Determining Range Suitability Using Fuzzy and Hierarchical Method (Case Study: Bagheran Birjand Watershed, South Khorasan Province, Iran)

Document Type: Research and Full Length Article


1 Department of Range and Watershed Management, Faculty of Water and Soil

2 2- Former M.Sc. student of Range Management, University of Zabol

3 Faculty of Natural Resources, University of Birjand


Evaluating rangelands means to identify and create potential and actual rangelands in order to utilize this valuable natural resource properly. Hence, one of the important factors in rangeland management is to determine range suitability and recognize factors affecting it. Weighted Linear Combination Method (WLC) is one of the most common methods used for locating and Analytic Hierarchy Process (AHP) method is one of the most used methods of criteria prioritization and weighting. The purpose of this study was to evaluate range suitability of Bagheran Birjand watershed area in Southern Khorasan Province, Iran using AHP-Fuzzy method in a region with an area of 11879 ha in 2014. For this propose, in the environment of Geographical Information System (GIS), the maps of factors affecting the suitability (slope, production, erosion, quality of water resources, water need estimation percent and distance from water sources) were prepared. Data were standardized using fuzzy method and for weighting the criteria, the Analytic Hierarchy Process method was used. The results of AHP-Fuzzy model based on the weighted linear combination showed that 55.43% of rangelands were in suitability class of moderate suitability (S2), 9.55% of the lands were in suitability class of low suitability (S3) and 6.21% of the lands were in non-suitability (N) class. So, the limiting factors in this model for sheep grazing in the study area are water resources, high slope and vegetation.


Main Subjects

Aghamohseni Fashami, M., 2002. Investigation of rangeland suitability in Lar rangelands using GIS. M.Sc. thesis in range management, Faculty of Natural Resources and Marine Science, Tarbiat Modarres University, Iran, 91 p. (In Persian).

Amiri, F., 2009. A model for classification of range suitability for sheep grazing in semi-arid regions of Iran. Livestock Research for Rural Development, 21(5): 241-266. (In Persian).

Amiri, F. and Arzani, H., 2012. Determination of site priority for apiculture by using Analytical Hierarchy Process (AHP) method, Iran. Jour. Range Desert Research, 19(1): 159-177. (In Persian).

Ariapour A., Hadidi M., Karami K. and Amiri F., 2013. Water resources suitability model by using GIS (Case Study: Boroujerd Rangeland, Sarab Sefid). Jour. Rangeland Science, 3(2): 177-188. (In Persian).

Arzani, H., Mousavi, S.A., Jafari, M. and Ajdary, G., 2014. Range Suitability Model for Livestock Grazing. Inter. Jour. Sustainable Development, 7(50): 105-112. (In Persian).

Arzani, H., Yousefi, S., Jafari, M. and Farahpour, M., 2006. Production range suitability map for sheep grazing using GIS (Case study: Taleghan Region in Tehran province). Jour. Environmental Studies, 37: 59-68. (In Persian).

Chen, L., Yang, X., Chen, L. and Li, L., 2015. Impact assessment of land use planning driving forces on environment. Environ. Impact Assess. Rev. 55: 126–135.

Fadaie, S.H., Arzani, H., Azarnivand, H., Nehzati, G.H., Kaboli, S.H. and Amiri, F., 2014. A study of range suitability model for apiculture by using GIS (Case Study: Taleghan Rangelands). Jour. RS and GIS for Natural Resources, 5(3): 29-44. (In Persian).

Holechek, J.K., 1998. An approach for setting the stocking. Rangeland, 10:10-14.

Karam, A., 2005. Analysis of land suitability for physical development in the North West of Shiraz using multi-criteria assessment approach in GIS. Jour. Geographical Researches, 54: 93-106

Malczewski, J., 1999. GIS and Multi criteria Decision Analysis. John Wiley and Sons, New York, NY, 392 pp.

Marull, J., Pino, J., Mallarach, J.M. and Cordobilla, M.J., 2007. A land suitability index for strategic environmental assessment in metropolitan areas. Landsc. Urban Plan. 81 (3): 200–212.

Mehrabi, H. R., Zeinivand, H., Hadidi, M., 2012. Site selection for groundwater artificial recharge in Silakhor Rangelands Using GIS Technique. Jour. Rangeland Sci., 2(4): 687-696. (In Persian).

Moghadam, M.R., 2009. Range and Range management. University of Tehran Pub., Tehran, 470 p. (In Persian).

Mohtashamnia, S., 2000. Determination of Semi-steppe Rangeland suitability in Fars province using GIS. M.Sc. thesis in range management. Faculty of Natural Resources. Tarbiat Modarres University. 184 p. (In Persian).

Nekhay, O., Arriaza, M. and Guzmán - Álvarez, J.R., 2009. Spatial analysis of the suitability of olive plantations for wildlife habitat restoration. Computers and Electronics in Agriculture, 65: 49-64.

Rafaei, M., 2006. Determination of range suitability for sheep grazing using GIS in semi-arid regions of Isfahan. M.Sc. thesis in range management, Islamic Azad University, Science and Research Branch, Tehran, 100 p. (In Persian).

Rostami, E., Mehrabe, H. and Farahpour, M., 2014. Determining Rangeland Suitability for Sheep Grazing Using GIS (Case Study: Sadegh Abad Watershed, Kermanshah Province, Iran). Jour. Rangeland Science, 4(4): 319-329. (In Persian).

Saaty, T. L., 1980. The analytical hierarchical process: planning, priority setting, resource allocation. New York: Mc Graw-Hill. 287p.

Shahabi, H. and Niyazi, C., 2009. Evaluation of factors affecting the location of rescue stations in Saqqez–Sanandaj Road using WLC. Geomatics Conference. Tehran. (In Persian).

Shao, H., Sun, X., Wang, H., Zhang, X., Xiang, Z., Tan, R., Chen, X., Xian, W. and Oi, J., 2016. A method to the impact assessment of the returning grazing land to grassland project on regional eco-environmental vulnerability. Environ. Impact Assess. Rev. 56: 155–167.

Sour, A., Arzani, H., Feizizadeh, B. Tavili, A. and Alizadeh, E., 2013. GIS Multi-Criteria Evolution for Determination of Rangelands Suitability for Goat Grazing in the Middle Taleghan Rangelands. Inter. Jour. Agronomy Plant Production, 4(7): 1499-1510.

Sui, D.Z., 1999. A Fuzzy GIS Modeling Approach for Urban land, Evaluation. Computer, Environment, and Urban systems, 16: 101-115.

Taghvaei, M. and Ghafarri, S. R., 2006. Prioritizing crisis in rural settlements by Using AHP (Case Study: Bazft). Jour. Isfahan University (Humanities), 20(1): 34-43. (In Persian).

Tahmasbi, P., 2001. Determination of the suitability of the semi – steppe rangeland of Sabzkooh in the province of Chaharmahal and Bakhtiari using GIS. M.Sc. thesis in range management, the College of Natural Resources of Tarbiyat Modarres University, Iran, 112 p. (In Persian).

Yousefi, N., 2005. A model for competence pastures for sheep grazing using GIS. Case Study Taleghan, Tehran. M.Sc. thesis in range management, University of Tehran. (In Persian).