., Alimoradi, M., 2013. Landslide hazard zoning using AHP model and GIS technique in Khorramabad city. Journal of Geography and Environmental Planning 23(3), 43- 60.
He, H., Hu, D., Sun, Q., Zhu, L., Liu, Y., 2019. A Landslide Susceptibility Assessment Method Based on GIS Technology and an AHP – Weighted Information Content Method, A Case Study of Southern Anhui, China. International Journal of Geo – Information 8(6), 256.
Khodabandeh, A.A., Amini Fazl, A., 1993. Geological map of Tasuj sheet (1: 100000), Geological Survey of Iran.
Khodabandeh, A.A., Amini Fazl, A., 1999. Geological map of Tabriz sheet (1: 100000), Geological Survey of Iran.
Khorshiddoost, A.M., Razmi, R., Maali ahari, N., Abbaszadeh, K., 2017. Study of the effect of groundwater level fluctuations on subsidence phenomenon in Qala region (East Azarbayjan, Tasuj). Journal of Geography and Planning 21(60), 73- 93.
Kosloff, D., Scott, R., and Scranton, J., 1980. Finite element simulation of Wilmington oil field
subsidence. I. Linear modelling. Tectonophysics, 65(3), 339 - 368.
Mokhtari, D., Ebrahimi, H., Salmani, S., 2019. Land subsidence susceptibility modeling using random forest approach (Case study: Tasuj plain catchment). Journal of Remote Sensing and Geographic Information System for Natural Resources 10(3).
Moradi, M., 2011. GIS- Based landslide susceptibility mapping using Analytical Hierarchy Process (AHP) in Dena (Iran). M. Sc. Thesis, University of Yasouj, Iran.
Nabavi, M. H., 1976. An Introduction to the Geology of Iran, Geological Survey of Iran.
Nadiri, A.A., Asghari Moghaddam, A., 2011. The use of multivariate statistical methods in the study of hydrochemical processes of aquifers (Case study: Tasuj plain). University of Urmia, The 14th conference of the Iran earth association and the 28th earth sciences conference.
Rahimi Shahid, M., Rahimi, N., 2018. Earthquake hazard zoning using Analytical Hierarchy Process (AHP) and Geographic Information System (GIS) techniques (Case study: central part of the Semirom city). Journal of New Findings in Applied Geology 22(1).
Ranjbar, M., Bayat, S., 2011. Investigating the natural hazard of Khomein city with emphasison earthquake and crisis management. Islamic Azad University of Rey (Iran). Zagros Landscape Geographical Quarterly 2(4).
 Saaty, T. L., 1977. A scaling method for priorities in hierarchical structures, journal of mathematical psychology, 15 (3), 234 – 281.
Saaty, T. L., 1994. How to make a decision: The analytical hierarchy process, Interfaces 24 (6, S), 19 - 43.
Saaty, T. L., Vargas, G. L., 2001. Models, methods, concepts and applications of the analytic hierarchy process. Kluwer Academic Publisher, Boston.
Shariat Jafari, M., 1997. Landslide and the principles of stabilizing natural slopes. Tehran Printing, Structural Publications (in Persian).
Varnes D. J., 1978. Landslide hazard zonation review of principle and practice UNESCO, Paris.
Zhu, L., Chen, Y., Gong, h. l., Liu, C., Wang, R., 2013. Spatial risk assessment on land subsidence in Beijing, China, 20th International Congress on Modelling and Simulationg Adelaide, Australia.