**8. Closing remarks**

This chapter synthesizes the main progresses in scientific research applied to understanding the dynamics of CH4 in tropical floodplains. Here, we focused on an integrative approach to the main aspects of the C cycle, describing methods based on observations on the Earth's surface. However, a better understanding of the methylotrophic methanogenesis and anaerobic oxidation of CH4 still needs to be clarified for these environments. The next generation of models of CH4 emission should take into account seasonal water level fluctuation and the methanogenic and methanotrophic activity associated with it. This bold goal can only be achieved

*Methane, Microbes and Models in Amazonian Floodplains: State of the Art and Perspectives DOI: http://dx.doi.org/10.5772/intechopen.90247*

using a multianalytical approach based on a synergy of models, statistical methods for data integration, and scientific cooperation. This effort can help to create a unique design, in which not only the biosphere and the feedback of hydrological modeling but also the soil microbiota will be considered in the regional cycle of C.
