Rapid Urban Expansion and Its Implications on Geomorphology: A Remote Sensing and GIS Based Study

Abstract

Topography, vegetation, climate, water table, and even the anthropogenic activities all are affected by urban growth through diverse mechanisms. The present study focuses on the implications of urban expansion on geomorphology in the historical city of Gwalior in central India. The expansion of urban area has been quantified by deriving data for four decades (1972–2013) from the Landsat images. The results show that the urban built-up area has increased by 08.48 sq. km during the first eighteen years (1972–1990) which has increased to 16.28 sq. km during the next sixteen years (1990–2006). The built-up area has gone up to 23.19 sq. km in the next seven years (2006–2013). Overall during the last 40 years the growth of the urban built-up is nearly three times of the built-up areas in 1972. The average decadal growth rate of population is 27.28 percent while that of built-up land is 36.29 percent. The construction activities have affected important geomorphic features such pediplain, buried pediplain, residual hills, and denudational hills. It was concluded that, instead of shortsighted urban development, proper measures should be taken in accordance with scientific planning for the urban expansion of the city in the future.

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Contribution for an Urban Geomorphoheritage Assessment Method: Proposal from Three Geomorphosites in Rome (Italy)

“…Urban geomorphology analyses: (i) the impact of urban sprawling and human activities on natural geomorphology (Gierlinger et al 2013, Mohapatra et al 2014, Mozzi et al 2016 (ii) the geomorphic constraints on urban development (Cooke 1976);…”

Assessment of Urban Expansion and Associated Spatial Transformation of Chandannagar City, West Bengal

“…The Indian scenario is not an exception. The impact of urban expansion of the large metros like New Delhi (Mohan et al, 2011;Jain et al, 2016), Mumbai (Moghadam and Helbich, 2013), Gwalior (Mohapatra et al, 2014) and Hyderabad (Wakodeet al, 2013) were extensively investigated, whereas the small and medium towns almost remained unnoticed. West Bengal, one of the most urbanised states of India before independence, has accommodated nearly 31.87% of the urban population (Census of India, 2011).…”