| Session Details | |
| Section | AS - Atmospheric Sciences |
| Session Title | Biosphere - Atmosphere Interaction in the Tropical Mangrove Ecosystem |
| Main Convener | Prof. Tapan Kumar Jana (Calcutta University, India) |
| Co-convener(s) | |
| Session Description | The majority of greenhouse gases are naturally produced as a result of biogeochemical processes leading to their production and destruction as well as the strength of their photochemical source and/or sink, all of which vary regionally but are globally connected. The goal of the International Global Atmosphere Chemistry (IGAC), Core project of IGBP has been to understand the factors that regulate composition and change in the atmosphere, including in situ chemical and physical processes as well as biogenic and abiotic sources and sink in the atmosphere. Both natural exchanges of trace gases, as they vary spatially and temporally on the earth surface and their alteration by anthropogenic activities and the effects of the deposition of atmospheric materials on the surface are important. Deposition provides a natural sink for atmospheric trace species that influence atmospheric chemistry, whilst also acting as a source of nutrients for biological system. However, in regions, where the biogeochemical cycles of many species are perturbed by anthropogenic activities atmospheric deposition may be an important source of toxic substances to the biosphere. It is of interest to know the impact of community structure change on trace gas emission. This session well focus on what we have learned with respect to the exchange of trace gases and aerosols in the mangrove ecosystem to regulate the atmosphere and their feedback to biological processes. Emphasis of this session will be given to address the consequence of change in atmospheric deposition, climate, ground level ozone, aerosols, carbon dioxide, N2O, CH4, and so on. Attempts will be made to document the causes of alteration in biosphere atmosphere exchange and what can be done to prevent, reduce or mitigate those changes for conservation of mangrove ecosystem in future. |