Concept

Biogeochemical cycle

Related publications (216)

Impact of a large tropical reservoir on riverine transport of sediment, carbon, and nutrients to downstream wetlands

Large dams can have major ecological and biogeochemical impacts on downstream ecosystems such as wetlands and riparian habitats. We examined sediment removal and carbon (C), nitrogen (N), and phosphorus (P) cycling in Itezhi-Tezhi Reservoir (ITT; area = 36 ...

Amer Geophysical Union2011

Modelling of biogeochemical transformations in riparian soils: lessons learned from the Thur river revitalization experiment and open questions

David Andrew Barry, Alessandro Brovelli

In recent years, the key environmental importance of natural, healthy riparian ecosystems and soils has been recognized and restoration of degraded lands towards their former natural state has become an area of active research worldwide. Land use changes a ...

2011

Simulation tool for variably saturated flow with comprehensive geochemical reactions in two and three-dimensional domains

David Andrew Barry, Laurin Wissmeier

We present a software tool for simulations of flow and multi-species solute transport in two and three-dimensional domains in combination with comprehensive intra-phase and inter-phase geochemistry. The software uses IPhreeqc, the coupling version of the g ...

Elsevier2011

Chemical and Biological Gradients along the Damma Glacier Soil Chronosequence, Switzerland

Edward Mitchell, Tobias Jonas

Soils are the product of a complex suite of chemical, biological, and physical processes. In spite of the importance of soils for society and for sustaining life on earth, our knowledge of soil formation rates and of the influence of biological activity on ...

2011

RedOx Stability of Anode Supported Solid Oxide Fuel Cells

Antonin Faes

The weakness of nickel-based solid oxide fuel cell anodes is their low ability to withstand re-oxidation at working temperature, especially for the anode-supported cell design. The volume expansion coming along with nickel (Ni) oxidation induces stresses i ...

EPFL2011

Modelling soil carbon and nitrogen cycles during land use change

David Andrew Barry, Alessandro Brovelli, Jordi Batlle-Aguilar

Forested soils are being increasingly transformed to agricultural fields in response to growing demands for food crop. This modification of the land use is known to result in deterioration of soil properties, in particular its fertility. To reduce the impa ...

Springer2011

Using spatial and spatial-extreme statistics to characterize snow avalanche cycles

Johan Alexandre Philippe Gaume

In December 2008, an intense avalanche cycle occurred in the eastern part of the southern French Alps. Using this case study, this paper illustrates how spatial statistics can be used to analyse such abnormal temporal clusters of snow avalanches. Spatial r ...

2011

Measuring In Vivo Protein Half-Life

Didier Trono, Kai Johnsson, Christian Heinis, Isabelle Barde, Sonia Verp, Sandra Eloise Kjeldsen, Karolina Bojkowska, Francesca Santoni de Sio

Protein turnover critically influences many biological functions, yet methods have been lacking to assess this parameter in vivo. Here, we demonstrate how chemical labeling of SNAP-tag fusion proteins can be exploited to measure the half-life of resident i ...

Elsevier2011

Stochastic modeling of nutrient losses in streams: Interactions of climatic, hydrologic, and biogeochemical controls

Andrea Rinaldo, Gianluca Botter

We present an analytical, stochastic approach for quantifying intra-annual fluctuations of in-stream nutrient losses induced by naturally variable hydrologic conditions. The relevance of the problem we address lies in the growing concern for the major envi ...

American Geophysical Union2010

Implementation of variably saturated flow into PHREEQC for the simulation of biogeochemical reactions in the vadose zone

David Andrew Barry, Laurin Wissmeier

A software tool for the simulation of one-dimensional unsaturated flow and solute transport together with biogeochemical reactions in the vadose zone was developed by integrating a numerical solution of Richards' equation into the geochemical modelling fra ...

Elsevier2010

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