5264

4934

كارشناسي ارشد

محيط زيست

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1388

دوازده،82ص.:مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

عليرضا سفيانيان،جمال الدين خواجه الدين

حميدرضا ضيايي

19/3/89

سعيد سلطاني،سيما فاخران

مهندسي منابع طبيعي

ID4934

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Quantifying landscape pattern of Isfahan City Zahra Mokhtari mokhtariiut@yahoo com 13 3 2010 Department of Natural Resources Isfahan University of Technology Isfahan 84156 93111 Iran Degree M Sc Language Persian Dr Alireza Soffianian Email Address soffianian@cc iut ac ir Abstract Urban landscape has dramatically changed due to development of urbanization and population growth The recent related research has been greatly promoted by the easier availability of higher resolution remote sensing data and the development of Geogrophical Information System GIS and geospatial techniques as well as other disciplines such as landscape ecology Quantifying urban landscape is fundamental for monitoring and assessment of ecological and socioeconomic consequences of urbanization The convergence of GIS remote sensing and other related disciplines has helped in quantifying monitoring modeling and subsequently predicting the urban land use development Isfahan city landscape has changed due to urban expansion and land use changes The aim of this research was detection of spatiotemporal changes from 1955 to 2007 To achieve this aim land use map of Isfahan was generated in 6 classes urban green spaces agricultural lands bare lands road and water Combining gradient analysis and mosaic analysis with landscape metrics were used for analyzing of landscape pattern In mosaic analysis the total extent of Isfahan city has been quantified in both class and landscape level For gradient analysis two transect from north to south and east to east were conducted across the city Metrics has been computed across the transects using moving window technique Mosaic analysis in class level showed percentage size and shape of classes has changed in this period In landscape level patches have become more complicated and smaller and landscape has become more fragmented and more complex in 52 year study period The comparison between transects showed that the gradient of land use changes and metrics in 1955 is more symmetric than 2007 The comparisons of metrics values showed that landscape pattern in city center have not changed significantly and the most changes occurred in the margins of transects In general the results showed that mean patch size and standard deviation of patch size is higher in margins than in median blocks Spatial pattern of urbanization could be quantified using landscape metrics with a gradient analysis approach Key word Landscape ecology Gradient analysis Mosaic analysis Landscape metrics and Isfahan city

عليرضا سفيانيان،جمال الدين خواجه الدين

حميدرضا ضيايي

سعيد سلطاني،سيما فاخران