Landscape heterogeneity of dissolved organic varbpon (DOC) concentrations within tropical peat landscapes and links to heavy metal mobilisation

Authors:
Stephanie Evers , Paul Williams, Rory Padfield and Alexander Kiew Sayok

Book:
Proceedings of the 15th International Peat Congress

Venue:
Kuching

Keywords:
carbon-stores, drainage, landscapes, tropical-peatland

Documentfile:
ipc16p153a084everswilliams.etal_.pdf

Summary:

Tropical peatlands are globally significant carbon stores. To date, many studies have shown the impact of conversion of peat swamp forests (PSFs) into agriculture and the associated C emission from peat soils with clearance and drainage. Yet losses from fluvial carbon have so far received little attention. Fluvial C plays an important role as a transfer pathway of carbon between the terrestrial, freshwater and eventually marine C pools. However in addition to this, it forms a vector for mobilisation of micronutrients such as Iron (Fe) and other trace elements, between those same pools. Yet the heterogeneity of fluvial C concentrations in relation to land use type