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Corridor analysis in Rajaji-Corbett elephant reserve — A Remote sensing and GIS approach |
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| Authors: | Vinod K Hanna M S Ravichandran S P S Kushwaha |
| Institution: | 1. Zoological Survey of India, Dehradun 2. Zoological Survey of India, Chennai 3. Indian Institute of Remote Sensing, Dehradun |
| Abstract: | This paper deals with corridor analysis in Rajaji-Corbett Elephant Reserve in the Shivaliks of Uttaranchal state. Efforts were made to detect changes in the state of forest covervis- à -vis the status of corridors during the three periods i.e. 1967. 1986 and 1998 using remote sensing and GIS. TheERDAS Imagine digital image processing andArcView GIS software packages were used for this purpose. Temporal satellite imagery and ground observations in the Rajaji-Corbett Elephant Reserve revealed forest loss, degradation and disturbances in the corridor areas, hindering elephant movement and restricting them to forests islands. Motichur-Chilla corridor, despite being a highly favoured habitat for the elephants was found to be highly threatened followed by Kotdwar and Ramnagar corridors. Construction of wide bridges across Kunao-Chilla Canal, recreation of corridors through reforestation, reduction of all kinds of pressures in the corridor areas and providing higher protection to corridors are recommended. |
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