Sources, sinks and transformations of organic carbon in Australian floodplain rivers

  title={Sources, sinks and transformations of organic carbon in Australian floodplain rivers},
  author={Alistar I. Robertson and Stuart E. Bunn and Paul Boon and Keith F. Walker},
  journal={Marine and Freshwater Research},
This paper reviews research on fluxes of carbon in Australian floodplain rivers. Except where cover is absent, and in-stream gross primary production is >1 gC m–2 day–1 and ratios of production to respiration are >1, riparian sources dominate carbon pools in catchment streams. On floodplains, primary production by river red gum (Eucalyptus camaldulensis) forests is ~600 gC m–2 year–1. Total primary production by aquatic macrophytes and biofilms in floodplain wetlands is >2500 gC m–2 year–1 and… 
Organic carbon supply to a large lowland river and implications for aquatic ecosystems
The supply of organic carbon to large river systems is generally poorly understood. At issue are the relative contributions of in-channel, headwater catchment and flood plain primary production and
Short-term response of nutrients, carbon and planktonic microbial communities to floodplain wetland inundation
Environmental flows were released to the Macquarie Marshes (~210,000 ha) in north-west NSW of Australia between October and December 2005, inundating an estimated 24,600 ha of floodplain area.
Carbon dynamics during flood events in a lowland river: the importance of anabranches
Summary 1. Our objective was to measure the influence of hydrological connection with anabranch channels on the availability of major carbon sources in a lowland, anabranching floodplain river
River metabolism and carbon dynamics in response to flooding in a lowland river
Lowland riverine–floodplain systems often have significant but irregular inputs of allochthonous carbon. However, the importance of this carbon to riverine systems remains poorly understood. We
Sources of carbon fuelling production in an arid floodplain river
The present study suggests that floodplain inputs are important for fuelling short-term production in waterholes, but via an unconventional pathway; that is, fish mortality.
Gross primary productivity of phytoplankton and planktonic respiration in inland floodplain wetlands of southeast Australia: habitat-dependent patterns and regulating processes
Gross primary productivity (GPP) of phytoplankton and planktonic respiration (PR) (i.e., planktonic metabolism) are critical pathways for carbon transformation in many aquatic ecosystems. In inland
Sediment Trapping and Carbon Sequestration in Floodplains of the Lower Atchafalaya Basin, LA: Allochthonous Versus Autochthonous Carbon Sources
Recent studies suggest that about 2 Pg of organic C is stored on floodplains worldwide. The present study indicates the Atchafalaya River, fifth largest river in the United States in terms of
Catchment litter: a phosphorus source mobilized during seasonal rainfall
Wetlands in south-western Australia are often situated in the interdunal depressions of coastal sand dunes and have catchments with significant areas of native vegetation. While farming and
Nutrients and organic matter in a glacial river—floodplain system (Val Roseg, Switzerland)
Nutrient and organic matter dynamics were evaluated for a glacial river—floodplain system in the Swiss Alps (Val Roseg). Glacial melt water was the primary source of particulate organic and inorganic
Scale-dependent lateral exchanges of organic carbon in a dryland river during a high-flow experiment
We estimated the magnitude and direction of exchanges of particulate organic carbon (POC) and dissolved organic carbon (DOC) between the river and four floodplain wetlands (billabongs) and a 140-km