Fingerprinting sub-basin spatial sediment sources in a large Iranian catchment under dry-land cultivation and rangeland farming: Combining geochemical tracers and weathering indices.

ABSTRACT:

Study region

The Kamish River catchment (308 km²); a mountainous agricultural catchment under dry-land and rangeland farming located in Kermanshah province, in western Iran.

Study focus

The main objective of this study was to apportion sub-basin spatial source relative contributions to target channel bed sediment samples using a composite fingerprinting procedure including a Bayesian un-mixing model. In total, thirty-four geochemical tracers, eleven elemental ratios and different weathering indices were measured or estimated for 43 tributary sediment samples collected to characterise three sub-basin spatial sediment sources and eleven target bed sediment samples collected at the outlet of the main basin. Statistical analysis was used to select three different comp

SUBMITTER: Raigani ZM 

PROVIDER: S-EPMC6686636 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature