This is a preview. Log in through your library . Abstract Little is known on microbial activities in the sediments of large lowland rivers despite of their potentially high influence on biogeochemical ...

GPR and aerial surveys were conducted to study changes of channel pattern in the lower course of the Obra River (western Poland). The river is an example of an intensive anthropogenic transformation, ...

Fly ash from coal burning contributes between 37 and 72 percent of the organic carbon particles in the Yangtze River basin. A new study finds that fly ash -- particles left over from burning coal -- ...