Geospatial modelling for identification of potential ecological corridors in Orissa |
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Authors: | A Roy B S S Devi B Debnath M S R Murthy |
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Institution: | 1.Forestry and Ecology division, Land Resources Group RS & GIS Application Area National Remote Sensing Centre,Indian Space Research Organization (ISRO),Balanagar, Hyderabad,India |
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Abstract: | Development of forest connectivity and corridors are critical for biodiversity conservation and also ensures energy and genetic
exchange across greater spatial extent. A model has been developed to geospatially identify the potential ecological corridors
based on the vegetation type and land cover data in association with spatial disturbance profile. The model formulates the
route of least impedance due to (1) disturbance (a function of fragmentation, juxtaposition, Interspersion & proximity to
roads/settlements) and (2) vegetation type and land cover. This is because the movement of genetic information and materials
follow the path of least resistance across a landscape. The paper explores the utility of the approach to spatially generate
ecological corridors connecting 14 protected areas of Orissa. The model has been able to identify the potential route connecting
the different protected regions with 85–87% of the corridor in the natural areas. Of the 14 protected areas, only 12 could
be connected by the model as they confirm to the criteria for the corridor establishment. |
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