Assessing The Land Use / Land Cover Changes Due To Urbanization In Mangalore, Karnataka, India

Abstract

Urbanization is the process by which cities expand and an increasing proportion of the population moves into urban areas, together with the corresponding decline in the number of people living in rural areas and the methods in which societies adjust to this shift. Over the past few centuries, there has been a considerable increase in the global population and industrialization of our economies. Consequently, a large number of people have relocated to cities. The present study aimed at monitoring the land use land cover changes in Mangalore region during the period 2009 to 2024. Remote sensing and Geographical Information System (Arc GIS 10.7) techniques were used to determine the land use and land cover changes, satellite images were downloaded from USGS  based on the analysis of temporal Landsat-8 satellite imagery. Netravathi and Gurupur River are two major rivers flows in Mangalore, Because of this, the change in land use and land cover was varying from day to day around the river mouth. The present study shows that classes like agricultural land built up area; water bodies, river basin and mixed vegetation have also experienced changes. Built-up lands (settlements) have increased from 117.0078 Km² in year 2009 to 698.7640 Km² in the year 2024. Because of rapid urbanization, increase in industries and increase in population has increased built up area.  Mangalore city is one of the fastest developing cities in India. Proper land use planning is essential for a sustainable development of Mangalore.