6. MONITORING OF MUNDRA COASTAL ZONE, GULF OF KACHCHH WITH REFERENCE TO LAND USE LAND COVER CHANGES USING REMOTE SENSING AND GIS by JOSHI KAJAL AND DHARAIYA NISHITH
Urban expansion has increased the utilization of natural resources and has altered land use and land cover patterns. Coastal zones are most susceptible for land use changes in this rapid era of industrialization and urbanization. Land cover change is a major distress of global environment change. To conserve the present natural resources and to be aware of the causes and consequences of over exploitation of soil and water resources a land use and land cover mapping and monitoring was done in the coastal zone of Mundra, one of the most rapidly growing industrial hub in India. Remote Sensing and Geographical Information System (GIS) techniques were used as a tool to monitor the land use and land cover change in the study area. The main objective of this study is to monitor and evaluate land use land cover (LULC) changes during the year 2000, 2006 and 2013. LISS-III satellite data and digital change detection techniques were used. The images were classified through supervised classification method coupled with expert visual interpretation techniques. Eight LULC classes were decided for the classification purposes. Error matrix and KAPPA analysis have been done for accuracy assessment classification. Change detection between the images for all the land use and land cover classes was computed. The overall accuracy of classification methodology is 89.2%, 91.3% and 90.1% and KAPPA statistics is 0.86, 0.88 and 0.87 for the 2000, 2006 and 2013 images respectively. The study exposes that the important coastal land use type of Mundra coast i.e. coastal wetlands and mangrove vegetation have been reduced drastically in their extent because of the reclamation, dredging, tipping and other anthropogenic activities along the coastal zone.
KEY WORDS: LISS III image, KAPPA analysis, Supervised classification, Mangrove destruction.
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