9:15 AM - 9:30 AM
[ACG22-02] CH4 Flux of Asian Terrestrial Ecosystems Based on a Soil Respiration Chamber Network
Keywords:Chamber network, CH4 flux, Larch forest, Tibet Plateau wetland, Tropical rainforest
Asian wetlands occupy vast areas from tropical peat swamp forests in Southeast Asia to boreal marsh in Northeast Asia, and as well as alpine meadow on the Tibet Plateau. Furthermore, Monsoon Asia is the largest rice-producing area. The countries of this region together produce 90% of the global output of rice. Thus, Asia plays an important role in the regional exchange of CH4 between terrestrial ecosystems and the atmosphere. However, currently Monsoon Asia is under various pressures such as land-use and climate changes. Quantifying CH4 balance is helpful for understanding their response and feedback to the changing world, and simultaneously is critical for setting targets for GHGs (e.g. CO2, CH4, N2O) emission reductions and to identify and promote mitigation strategies. This talk will present CO2/CH4 fluxes and their controls of a meadow peatland on Tibet Plateau, a larch forest in central Japan, and a tropical rainforest in the Peninsular Malaysia by using multichannel automated chamber systems.