LANDSLIDE HAZARD ZONATION IN SUBALPINE ECOSYSTEM USING AHP AND LANDSLIDE INDEX METHODS (CASE STUDY: MASOOLEH WATERSHED)

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JOURI M.H.; ZARE M.; FKHREGHAZI M.; SALARIAN T.; ASKARIZADEH D.

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Journal: NATURAL ECOSYSTEMS OF IRAN Year:2014 | Volume:4 | Issue:2 Page(s): 99-112

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Title

LANDSLIDE HAZARD ZONATION IN SUBALPINE ECOSYSTEM USING AHP AND LANDSLIDE INDEX METHODS (CASE STUDY: MASOOLEH WATERSHED)

Author(s)

Keywords

SUBALPINE ECOSYSTEMSQ2

LANDSLIDEQ2

LANDSLIDE INDEXQ2

AHPQ2

MASOOLEHQ2

Abstract

SUBALPINE ECOSYSTEMS are highly fragility as compared to biological and environmental factors. LANDSLIDE is one of the ruinous upshots of this ecosystem. One of the susceptible areas in the cause of natural factor is MASOOLEH watershed in the northern Iran. In order to zoning LANDSLIDE hazard, LANDSLIDE index (LI) and AHP method based on 14 factors, which include geology, slope, aspect, elevation, distance from faults, distance from road, distance from river, distance from ranch, stream power index, composition topography index, range condition, soil texture, rainfall and land use, were used. Quality sum methods were also used to evaluate the model. The result of models showed that both litho logy and range condition have important role in LANDSLIDE area. Qua, sensitive Shemshak formation, because of the fine-aggregate soil, of physical factors; and Overgrazing, grazing forth of season, early grazing, late term egression, and excess livestock are as the direct affecting factors on vegetation so that have simultaneous role to make the LANDSLIDE risk. Result also showed that the critical condition of range lands and the surrounded rangeland of folds have the most performance to generate the LANDSLIDEs. The results of the evaluation showed that LANDSLIDE index model, with amount of sumqualitative0.744, havebetterefficiency than AHP model, with amount of0.489. Managers and protectors of this ecosystem can inhibit and conserve the LANDSLIDE by control of animal grazing and using of mechanical tools in the sliding area.

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APA: Copy

JOURI, M.H., ZARE, M., FKHREGHAZI, M., SALARIAN, T., & ASKARIZADEH, D.. (2014). LANDSLIDE HAZARD ZONATION IN SUBALPINE ECOSYSTEM USING AHP AND LANDSLIDE INDEX METHODS (CASE STUDY: MASOOLEH WATERSHED). NATURAL ECOSYSTEMS OF IRAN, 4(2), 99-112. SID. https://sid.ir/paper/215190/en

Vancouver: Copy

JOURI M.H., ZARE M., FKHREGHAZI M., SALARIAN T., ASKARIZADEH D.. LANDSLIDE HAZARD ZONATION IN SUBALPINE ECOSYSTEM USING AHP AND LANDSLIDE INDEX METHODS (CASE STUDY: MASOOLEH WATERSHED). NATURAL ECOSYSTEMS OF IRAN[Internet]. 2014;4(2):99-112. Available from: https://sid.ir/paper/215190/en

IEEE: Copy

M.H. JOURI, M. ZARE, M. FKHREGHAZI, T. SALARIAN, and D. ASKARIZADEH, “LANDSLIDE HAZARD ZONATION IN SUBALPINE ECOSYSTEM USING AHP AND LANDSLIDE INDEX METHODS (CASE STUDY: MASOOLEH WATERSHED),” NATURAL ECOSYSTEMS OF IRAN, vol. 4, no. 2, pp. 99–112, 2014, [Online]. Available: https://sid.ir/paper/215190/en

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