Call for Papers: Hydrochemistry and Biogeochemistry of Tropical Mountainous Rivers and Estuaries

Fluxes of organic and inorganic matter between land and the coastal ocean are important components of global biogeochemical cycles, including the carbon cycle. However our understanding of the inputs via rivers and the fates of these materials to the coastal ocean remains poorly constrained, as most studies have focused on large temperate rivers, with measurements from tropical rivers being dominated by those from the Amazon. Over the last two decades, a growing number of studies have demonstrated that small mountainous rivers (SMRs) can collectively transport globally significant amounts of terrestrial materials to the coastal ocean, yet their hydrogeochemistry and the biogeochemical processes determining their character and controlling their fluxes, as well as the fate of this material in the coastal ocean are not well understood. Additionally, dramatic land-use change in the tropics has altered losses of terrestrial materials and their biogeochemical cycling in rivers, estuaries and coastal waters. The relative lack of information on the biogeochemistry of organic and inorganic materials exported by tropical SMRs thus represents a major gap in our understanding of global land-ocean carbon fluxes and biogeochemical cycles.

Applied Geochemistry is seeking research papers for a Special Issue focused on the hydrochemistry and/or biogeochemistry of tropical SMRs, their catchments, and associated estuarine and coastal waters, as well as paleo-records of temporal and/or spatial changes in fluxes or burial and storage. Of particular interest are contributions documenting alterations in SMR fluxes and biogeochemistry due to changes in land-use, hydrology, and climate, and studies evaluating tropical SMRs relative to their temperate and larger tropical counterparts.

Guest Editors

Steven Goldsmith (Villanova University)

Ryan Moyer (Florida Fish and Wildlife Conservation Commission)

Russell Harmon (North Carolina State University)

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