Estimatation of carbon stock in seagrass, mangroves and salt marshes is essential as they are the ecosystems with high carbon seqhetration rates can capture two-thirds of the organic C in marine environment.
During the UN Conference of Parties on Climate Change, Paris,-2015, India submitted Intended Nationally Determined Contribution (INDC) outlining the intended post-2020 climate actions. The target fixed by the Govt. of India to reduce net GHG emission intensity, includes the creation of an additional (cumulative) carbon sink of 2.5–3 GtCO2e through additional forest and tree cover by 2030.
Coastal vegetated ecosystems namely marshes, mangroves, and seagrass, termed "blue carbon", are well known for their effective high rates of annual carbon sequestration and the storage of the sequestered C on longer time scales. Coastal ecosystems are well known for the efficient C sequestration and storage capacity and could effectively mitigate the increase in atmospheric GHG concentration. Blue carbon ecosystems provide an essential support system for climate change adaptation along the coastline globally by sequestering significant amounts of carbon from the atmosphere and ocean.
Carbon pools in blue carbon vegetation and the top meter of sediment are most susceptible to land-use change and are often termed here ‘near-surface’ carbon. Lack of a comprehensive database on blue carbon sequestration and GHG emission from the ecologically important coastal ecosystems in India is a well-established fact. It is essential to create a carbon inventory for a coastal ecosystem to provide
(a) Following carbon stocks in a blue carbon ecosystem are being estimated as reservoirs that store and release carbon
(b) Source Apportionment of Organic Carbon ( Source-Sink characterstics)