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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B8, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
characterizing carbon balance. Pilot studies were conducted
over representative watersheds in Northern India to collect
fresh seasonal stream water sampling during Aug 2006-Feb
2009.
Studies indicated that atmospheric CO; drawdown would be
about 4.4 billion moles/yr for total area of about 2200 sq km of
all three watersheds. Estimated annual dissolved carbon
(DC=DIC+DOC, inorganic and organic) flux varies from about
2.5 to 51 t/km?/year. Non monsoonal flux was observed to be
half that of monsoonal flux.
Using RUSLE and MMF models attempt was made to quantify
potential soil loss and soil organic carbon loss for entire
country with RS based inputs. Annual loss was estimated to be
23.2 and 23.8 t/ha/yr and SOC loss of about 168 and 140
kg/ha/yr. Out of major river basins, Brahmaputra basin was
having highest soil erosion (~34 t/ha/yr) and SOC loss (~507
kg/ha/yr avg.) where Ganga basin showed 130 kg/ha/yr SOC
loss.
ACKNOWLEDGEMENTS
Thanks are due to ISRO-GBP programme for funding this
project and extending all necessary support.
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