- Topic:Water and matter cycles
Geochemical focusing and sequestration of manganese during eutrophication of Lake Stechlin (NE Germany)
Eutrophication of Lake Stechlin leads to changes in the sediment by an intensification of internal matter cycles. The reductive dissolution of Mn in shallow areas and the precipitation result in the fixation of Mn as rhodochrosite in the sediment below 56 m depth. Geochemical Mn focusing indicates oxygen-free conditions in deep water and can be used to reconstruct former environmental conditions.
Peak grain forecasts for the US High Plains amid withering waters
A predator-prey model shows the coupled dynamics of groundwater use and crop production. It provides the scientific basis for the sustainability analysis of the irrigation of agricultural land with groundwater.
A fast-response automated gas equilibrator (FaRAGE) for continuous in situ measurement of CH4 and CO2 dissolved in water
To better understand the production and loss processes of methane and carbon dioxide in water bodies, their concentrations need to be measured with high spatial and temporal resolution. For continuous in situ measurement of CH4 and CO2 dissolved in water, researchers from IGB developed a Fast-Response Automated Gas Equilibrator (FaRAGE).
Integrating perspectives to understand lake ice dynamics in a changing world
Extending ice records and standardising sampling protocols are among the recommendations that shall help researchers to better predict how changing ice cover will affect aquatic ecosystems.