Conclusion
Analyses of multi resolution remote sensing data reveals that built-up has increased from 7.97% (in 1973) to 58.33% (2012) in Bangalore. The dense vegetation cover of 68.27% (in 1973) has declined to less than 25% (in 2012). The spatial extent of vegetation cover in Bangalore is about 100.20 sq. km with vegetation density of 0.14. Ward wise aggregation shows that Bangalore city has about 1.478 million trees, which is about one tree for every seven persons, which is inadequate even to remove respiratory carbon. Humans on an average respire 540-900 gms of CO per person per day and a hectare of trees sequester about 6-8 ton of CO2, which indicates that for every person there should have been 8 trees to sequester human respiratory carbon or to have adequate oxygen. This method is useful in tree cover and cannot detect under tree cover in there are specific small trees.
Thus necessitating better technologies intervention in modelling tree cover and analyzing natural resource status and needed intervention to balance the human needs and environmental produce.
