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Research Paper | June 1, 2014

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Quantifying the impacts of roads on Isfahan landscape pattern using gradient analysis and landscape metrics methods

Zahra Mokhtari, Alireza Sofyanian, Seyed Saeed Mohaghegh, Ahmad Bahrevar

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J. Bio. Env. Sci.4(6), 334-342, June 2014


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Quantifying urban landscape`s pattern is fundamental for monitoring and assessing socio-economical and ecological urban applications. Road expansion is considered as one of the most significant factors in changing urban landscape`s pattern. The aim of this study is to quantify the impacts of roads on Isfahan`s landscape pattern. To achieve this aim, Isfahan land use map was prepared in six classes of urban, green spaces, agriculture, arid land, road and water. In the next step, a 15×3 km2 east-west transect crossing Isfahan`s city center was designed and then they were quantified using gradient analysis and patch density , index of the largest patch and the percentage of coverage metrics in class and landscape level . The class of road was integrated with the class of urban lands in order to show the effects of roads, then comparing these two transects, the effects of roads were assessed. The results showed that roads severely increased the density of patches in the city landscape. Metric values of the largest patch increase after integrating two applications of road and urban lands .Also, there was a significant correlation between the percentage of road coverage and patch density values. Therefore, the most important effect of road networks on city landscape is increased fragmentation of the city landscape.


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Quantifying the impacts of roads on Isfahan landscape pattern using gradient analysis and landscape metrics methods

Atlas of Isfahan city. 2000. The organization of Cartography and Geography and Geology, Tehran.

Shafaghi S. 2002. Geography of Esfahan, Isfahan University Press,120pp.

Zhang L, Wu J, Zhen Y , Shu, J. 2004. A GIS-based gradient analysis of urban landscape pattern of Shanghai metropolitan area, China, Landscape and Urban Planning 69, 1–16

Luck M, Wu J. 2002. A gradient analysis of urban landscape pattern: a case study from the Phoenix metropolitan region of USA, Landsc. Ecol. 17, 327–339.

Turner M.G. 1989. Landscape ecology: the effect of pattern on process. Annual Review of Ecological System. 20, 171–197.

Zhu M, Xu J, Jiang N, LiJ, Fan Y. 2006. Impacts of road corridors on urban landscape pattern: a gradient analysis with changing grain size in Shanghai, china. Landscape Ecol.,vol. 21,pp.723-734.

Whittaker RH. 1975. Communities and Ecosystems. MacMillan, USA New York, USA

Saura S. 2004. Effects of remote sensor spatial resolution and data aggregation on selected fragmentation indices. Landscape Ecol. 19, 197–209.

Turner MG, Gardner RH. 1992. Quantitative methods in landscape ecology, Springer

Forman RTT, Alexander EL. 1998. Roads and their major ecological effects. Annu. Rev. Ecol. Syst. 29, 207–231.

McGarigal K, Marks BJ. 1995. FRAGSTATS: Spatial Pattern Analysis Program for Quantifying Landscape Structure. Gen. Tech. Rep. PNW-GTR-351; Pacific Northwest Research Station, USDA-Forest Service, Portland

Weng Y. 2007. Spatial changes of landscape pattern in response to urbanization. Landscape and urban planning 81, 341-353

Wu J. 2004. Effects of changing scale on landscape pattern analysis: scaling relations. Landscape Ecol. 19, 125–138

Bowersox MA, Brown DG. 2001. Measuring the abruptness of patchy ecotones: A simulation- based comparison of patch and edge metrics. Plant Ecol. 156, 89-103

Forman RTT, Godron M. 1986. Landscape Ecology, Wiley, New York

Forman RTT. 1995 Land mosaics,the ecology of landscapes and regions, Cambridge:Cambridge University Press.

McIntyer NE, Knowles-Yanez K, Hope D. 2001. Urban ecology as an interdisciplinary field: differences in the use of urban between the social and natural sciences. Urban Ecosyst. 4, 5-24.

Baker LA, Hope D, Xu Y, Edmonds j, Lauver L. 2001. Nitrogen balance for the central Arizona-Phoenix ecosystem. Ecosystems 4, 582-602

Cheng J, Masser I. 2003. Urban growth pattern modeling: a case study of Wuhan city, PR China. Landscape Urban Plan. 62, 199–217

Yang X, Lo CP. 2003. Modeling urban growth and landscape changes in the Atlanta metropolitan area. Intl J. Geograph. Inform. Sci. 17, 463–488

Kalnay E, Cai M. 2003. Impact of urbanization and landuse change on climate. Nature 423, 528–531.

Botequilha Leitato A, Ahern J. 2002. Applying landscape ecological concepts and metrics in sustainable landscape planning. Landscape Urban Plan 59 (2), 65–93.