Information - BG3.03 Fluvial networks and biogeochemistry (co-listed in HS)
Fluvial networks are prominent attributes of the Earth’s surface. They
are striking examples of self-organized systems and universal despite a
vast diversity of geologic, climatic, vegetational or hydrologic
forcing factors. Whether following the typical tree-like branching
patterns in runoff producing zones or the looping patterns in tidal
flats, networks all transport water and materials. Yet they also
constitute sites of high biodiversity and biogeochemical processing at
the landscape level. However, most concepts (e.g., river continuum,
spiraling) in ecology and biogeochemistry are traditionally linear as
they relate to isolated segments of a network rather than to its
ensemble. This has major implications for material transport, for the
connectivity between headwaters and downstream ecosystems, and
ultimately for the management of water resources.
We particularly invite contributions that show how hydrogeomorphic,
biogeochemical and ecological processes operate at the level of fluvial
networks rather than at the level of individual segments. We also
welcome contributions that show how network configuration or tributary
junctions may affect these processes. Contributions can include results
from modeling or empirical work.
Preliminary List of Solicited Speakers
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