Photochemical Reactivity of Australian Floodplain River and Billabong Fulvic Acids upon Exposure to UV-B Radiation

摘要

The importance of lateral connectivity between the main river channel and adjoining floodplain is well recognized, and is fundamental to the Flood Pulse Concept (1). Floodplain-river interactions are important for exchanging particulate and dissolved organic matter. Suspended sediments and nutrients are transported from the river to the floodplain, while organic detritus, algal and microbial biomass is returned to the river channel (3).