Estimates of carbon fluxes from Poyang Lake wetlands vegetation in the growing season

Poyang Lake is the largest shallow lake wetlands in China, and which vegetation succession is rapid under high changeable hydrological regimes. This study measured the fluxes of carbon dioxide and methane simultaneously by opaque static chamber-gas chromatography technique for typical wetland vegetation ecosystems in the growing season. In view of the advantages both in temporal and spatial, HJ-1 satellite images were chosen as the data source for vegetation cover classification and area estimates. And based on the areas in different vegetation, carbon flux for the entire study area was estimated during the growing season. Results indicated that carbon dioxide flux has closer relationship with vegetation change than methane flux does.