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Preliminary Assessment of Degraded Kottayam Chira Wetland using GIS and its Developmental Scope

Author Affiliations

  • 1 School of Environmental Studies, Cochin University of Science and Technology, Cochin, Kerala, INDIA

Res. J. Recent Sci., Volume 2, Issue (ISC-2012), Pages 245-249, February,2 (2013)

Abstract

Conservation and restoration of wetlands is of utmost significance for sustainable development as well as natural resource management. Kottayam Chira, which spreads around an area of about 12 acres is located at the northern region of Kerala State, centered at coordinates of 11o49' N and 75o33' E., is a significant wetland with irrigational potential to nearby four Panchayats. The wetland is now in a degraded form and a preliminary scientific analysis has been done to characterize the wetland for future restoration efforts. GIS studies were performed to identify the geographical setting and to assess the wetland area change occurred during the past two decades. General slope and drainage pattern were determined. Analysis of land use\land cover pattern which has a decisive impact over surface and sub surface water was done. Invasive plant species spread over the wetland is visible even in the satellite image. Buffer zone and catchment area was demarcated for suggesting the conservation strategies to be adopted. GIS analysis indicates considerable shrinkage of the water body over the recent past. Developmental scope of the wetland in terms of irrigational and ground water recharge potential as well as tourism opportunities is also presented in this paper.

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