Incorporating the Novel Landscape Index (Spatial Road Disturbance Index) For Ecological Impacts Assessment of Roads Network (Case study: Eastern Part of Isfahan Province)
محل انتشار: دومین کنفرانس بین المللی اکولوژی سیمای سرزمین
سال انتشار: 1395
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 787
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شناسه ملی سند علمی:
IALE02_014
تاریخ نمایه سازی: 5 بهمن 1395
چکیده مقاله:
Transportation infrastructure affects the structure of ecosystem and has direct effects on ecosystem component. Fragmentation of habitat into small, non-contiguous patches may result in dramatic population declines. Thus appropriate studies quantifying ecological impacts of roads at landscape scale are essential. In this study, the Spatial Road Disturbance Index (SPROADI) was applied for the ecological impact assessment of the roads network in Eastern part of Isfahan Province, including Abassabad wildlife refuge and Siahkouh National park, which are among the most important habitats for Asiatic Cheetah (Acinonyx jubatus venaticus) classified as Critically Endangered (CR) on the IUCN Red List. This new landscape index uses three sub-indices including traffic intensity, vicinity impact and fragmentation grade to calculate the ecological impacts of roads network. Results obtained through quantifying the Spatial Road Disturbance Index showed that the degree of disturbance by roads network is between 0 and 54.53. Our results also revealed that 12 percent of Abassabad wildlife refuge and wide range of suitable habitats for Asiatic Cheetah were affected by roads network, which presents a conservation concern for this critically endangered species.
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نویسندگان
Shekoufeh Nematollahi
Ph.D. Student of Environmental Sciences – Environmental Planning, Department of Natural Resources, Isfahan University of Technology, Iran
Sima Fakheran
Assistant Professor of Environmental Sciences, Department of Natural Resources, Isfahan University of Technology, Iran
Alireza Soffianian
Assistant Professor of Environmental Sciences, Department of Natural Resources, Isfahan University of Technology, Iran
Saeid Pourmanafi
Assistant Professor of Environmental Sciences, Department of Natural Resources, Isfahan University of Technology, Iran
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