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G-tech reveals Indian city’s depleting vegetation cover

Bangalore, India: A new study by the Indian Institute of Science revealed that Indian city of Bangalore lost 66 percent of its vegetation and 74 percent of its water bodies in less than 40 years, even as its built-up area grew by 584 percent. Researchers used spatial techniques involving temporal remote sensing data and GIS with spatial metrics to determine the data.

The research paper published in the latest edition of the International Journal of Applied Earth Observation and Geoinformation revealed that the city’s tree cover, which once accounted for 72 percent of its area (488 sq. km) in 1973, dropped to 21 percent (145 sq. km) in 2010.

The findings further highlighted that urban growth, especially in the last five years, has been “haphazard”, particularly on the outskirts of the city. The report stated, “The extent of influence of the drivers of urbanisation… Bangalore was the most sought-after destination for its climatic condition and the availability of various facilities (land availability, economy, political factors) compared to other cities”. Bangalore grew intensely in the northwest and southwest zones in 1992 due to industrialisation, and “this phenomenon intensified due to impetus to IT and BT sectors in SE and NE during post-2000”.

While the central core areas of Bangalore saw a compact growth, the outskirts have witnessed urban sprawl and are deprived of basic amenities, according to the study.

Source: The Hindu