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Planning road network in mountain forests using GIS and Analytic Hierarchical Process (AHP) | ||
| Caspian Journal of Environmental Sciences | ||
| مقاله 5، دوره 8، شماره 2، تیر 2010، صفحه 151-162 اصل مقاله (664.53 K) | ||
| نویسندگان | ||
| K. Mohammadi Samani* 1؛ S.A. Hosseini1؛ M. Lotfian1؛ A. Najafi2 | ||
| 1Dept. of Forestry, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural Resources, P.O.Box 737, Sari, Iran | ||
| 2Dept. of Forestry, Faculty of Natural Resources, Sari University of Agricultural Sciences and Natural Resources, P.O.Box 737, Sari, Iran. *Corresponding Author's E-mail: Forester28@yahoo.com | ||
| چکیده | ||
| Forest road construction is the most costly operation in forestry. Road designing and construction in unsuitable areas may increase construction and maintenance costs and also cause many environmental impacts. Therefore, it is required to pay more attention to forest road design. In this research, we tried to introduce an appropriate method for locating forest roads using GIS and AHP simultaneously. The most important layers in locating forest road include slope, soils type, geology, hydrographic networks, aspects, trees volume m3 per hectare ,tree type and elevation maps which were determined and then by using expert thought and AHP method the study area was classified in five classes including very good, good, medium, bad and worse for forest road construction. Then two new variants were designed on the prepared AHP map: the first variant was designated using traditional method and Pegger extension was applied to design the second. Pegger Planning variant (PP_variant) had the highest efficiency in path from good and bad points of view based on AHP map. The results of this study illustrated that using AHP and GIS simultaneously can introduce an appropriate and suitable method in the forest road network planning. REFERENCES Akay, A (2003) Minimizing total cost of construction, maintenance, and transportation costs with computer-aided forest road design. Thesis doctor of philosophy, University of Oregon. 264 p. Akay, A., Karas, E.I.R., Sessions J., Yuksel, A., Bozali, N and Gundogan R (2004) Using high-resolution digital elevation model for computer-aided forest road design. Istanbul, Turkey, The international society for photogrammetry and remote sensing. 6p. [online]. Available at http://www.ismailkaras.com/files/ISPR S_Akay_Karas_vd.pdf. Anderson, A. E and Nelson, J (2004) Projecting vector base road network with a shortest path algorithm. Can. J. For. Res., 34, 1444-1457. 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L (2005) Automating Contour Based Route Projection for Preliminary Forestry Road Design Using GIS. MSc. Dissertation, Washington State University, Collage of Forest Resources, 87 p. available at: http://www.ruraltech.org/pubs/theses /lwrogers/index.asp Saaty, T. L (1980) The Analytical Hierarchy Process. McGraw-Hill Inc. NY, 269 p. Saaty, T. L (1996) Decision Making for Leaders. 3th edition. RWS Publications, 315 p. Tan, J (1992) Planning a forest road network by spatial data handling-network routing system, Acta Fore. Fen. 227, 85-90. Tiryana, T (2005) Assessment of sustainable forest management using fuzzy rulebased model. PhD Dissertation, University of Natural Resource and Management, ITC. Netherlands, 119 p. Zebardast, E (2002) Application of hierarchical analysis process in urban planning. Journal of Beu. Arts, pp. 13-21 (In Persian). | ||
| کلیدواژهها | ||
| Forest road network؛ road designing؛ GIS؛ AHP؛ road variant؛ Pegger software | ||
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آمار تعداد مشاهده مقاله: 3,054 تعداد دریافت فایل اصل مقاله: 3,135 |
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