Abstract
Quantification of urban expansion helps us to understand human induced effects on the environment in a temporal scale. Growing urbanization in Bangalore has resulted in demand for more space and resources. Since last 15 years the landuse and landcover of Bangalore area has been changed drastically due to increase in settlement, urban infrastructure, opening of roads and metros etc. Using geospatial tools, we studied the changes in landuse and landcover over 19 years (1992-2011) of period and changes in transport network over 41 years (1970-2011) in parts of Bangalore. Thus, the current study shows that the built-up area has been increased drastically, tree cover areas have been converted to agricultural lands and agricultural lands to built-up areas due to urbanization. There are also changes in drainage pattern, transport network and encroachment of water bodies. Thus the whole environment is getting affected adversely due to unplanned and rapid urban sprawl.
Highlights
Land Use (LU) Land Cover (LC) change is known as land transformation
The study has analysed the trend of urban growth which is main driver for current land use and land cover changes
Transformation of city from rural to urban and improvement in standard of living in recent decade are the main contributors to the land transformation
Summary
Land Use (LU) Land Cover (LC) change is known as land transformation. The modification of lands by human being has started from the dawn of civilization for their basic needs, but the current rate of LU pattern is leading to more negative impacts on the environment. Rapid growth of urbanization and developmental activi-. (2015) Quantification of Urban Expansion Using Geospatial Technology—A Case Study in Bangalore. Due to the demand for more space, the LC of the earth has been changing rapidly into several human LU practices such as built-up areas, commercial spaces, transport network etc. The knowledge of LU and LC has become increasingly important as the National plans to overcome the problems of haphazard, uncontrolled development, deteriorating environmental quality, loss of prime agricultural lands, destruction of important wetlands, and loss of fish and wildlife habitat [1]
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